Experimental
CORN HYBRIDS
TESTED IN 1955
By R. W. Jugenheimer
and
A. F. Troyer
Bulletin 597 - UNIVERSITY OF ILLINOIS
AGRICULTURAL EXPERIMENT STATION
Location of regular
experimental-hybrid
test fields
CONTENTS
Page
MATERIAL TESTED 3
MEASURING PERFORMANCE 7
RESULTS OF THE TESTS 7
NORTHERN ILLINOIS
Double crosses (Table 2) 10
Single and double crosses (Table 3) 13
NORTH-CENTRAL ILLINOIS
Double crosses (Table 4) 14
Three-way and double crosses (Table 5) 17
CENTRAL ILLINOIS
Double crosses (Table 6) 18
Single and double crosses (Table 7) 21
Three-way and double crosses (Table 8) 22
Blight resistant three-way crosses (Table 9) 23
Single and double crosses (Table 10) 24
SOUTH-CENTRAL ILLINOIS
Double crosses (Table 11) 25
Three-way and double crosses (Table 12) 28
PERFORMANCE OF LINES IN SINGLE CROSSES (Table 13) 29
DOUBLE-CROSS HYBRID NUMBERS, PEDIGREES, AND INDEX (Table 14) 30
Acknowledgment is due W. T. Schwenk and Sons, Edwards, Illinois, for
providing land for one of the tests, Dr. W. C. Jacob, Professor of Agron-
omy, for valuable computational and statistical assistance, and to K. E.
Williams and H. M. Hayes for aid in field and laboratory work.
Urbana, Illinois
January, 1956
Publications in the Bulletin series report the results of investigations made
or sponsored by the Experiment Station
EXPERIMENTAL CORN HYBRIDS
I TESTED IN 1955
By R. W. JUGENHEIMER and A. F. TROYER'
THIS REPORT summarizes the results of advanced tests of
experimental corn hybrids conducted in 1955 by this Station.
Data from many preliminary tests involving specialized phases
of the corn-research program were not included in this bulletin.
Trials were made at four locations: in DeKalb county in
northern Illinois, in Peoria county in north-central Illinois, in
Champaign county in central Illinois, and in Fayette county
in south-central Illinois. These four locations are representative
of the soil, rainfall, and length of growing season in their respec-
tive areas.
Hybrids were compared for yield, maturity, resistance to
lodging, and other agronomic characters. Only hybrids of similar
maturity were tested on the same field. A familiar hybrid whose
maturity was considered the standard for the group is named in
each table heading.
Since most of the hybrids whose performance is recorded here
are not yet in commercial use, the information about them is of
most value to producers of hybrid seed. The 1955 performance of
hybrids available in commercial quantities to farmers is reported
in Bulletin 598 of this Station.
MATERIAL TESTED
One hundred and forty-five different double-cross hybrids
were grown at the four locations. Most of the Illinois hybrids
were developed by the senior author. The seed was produced by
controlled hand-pollination.
Three sets of single crosses and four sets of three-way crosses
differing in maturity were tested in 1955. The three-way crosses
(Tables 5, 8, 9, and 12) are a part of the "uniform" tests con-
ducted cooperatively by corn-belt states, including Illinois, and
1 R. W. JUGENHEIMER, Professor of Plant Genetics and Corn Research Co-
ordinator, and A. F. TROYER, Assistant in Agronomy.
4 BULLETIN No. 597 [January,
the U. S. Department of Agriculture. Seed of the unreleased
inbred lines involved in these crosses was contributed by the
state or by the federal corn breeder who developed them. Single
crosses whose performance is reported in Tables 3, 7, and 10
were developed by the Illinois Station and tested only in Illinois.
The following individuals are responsible at the present time
for collecting seed of inbred lines, making the crosses, and dis-
tributing crossed seed of the entries in the uniform tests: J. H.
Lonnquist (Nebraska), R. W. Jugenheimer (Illinois), and G. F.
Sprague (Iowa) — Tables 5 and 8; M. T. Jenkins (U. S. De-
partment of Agriculture) --Table 9; and L. A. Tatum (Kansas),
W. R. Findley (U. S. Department of Agriculture), and M. S.
Zuber (Missouri) — Table 12.
The University of Illinois does not produce hybrid seed corn
in commercial quantities. If a hybrid gives satisfactory perform-
ance, the parental lines are released for use by seedsmen. Hybrids
that include new inbred lines are produced under the "delayed
release" program adopted by most of the states in the corn belt.
Multiplication of a new line is handled by the Station, and the
production of single crosses in quantity is handled by the Illinois
Seed Producers Association, Champaign, Illinois. After a satis-
factory probationary period of two to five years, a new line is
released to the public.
Table 14 (see pages 30 to 32) lists the double-cross hybrids
whose performance is shown in this report and the tables in
which each appears. It also contains the pedigrees of the hybrids
tested. In the pedigrees, the order of the single crosses and of the
lines in the single crosses has no significance ; it does not indicate
which should be used as seed or pollen parent.
Illinois yellow hybrids are numbered consecutively below
2000 and above 6000. White hybrids are numbered in the 2000
series; these are usually followed by the letter W. Hybrids that
have performed well after wide testing in several corn-belt states
have been designated AES (Agricultural Experiment Station)
hybrids. Hybrids in the 600 series are similar to Illinois 1277 in
maturity; those in the 700 series correspond in maturity to Illi-
nois 21; those in the 800 series correspond to U. S. 13; and
those in the 900 series to Illinois 448.
The letter A or B following an Illinois hybrid number indi-
cates that the combination of inbred lines making up the hybrid
1956} EXPERIMENTAL CORN HYBRIDS: 1955 TESTS 5
has been rearranged or permuted. For example, if the original
pedigree of an Illinois hybrid was (1X2) (3X4), the letter A
following the number means that the hybrid was put together
(1X3) (2X4), the letter B, (1 X 4) (2 X 3). A difference in
reciprocals is not recognized in this method. When a short dash
(-) followed by a number occurs as part of an Illinois hybrid
number, it means that a tested related line has been substituted
for one of the inbred lines included in the original hybrid.
Performance of three-way and single-cross hybrids is of in-
terest to corn breeders, producers of hybrid seed corn, and to
farmers. Characteristics of single crosses such as yield, stand-
ability, seed size, shape, and quality definitely affect the practi-
cal production of hybrid seed corn. Some farmers are interested
in growing single-cross and three-way-cross hybrids commercially
because of their attractive appearance and extreme uniformity.
Use of single-cross and three-way-cross data for the prediction of
desirable double-cross combinations creates additional interest in
the performance of single crosses.
Prediction studies are an extremely valuable part of a re-
search program. Methods are available to predict the perform-
ance of the better hybrid combinations without making and
testing large numbers of undesirable crosses. For example, 1,225
single crosses and 690,900 double crosses are possible with 50
inbred lines. However, by using single-cross performance data,
the corn breeder can predict which of the many possible double-
cross combinations are likely to be most desirable. The following
six single crosses can be made with four inbred lines: A X B,
A X C, A X D, B X C, B X D, and C X D. The average per-
Table 1. — GENERAL INFORMATION: Tests of Illinois
Experimental Corn Hybrids, 1955
County8
Section
of state
Number
of hills
per plot
Plants
per
hill
Date of—-
Planting
vSttag
DeKalb
Northern
10
10
10
10
4
4
4
3
May 20
May 19
May 17
June 3
Oct. 18
Oct. 11
Oct. 25
Nov. 1
Peoria
North-Central
Champaign
Central
Fayette
South-Central
a The fields are located near the following cities and towns: in DeKalb county near DeKalb,
in Peoria county near Peoria, in Champaign county near Urbana, and in Fayette county near
Brownstown.
6 BULLETIN No. 597 [January,
formance of the four non-parental single crosses gives the
predicted performance of a specific double-cross hybrid. For
instance, the average yields of the four single crosses A X C,
A X D, B X C, and B X D give the predicted yield of double
cross (A X B) (C X D). The procedure in predicting acre yields
and percentage of erect plants from single-cross data is shown
below. The single-cross data are taken from Table 3.
(R161xR168)(R170xR169) ( Rl 29xR 1 62 )( R 1 65xR 1 66)
Bushels Percent Bushels Percent
per
acre
of erect
plants
per
acre
of erect
plants
R161XR169
112
82
R129XR165
79
80
R168XR170
103
61
R129XR166
91
84
R161XR170
68
63
R162XR165
88
37
R168XR169
108
71
R162XR166
90
66
4 | 391 4 | 277 4 | 348 4 | 267
Prediction 98 69 Prediction 87 67
Similar predictions can be made for other characteristics. Pre-
dicted hybrid combinations, however, should always be thor-
oughly tested under field conditions before being put into com-
mercial production.
Three-way crosses also provide useful predictions of the per-
formance of double-cross hybrids. A large number of inbred lines
can be compared, and the method is especially valuable where a
desirable seed-parent single cross is available for use as a tester.
Three-way crosses provide information on specific hybrids and
may often eliminate the time and expense required for testing
inbred lines in top crosses and single crosses.
The procedure in predicting acre yields and percentage of
erect plants from three-way-cross data is shown below. The
three-way-cross data are taken from Table 8. One hybrid is much
more promising than the other hybrid.
(WF9xHy)(R127xB38) ( WF9xHy )( N 1 5xN25 )
Bushels Percent Bushels Percent
per of erect per of erect
acre plants acre plants
(WF9XHy)R127 116 80 (WF9XHy)N15 84 42
(WF9XHy)B38 108 J7J2 (WF9XHy)N25 97 62
2 | 224 2 | 152 2 | 181 2 | 104
Prediction 112 76 Prediction 90 52
1956} EXPERIMENTAL CORN HYBRIDS: 1955 TESTS 7
MEASURING PERFORMANCE
All plots in these tests were planted, thinned, and harvested
by hand in well-fertilized fields prepared in the usual way for
corn. Individual plots were 2X5 hills in area. Six kernels were
planted in hills spaced 40 inches apart. The plots were thinned
to four plants per hill at DeKalb, Peoria, and Champaign, and
to three per hill at Brownstown.
Lattice-square designs were used to obtain the data reported
in Tables 2, 4, 5, 6, 7, 11, and 12. The data in Tables 3, 8, 9, and
10 were obtained in randomized blocks. Data in Tables 8 and 10
are the means of three replications of each entry; data in all
other tables are the means of four replications per entry.
RESULTS OF THE TESTS
Data obtained from the tests are summarized in Tables 2 to
12. Long-time averages are more reliable indexes of the perform-
ance of hybrids than a single year's result. The parts of the tables
summarizing the results of two or more years therefore deserve
the most weight when the results are studied.
Hybrids are listed in the tables in the order of their yield.
Acre yields are reported as shelled grain containing 15.5 percent
moisture, the maximum allowable for No. 2 corn. The crop from
two replications of each entry at each location was shelled to
determine the shelling percentage and moisture percentage. The
percentage of moisture in the shelled grain was obtained with a
Steinlite moisture meter. Erect plants at harvest and stand were
determined from actual counts on all replications of each test.
Data from all plots are included in the report on yield. The
only correction for imperfect stands was the following adjust-
ment for missing hills :
/Number of hills \ /0.3 X Number of missing \
Corrected _ Field \Per PIot / \hills Per Plot
weight " weight /Number of hills\ _ /Number of missing \
V per plot / V hills per plot /
This adjustment adds 0.7 percent of the average hill yield for
each missing hill, and assumes that 0.3 percent is made up by the
increased yield of surrounding hills.
Relative performance cannot be determined with absolute
accuracy by any method of testing. Small differences between
8 BULLETIN No. 597 [January,
entries are seldom of any significance. In fact, small differences
are to be expected among plots planted even with the same lot
of seed. Variations in growing conditions such as soil fertility
are reduced but not completely eliminated by replicating the
same entry several times in the same test. Unavoidable variation
may be determined by a mathematical procedure known as
analysis of variance. From this procedure figures may be ob-
tained that represent the range which differences between two
entries must exceed before those entries can be considered sig-
nificantly different. The method used to determine this range is
called the "Multiple Range Test."1 This method considers the
number of entries that fall within the range as well as the vari-
ability of the test. Data shown in boldface were not statistically
different from the best performance for that characteristic.
The season was favorable for corn at DeKalb, although corn
borers were quite prevalent. Hot, dry weather lowered yields at
Peoria. Conditions were good for yields at Urbana, but wind and
rain storms severely increased the amount of lodging. At Browns-
town conditions were better than average for yield, but stalk
rots greatly increased the amount of lodging.
The following double-cross hybrids, arranged in order of
yield, were outstanding in performance:
Northern Illinois
Five-year average: Table 2A — 111. 1555A, 111. 1575, AES 702, 111.
1279, 111. 1289, 111. 1493.
Four-year average: Table 2B — AES 702, 111. 1277, 111. 1555A, 111.
1575, 111. 1279, 111. 1493.
Three-year average: Table 2C — 111. 1555A, 111. 1863, 111. 1279, 111.
1559B, 111. 1575, 111. 1281.
Two-year average: Table 2D — 111. 1555A, 111. 1281, 111. 1279, 111.
1559B, 111. 1575, 111. 1863.
1955 results: Table 2E — 111. 1936, 111. 1279, 111. 1281, 111. 1863,
Minn. 511, 111. 1799.
North-Central Illinois
Five-year average: Table 4A — 111. 1511, 111. 274-1, 111. 1575, 111.
1760, AES 805, 111. 1560A.
Four-year average: Table 4B — 111. 274-1, 111. 1511, 111. 1555A, 111.
1831, 111. 1575, 111. 1760.
Three-year average: Table 4C — 111. 1332, 111. 274-1, 111. 1819, 111.
1875, 111. 1555A, 111. 1831.
1 "Multiple Range and Multiple F Tests," by D. B. Duncan, in Biometrics 11
(1), 1-43, 1955.
1956] EXPERIMENTAL CORN HYBRIDS: 1955 TESTS 9
Two-year average: Table 4D — AES 806, 111. 1332, 111. 274-1, 111.
972A-1, 111. 1912, 111. 1919.
1955 results: Table 4E — 111. 1916, 111. 274-1, 111. 1280, 111. 1555A,
111. 1913, 111. 1919.
Central Illinois
Five-year average: Table 6A — 111. 1421, 111. 1511, 111. 972A-1, 111.
1332, 111. 1777, AES 805.
Four-year average: Table 6B — 111. 1421, 111. 972A-1, 111. 1332, 111.
1511, AES 801, 111. 1777.
Three-year average: Table 6C — 111. 1332, 111. 1813, AES 801, 111.
1880, 111. 1890, AES 805.
Two-year average: Table 6D — 111. 1919, 111. 1913, 111. 1909, 111.
972A-1, 111. 1332, 111. 1421.
1955 results: Table 6E — 111. 1919, 111. 1421, 111. 1880, 111. 1332,
AES 803, 111. 1889; Table 8 — 111. 1927, 111. 1921, 111. 1922, 111.
1926, 111. 1928; Table 10 — 111. 1935.
South-Central Illinois
Five-year average: Table 11 A — 111. 1332, 111. 1349, 111. 1656, 111.
1539A, 111. 1771, 111. 2235W.
Four-year average: Table 11B — 111. 1851, 111. 1859, 111. 1656, 111.
1857, 111. 1332, AES 805, 111. 1849.
Three-year average: Table 11C — 111. 1859, 111. 1851, 111. 2246W,
111. 1332, 111. 1656, 111. 1857, AES 805, 111. 1849.
Two-year average: Table 1 ID — 111. 1857, 111. 1349, 111. 1893, AES
805, 111. 1332, 111. 1849.
1955 results: Table HE — 111. 1893, AES 805, 111. 1849, 111. 1909,
111. 1918, 111. 1919; Table 12 — AES 805, 111. 1919, 111. 1913,
U.S. 619W.
The following single crosses and three-way crosses were out-
standing in grain yield and standability in 1955:
Northern Illinois
Table 2E — M14 X B14, WF9 X 1.205; Table 3 — R161 X R169,
R165 X R168, R162 X R168, R166 X R168.
North-Central Illinois
Table 5 — K1603-1-3 X (B14 X WF9), B40 X (Oh28 X Oh43),
B35 X (Oh28 X Oh43).
Central Illinois
Table 7 — R163 X R168, R159 X R168; Table 8 — R127 X (WF9
X Hy) ; Table 9— ((Oh07 X L97)-B-#3-S6-2) X (38-11 X
K201), ((Oh07 X L97)-B-#3-S2-l) X (38-11 X K201) ; Table
10 — R71 X R163, R71 X R101, R71 X R105, R71 X R168.
South-Central Illinois
Table 12 — R74 X (38-11 X K201), R75 X (38-11 X K201), Mo
9150 X (38-11 X K201), CI.49A X (K55 X H28), Mo9187W
X (K55 X H28).
10 BULLETIN No. 597 [January,
Table 2. — DOUBLE CROSSES OF ILLINOIS 1277 MATURITY
Tested in Northern Illinois, 1951-1955
(Data in boldface were not statistically different
from the best performance for that characteristic)
Rank
in Entry
yield
Acre
yield
Mois-
ture in Shelling
grain
Erect
plants
Stand
Ear
height
A — Five-year averages, 1951-1955
1 111. 1555A
bu.
106
perct. perct.
22 80
27 77
26 75
25 78
25 78
24 78
25 76
26 78
24 78
27 77
25 78
25 . 77
26 76
25 77
24 77
25 78
25 78
23 78
24 77
22 80
25 76
24 78
25 78
perct.
92
94
92
90
95
92
94
97
94
89
94
96
91
95
98
94
90
91
90
91
96
95
93
perct.
98
98
99
98
98
96
98
96
98
96
97
96
97
97
98
98
95
97
95
95
97
98
97
in.
42
41
46
41
39
38
37
39
37
41
36
37
48
36
38
37
40
35
38
37
42
34
39
2 111. 1575
104
3 AES 702
103
4 111. 1277. . .
103
5 111. 1279
103
6 111. 1280. .
102
7 111 1289
102
8 111. 1493
.... 102
9 111. 1559B.
102
10 111. 1091A
101
11 111 1281
101
12 111. 1557
... 101
13 111. 21
100
14 111 1558
100
15 111. 1560A
... 100
16 111. 101
99
17 111. 1290. . .
99
18 111 1375
98
19 111. 1585
98
20 Ohio K24 . .
98
21 111. 1595
97
22 111 1579
96
Average ....
101
B — Four-year averages, 1952-1955
1 AES 702
112
23 77
22 79
21 80
24 78
21 79
25 76
23 78
23 78
22 79
22 79
22 79
22 77
23 76
22 79
23 78
23 77
21 78
23 79
21 79
21 78
20 80
20 80
22 77
20 81
21 80
21 79
21 79
20 80
20 82
22 79
91
90
91
96
94
96
91
87
92
94
94
94
97
94
96
95
97
90
89
88
92
93
96
94
93
94
92
90
83
92
99
97
97
98
98
98
96
95
95
97
98
97
96
98
96
96
97
95
97
95
94
99
97
99
96
97
97
96
96
97
46
41
43
41
39
39
48
42
38
37
37
38
39
38
37
37
38
40
36
38
37
38
42
39
38
34
36
32
43
39
2 111. 1277. . .
112
3 111 1555A
112
4 111. 1575
... 112
5 111. 1279. . .
Ill
6 I.S.P. 2
110
7 111 21
109
8 111. 1091A
... 109
9 111. 1280. . .
109
10 111 1281
109
11 111 101
108
12 111. 1289
... 108
13 111. 1493
108
14 111. 1559B
108
15 111. 1557 .
107
16 111. 1558. .
106
17 111 1560A
106
18 111. 1290
105
19 111. 1375. . .
105
20 111. 1585
104
21 Ohio K24
104
22 AES 512
103
23 111. 1595
103
24 111. 1799. .
103
25 111. 1802
103
26 111. 1579. .
101
27 111. 1800
101
28 AES 610 . .
99
29 Ohio M15
97
107
(Table is continued on next page)
1966]
EXPERIMENTAL CORN HYBRIDS: 1955 TESTS
11
Table 2. — Continued
Rank
in Entry
yield
Aorp Mois-
A™ turein
yiej grain
Ailing g£
Stand
Ear
height
Dropped
ears
C — Three-year averages,
1953-1955
bu.
perct.
perct
perct.
perct.
in.
perct.
i
111. 1555A. . .
116
22
81
89
96
42
2
111. 1277
113
22
80
87
97
41
3
111. 1861
113
20
81
86
98
38
4
111. 1863
113
24
79
92
97
35
5
111. 1279
112
22
79
93
98
38
6
111. 1559B.. .
112
23
79
91
99
39
7
111. 1575
112
24
78
94
98
42
8
111. 1281
Ill
22
80
92
96
37
9
AES702
110
23
77
88
99
46
10
111. 1091 A
110
23
78
83
94
42
11
111. 1375 . .
109
21
80
86
97
36
12
111. 21
108
23
78
88
96
48
13
111. 101
108
22
80
91
98
37
14
111. 1289
108
22
77
93
97
38
15
111. 1493
108
24
78
96
95
39
16
111. 1557 . .
108
24
78
94
95
37
17
111. 1866
108
23
79
91
96
37
18
111. 1280
107
22
79
89
95
37
19
111. 1585
107
22
79
84
97
38
20
I.S.P. 2
107
25
76
94
99
38
21
AES 512.. .
106
21
81
91
98
38
22
111. 1560A
106
22
78
97
97
38
23
111. 1862
106
22
80
89
95
33
24
111. 1864
106
22
80
91
97
34
25
111. 1865
106
23
79
90
96
35
26
111. 1595 . .
105
23
78
94
96
42
27
Ohio K24
105
21
81
89
93
37
28
111. 1558
104
23
78
93
96
36
29
111. 1799
104
20
81
92
99
38
30
111. 1802
104
22
80
91
98
37
31
111. 1290 . .
103
23
79
87
93
39
32
111. 1579
100
22
79
92
97
34
33
111. 1800
99
22
79
90
97
35
34
AES 610
98
21
81
87
94
33
35
Ohio M15
97
21
82
78
97
42
Average. . . .
107
22
79
90
96
38
D — Two-year
averages,
1954-1955
1
111. 1555A...
122
25
79
85
96
44
S
2
111. 1281
117
25
80
89
98
40
3
3
111. 1861
116
22
79
79
98
39
3
4
AES 702
114
25
78
84
99
49
11
5
111. 1279
114
25
78
90
97
40
4
6
111. 1559B.. .
114
26
76
88
98
42
4
7
111. 1277
112
25
79
81
96
43
5
8
111. 1375
112
24
79
80
96
38
3
9
111. 2247W
112
25
77
83
97
44
3
10
111. 1575
Ill
27
76
91
97
44
4
11
111. 1863. .
110
27
78
89
96
35
3
12
111. 1091A
109
26
76
76
93
43
3
13
111. 1289
108
26
75
90
98
40
5
14
111. 1557
108
27
77
92
96
39
5
15
111. 1864
108
24
77
88
95
36
5
16
111. 1866. .
108
26
78
88
95
39
2
17
111. 101
107
25
79
88
97
39
5
18
Ohio K24
107
23
80
86
92
37
4
19
I.S.P. 2
107
27
75
92
99
38
3
20
AES 512
106
24
79
86
98
40
6
21
111. 21 . .
106
26
76
85
96
48
3
22
111. 1493
106
27
77
95
92
41
3
23
111. 1560A.. .
106
24
77
95
96
40
4
24
111. 1585
106
24
78
80
96
40
5
25
111. 1595
106
27
77
91
96
44
2
26
111. 1799 . .
106
22
80
88
98
40
4
27
111. 1802
105
24
79
87
96
39
4
28
111. 1862
105
25
79
84
93
33
4
29
111. 1280
104
25
77
84
94
37
3
30
111. 1290
103
26
78
81
93
41
4
(Table is concluded on next page)
12
BULLETIN No. 597
[January,
Table 2. — Concluded
Rank
in Entry
yield
Acre
yield
Mois-
ture in
grain
Shelling
Erect
plants
Stand
Ear
height
Dropped
ears
D — Two-year averages, 1954-1955
(concluded)
bu.
perct.
perct.
perct.
perct.
in.
perct.
31 AES 510
102
22
79
90
94
40
6
32 111.1865
102
26
78
86
96
37
5
33 111.1903
102
24
76
88
94
41
3
34 111.1558
100
25
76
89
95
38
2
35 AES 610
99
23
80
82
94
35
3
36 111.1579
99
25
78
88
97
35
5
37 111.1800
99
25
78
84
96
37
4
38 OhioM15
98
23
81
72
96
44
4
39 Ohio 5305
83
22
78
92
94
40
9
Average
107
25
78
86
96
40
4
E — 1955 results (4
replications)
Double crosses
1 111. 1555A
107
24
79
74
97
48
8
2 111.1375
98
23
79
68
97
38
4
3 111.1936
97
24
77
83
97
43
7
4 111.1279
95
24
78
88
97
41
4
5 111. 1281
95
23
80
84
97
38
4
6 111. 1863
95
25
77
84
95
38
5
7 Ohio K24
94
23
79
77
92
38
5
8 Minn. 511
93
23
79
84
97
41
2
9 AES 702
92
24
78
74
99
58
19
10 111. 1861
92
22
78
69
98
41
2
11 111.1862
92
24
79
76
98
37
6
12 111. 1277
91
24
78
72
99
45
6
13 111.1799
91
22
81
82
98
40
6
14 111.1802
91
24
79
77
96
40
5
15 111. 1091A
90
25
76
63
90
45
4
16 111. 1559B
90
24
75
80
98
44
8
17 111. 2247W
89
25
76
73
100
46
3
18 111.1864
88
24
76
80
94
39
6
19 111. 1866
88
25
77
86
95
39
3
20 I.S.P. 2
88
26
75
87
98
42
5
21 111. 1560A
86
24
77
92
97
41
6
22 111.1585
86
23
77
71
98
42
8
23 111.1595
86
25
76
88
95
45
4
24 AES 512
85
22
78
80
99
41
8
25 111.1575
85
26
76
86
98
46
6
26 111.1280
84
24
76
81
94
37
2
27 Ohio M 15
84
23
81
59
97
45
4
28 111.1865
83
24
77
79
95
39
7
29 AES 610
82
23
80
80
93
36
4
30 111. 101
82
24
78
82
97
38
6
31 111.1557
81
25
77
90
94
39
9
32 111.1800
81
24
77
79
97
39
7
33 AES 510
80
21
78
88
94
41
10
34 111. 1289
80
25
73
88
98
41
6
35 111.1558
80
24
76
84
96
39
2
36 111.1290
79
25
77
75
92
42
5
37 111. 1903
78
24
76
80
92
41
3
38 111.1937
78
27
74
89
98
42
6
39 111. 1579
77
25
78
87
99
36
9
40 Minn. CB8504....
77
23
76
79
97
35
4
41 111. 21
76
26
75
77
95
51
3
42 111.1493
76
25
75
93
93
41
5
43 111. 1902A
72
25
75
71
97
43
3
44 Ohio 5305
70
23
77
87
97
42
17
Average
85
24
77
80
96
42
6
Single crosses
1 M14XB14..
107
22
81
94
99
39
1
2 WF9XB14
107
24
77
78
95
46
7
3 Hy2XWF9
100
25
77
55
98
60
13
4 WF9XI.205
97
26
78
94
99
41
10
5 M14XWF9
92
24
77
58
98
45
5
Average
101
24
78
76
98
46
7
1956]
EXPERIMENTAL CORN HYBRIDS: 1955 TESTS
13
Table 3. — SINGLE AND DOUBLE CROSSES
OF ILLINOIS 1277 MATURITY
Tested in Northern Illinois, 1955
(Data in boldface were not statistically different
from the best performance for that characteristic)
Code
Entry
Acre
yield
Mois-
ture in
grain
. Shelling
Erect
plants
Stand
Ear
height
Dropped
ears
A —
Single
crosses
bu.
perct.
perct.
perct.
perct.
in.
perct.
1
R129XR159
79
26
77
76
91
46
3
?,
R129XR161
73
24
77
63
98
49
3
1
R129XR162
90
24
77
54
94
48
0
4
R159XR161
80
27
77
73
98
47
7
5
R159XR162
77
27
78
82
98
45
1
6
R161XR162. .
. 85
25
77
50
96
51
5
7
R129XR163
83
24
77
72
89
50
2
8
R159XR163
85
28
79
70
94
47
5
9
R161XR163
95
24
79
64
98
56
5
10
R162XR163
100
27
78
54
96
54
6
11
R129XR165
. 79
26
78
80
94
45
0
12
R159XR165
80
29
78
84
92
45
1
13
R161XR165
90
28
79
76
93
50
2
14
R162XR165
88
29
79
37
88
46
0
15
R163XR165
94
28
77
68
94
49
1
16
R129XR166
. 91
26
80
84
98
47
0
17
R159XR166
88
28
81
80
96
42
4
18
R161XR166
90
27
80
68
97
49
4
19
R162XR166
90
26
80
66
91
45
1
20
R163XR166
93
25
81
77
92
46
1
21
R165XR166. .
. 98
29
81
69
99
47
1
22
R129XR168
98
26
78
88
100
49
3
23
R159XR168
92
28
77
97
97
46
1
24
R161XR168
88
25
80
79
96
50
4
25
R162XR168
104
26
80
80
99
46
0
26
R163XR168
. 97
27
80
88
84
50
4
27
R165XR168
110
30
80
83
96
48
3
28
R166XR168
102
26
81
86
98
46
0
29
R129XR169
97
27
80
64
98
51
1
30
R159XR169
95
29
79
79
98
51
1
31
R161XR169. .
. 112
28
81
82
98
55
1
32
R162XR169
109
26
82
52
96
51
1
88
R163XR169
102
28
80
67
92
52
1
34
R165XR169
104
27
81
58
89
49
1
35
R166XR169
87
29
81
66
94
48
2
36
R168XR169
. 108
28
78
71
98
50
1
37
R129XR170
77
24
77
52
95
49
2
38
R159XR170
70
23
78
45
92
50
1
39
R161XR170
68
23
78
63
88
52
6
40
R162XR170
66
24
77
29
96
49
6
41
R163XR170. .
. 87
24
75
46
96
52
5
42
R165XR170
58
23
79
29
86
48
4
43
R166XR170
81
24
79
55
96
49
4
44
R168XR170
103
24
78
61
97
53
5
45
R169XR170
96
25
80
41
95
53
6
49
M14XWF9
89
23
77
65
93
46
5
Average
90
26
79
66
95
49
2
B —
Double
crosses
48
AES 702 ...
. 96
24
77
77
96
57
26
46
111. 1277
94
24
79
71
97
49
6
47
111. 1575
90
26
76
77
96
50
3
Average
93
25
77
75
96
52
12
14
BULLETIN No. 597
[January,
Table 4. — DOUBLE CROSSES OF ILLINOIS 21 MATURITY
Tested in North-Central Illinois, 1951-1955
(Data in boldface were not statistically different
from the best performance for that characteristic)
Rank
in Entry
yield
Acre
yield
Mois-
ture in Shelling
grain
Erect
plants
Stand
Ear
height
A — Five-year averages, 1951-1955
bu.
perct. perct.
perct.
perct.
in.
1 111. 972A-1 . .
. 96
22 80
91
96
44
2 111.1332
95
20 81
92
97
44
3 111.1511
95
21 81
94
90
45
4 111.1617
95
22 78
90
93
42
5 111. 274-1
94
20 81
94
97
44
6 111. 1570. .
. 93
22 78
88
98
45
7 111. 1555A
91
18 83
93
98
38
8 111.1575
91
22 79
94
98
39
9 111.1760
90
23 77
94
96
41
10 111.1280
89
19 83
91
97
37
11 111.1277..
. 88
20 82
93
97
39
12 AES805
87
22 77
96
94
41
13 111. 1560A
87
19 81
97
97
36
14 111.1290
86
19 82
92
95
37
15 AES702
85
21 78
92
97
41
16 Iowa 4297
80
20 80
93
92
38
Average. . . .
90
20 80
93
96
41
B — Four-year averages, 1952-1955
1 111.1819..
. 95
19 80
91
97
41
2 111. 972A-1
94
22 80
90
95
45
3 111.1332
94
20 81
91
97
44
4 111. 274-1
93
20 81
93
98
44
5 111.1511
93
21 81
92
88
46
6 111.1617..
. 92
22 78
89
92
42
7 111.1570
91
21 78
87
98
45
8 111. 1555A
90
17 83
94
97
39
9 111.1814
90
22 79
95
95
38
10 111. 1831
90
22 80
95
96
38
11 111.1575..
. 89
21 79
94
98
39
12 111.1760
. 87
23 77
94
95
41
13 111.1826
87
22 80
93
97
36
14 111. 1277
86
20 82
92
97
39
15 111.1280
86
19 81
90
96
37
16 111. 1560A.. .
. 86
18 81
96
97
37
17 111.1813
86
23 78
95
95
42
18 AES805
83
22 76
96
92
41
19 111. 1290
82
19 82
91
94
38
20 AES702
81
21 78
91
96
41
21 Iowa 4297
77
19 79
92
91
38
Average. . . .
88
21 80
92
95
41
(Table is continued on next page)
1956]
EXPERIMENTAL CORN HYBRIDS: 1955 TESTS
15
Table 4. — Continued
Rani
in
yieh
k
Entry
(
y^O 1
Mois-
ture in
grain
Shem
- as
Stand
Ear
height
Dropped
ears
C — Three-year
avers
iges,
1953-1955
bu.
perct.
peri
:t. perct.
perct.
in.
perct.
1
111. 1332 . .
... 86
20
81
90
96
41
2
111. 274-1
85
20
81
92
97
40
8
111. 972A-1
85
22
79
87
94
42
4
111. 1819
85
19
80
89
96
37
5
111. 1875
84
21
79
93
92
43
6
111. 1570
. 83
21
78
85
97
42
7
111. 1555A
82
18
82
91
97
36
8
111. 1617
82
22
78
87
94
40
9
111. 1831
82
22
80
94
95
34
10
111. 1511
81
21
81
91
84
41
11
111. 1814..
. 81
21
79
94
96
35
12
111. 1868
80
21
79
94
94
38
13
111. 2247W
80
20
79
84
96
39
14
111. 1575
79
21
79
91
98
36
15
111. 1760
79
22
77
92
94
38
16
111. 1280. .
. 78
18
81
87
95
33
17
111. 1826
78
22
80
92
97
32
18
111. 1277
77
20
83
89
96
36
19
111. 1560A
77
18
81
95
96
34
20
111. 1813
77
23
78
94
97
39
21
111. 1863. .
. 76
20
81
95
94
33
22
AES702
74
20
79
89
95
38
23
111. 1864
74
18
80
93
96
32
24
111. 1873
74
20
78
95
94
33
25
111. 1290
73
19
81
90
93
35
26
AES805
.... 72
22
76
94
90
38
27
Iowa 4297
67
20
79
92
90
36
Average. . . .
79
21
80
91
94
37
D — Two-year
avera;
ges,
1954-1955
1
AES806...
. 88
24
78
89
99
36
3
2
111. 1332
88
22
80
89
100
38
2
3
111. 274-1
86
22
80
90
99
39
0
4
111. 972A-1
86
25
78
88
98
40
2
5
111. 1912
86
23
80
88
96
38
2
6
111. 1919. .
. 85
22
79
90
98
39
2
7
111. 1913
84
22
80
84
96
39
2
8
111. 1916
84
22
80
81
97
39
2
9
111. 1917
84
22
79
84
93
38
0
10
111. 1511
83
23
79
91
96
40
8
11
111. 1617. .
83
25
76
86
95
37
2
12
111. 1819
83
22
78
88
98
36
5
13
111. 1875
83
24
78
93
96
40
6
14
111. 1555A
82
20
81
92
98
36
3
15
111. 1570
82
24
77
85
98
40
1
16
111. 1905. .
81
23
75
87
98
39
3
17
111. 1918
81
24
79
88
96
39
3
18
111. 1908
80
21
79
86
98
38
1
19
111. 1910
80
21
81
83
98
39
1
20
111. 1915
80
22
78
88
98
38
4
21
111. 1814. .
. 79
24
77
92
97
35
2
22
111. 1909
79
22
79
84
97
39
5
23
111. 1914
79
24
77
91
99
39
4
24
111. 1906
78
24
77
86
98
39
4
25
111. 2247W
78
22
78
84
98
37
4
26
111. 1280. .
. 77
21
79
88
97
31
4
27
111. 1760
77
25
76
92
99
36
3
28
111. 1831
77
25
79
94
98
33
3
29
111. 1868
77
24
78
94
95
37
4
30
111. 1575
76
25
77
92
98
36
4
31
Ohio 3247 . . .
. 76
21
80
88
98
31
4
32
111. 1826
75
25
7»
92
98
31
3
33
111. 1904
75
22
77
75
97
40
3
34
111. 6021
75
25
76
74
97
46
4
35
111. 1903
74
21
78
95
94
34
2
(Table is concluded on next page)
16
BULLETIN No. 597
[January,
Table 4. — Concluded
Rank
in
yield
Entry
Acre
yield
Mois-
ture in
grain
Shelling
Erect
plants
Stand
Ear
height
Dropped
ears
D — Two-year averages, 1954-1955
(concluded)
bu.
perct.
perct.
perct.
perct.
in.
perct.
36
111. 1277..
73
22
81
89
97
36
1
37
111. 1560A . . .
73
20
79
94
97
35
I
38
111. 1813
73
26
76
93
98
38
3
39
111. 1863
73
24
79
94
95
33
3
40
111. 1290
72
21
80
88
97
34
3
41
111. 1911..
72
26
77
89
94
41
4
42
AES702....
71
23
77
92
96
37
3
43
111. 1864
70
21
79
90
100
30
3
44
111. 1873
67
23
75
95
98
32
3
45
AES805....
65
24
74
94
95
36
3
46
Iowa 4297...
64
23
76
89
97
34
5
Average ,
78
23
78
89
97
37
3
E — 1955 results (4
replications)
i
111. 1332
71
25
78
92
99
33
1
2
111. 1916
71
24
78
95
94
32
1
3
111. 1917
71
24
77
92
90
33
0
4
111.274-1....
70
24
78
95
99
35
0
5
111. 1909
70
24
78
92
99
34
5
6
AES806....
. 69
26
77
90
98
32
5
7
Ind. 4656. . .
68
24
78
94
98
29
1
8
111. 1280
67
22
79
97
95
29
1
9
111. 1555A...
67
21
80
95
99
29
2
10
111. 1913
67
24
78
95
95
34
1
11
111. 1919. .
. 67
24
78
94
98
33
1
12
111. 972A-1 . .
66
27
76
90
96
33
1
13
111. 1912. . . .
66
24
78
97
95
33
1
14
111. 1863. . . .
64
25
78
98
92
28
2
15
111. 1875
64
26
76
95
92
34
3
16
111. 1760. .
. 63
27
75
97
99
31
2
17
111. 1831
63
26
77
96
97
28
1
18
111. 1910
63
23
80
94
96
33
0
19
111. 2247W. .
63
24
76
91
97
32
4
20
111. 1617
62
30
74
87
90
32
3
21
111. 1814. .
. 62
26
74
99
94
31
1
22
111. 1826
62
28
78
95
96
26
3
23
111. 1903
62
22
77
99
91
28
2
24
111. 1868
61
26
76
95
92
32
5
25
Ohio 3247...
61
21
77
96
97
27
5
26
111. 1511. .
60
25
77
96
95
33
1
27
111. 1908
60
23
77
96
96
32
0
28
111. 1914
60
26
75
98
99
32
3
29
111. 1915
60
23
77
90
97
33
3
30
111. 1918
59
25
76
94
95
34
3
31
111. 1570. .
. 59
26
74
93
98
34
1
32
111. 1819
59
22
77
98
96
29
3
33
111. 1813
58
27
75
96
98
33
3
34
111. 1905
58
24
73
92
97
32
2
35
AES702....
57
24
76
97
95
34
5
36
111. 1560A...
. 57
21
78
98
95
30
0
37
111. 1575
57
27
76
92
98
30
5
38
111. 1873
57
24
74
98
96
27
2
39
111. 1864
56
23
76
92
100
25
3
40
111. 21
54
26
76
96
100
32
4
41
111. 1906 . .
. 54
26
76
96
97
33
3
42
111. 1907
54
25
77
93
96
31
0
43
Iowa 4297...
54
24
72
93
96
31
3
44
111. 1277
53
24
80
93
96
32
2
45
111. 1904
53
22
75
90
96
33
4
46
111. 1290. .
. 52
23
79
96
96
29
5
47
111. 6021
52
27
74
85
95
40
3
48
AES805....
51
26
72
97
95
30
3
49
111. 1911
51
32
74
98
91
36
2
Average
61
25
76
94
96
32
2
1956]
EXPERIMENTAL CORN HYBRIDS: 1955 TESTS
17
Table 5. — THREE-WAY AND DOUBLE CROSSES
OF ILLINOIS 21 MATURITY
Tested in North-Central Illinois, 1955
(Data in boldface were not statistically different
from the best performance for that characteristic)
Code
Entry
Acre
yield
Mois-
ture in
grain
«
- ffi£
Stand
Ear
height
Dropped
ears
A — Inbred
lines
crossed
with
(B14XWF9)
bu.
perct.
perct
perct.
perct.
in.
perct.
1
B39 . . .
. 63
24
75
99
96
30
1
2
B40
. 72
27
75
98
98
34
1
3
B35
. 59
23
78
99
98
30
1
4
Oh460
. 56
21
75
93
95
23
0
5
Oh480
. 68
23
78
98
99
32
3
6
Oh481 . .
. 71
24
76
99
96
30
3
7
N9206
. 61
23
80
97
99
30
1
8
K1603-1-3
. 84
25
79
99
99
31
2
9
N32
. 56
20
78
95
93
30
6
10
N6
. 69
24
77
99
96
28
1
11
N6/HG 91310-2. .
. 61
24
74
100
98
27
2
12
N6/HG 91311-4
. 61
28
74
99
97
29
3
13
N6/HG 91313-4
. 68
27
78
98
97
33
5
14
N6/HG 91336-5
. 59
24
78
99
96
31
1
15
Oh45
. 73
26
78
98
96
26
2
16
Oh43. ..
. 68
24
78
99
99
25
2
17
Oh28
. 67
22
77
97
97
30
0
18
B37
. 57
22
75
99
99
30
2
Average
65
24
77
98
97
29
2
B — Inbred lines crossed
with
(Oh28XOh43)
19
B40...
. 78
29
76
99
100
33
1
20
B35
. 80
24
81
99
98
27
0
21
Oh460
. 53
23
75
96
96
20
1
22
N9206
. 66
23
79
98
97
28
3
23
K1603-1-3
. 65
26
75
98
96
30
1
24
N32...
. 58
23
80
92
96
27
1
25
N6
, 64
24
76
97
97
23
0
26
N6/HG 91310-2
69
26
77
97
99
25
4
27
N6/HG 91311-4
61
28
74
98
95
28
0
28
N6/HG 91313-4
65
26
78
96
96
30
3
29
N6/HG 91336-5...
64
26
80
97
97
26
1
30
B14
58
29
75
100
97
28
2
31
WF9
65
24
78
99
98
26
0
Average
65
25
77
97
97
27
1
C — Double crosses
45
111. 1933 . .
. 68
25
76
98
97
31
2
32
(WF9XB14)(Oh28XOh43) ...
. 64
24
78
99
95
28
1
35
111. 1922
. 64
27
75
98
96
35
1
39
111. 1926
. 64
24
75
100
99
32
2
40
111. 1927
. 63
25
73
99
96
32
5
34
111. 1921
. 63
27
75
98
99
33
0
48
111. 1902A
. 63
22
78
97
97
31
2
42
111. 1929
. 63
27
76
98
96
34
0
38
111. 1925
. 61
24
76
99
94
34
0
46
111. 1934
. 61
25
74
97
95
35
5
41
111. 1928. . ,
. 60
27
75
99
98
35
2
33
111. 1920
. 59
25
75
97
99
33
1
49
111. 1896A
. 59
26
76
97
98
35
4
44
111. 1932
. 58
25
75
99
96
36
3
47
111. 1935
. 58
25
76
97
94
31
3
37
111. 1924 . .
. 57
22
75
96
96
30
2
36
111. 1923
. 54
22
74
99
98
31
2
43
111. 1931
. 49
25
73
99
96
33
1
Average
. 60
25
75
98
97
33
2
18 BULLETIN No. 597 [January,
Table 6. — DOUBLE CROSSES OF U. S. 13 MATURITY
Tested in Central Illinois, 1951-1955
(Data in boldface were not statistically different
from the best performance for that characteristic)
Rank
in
yield
Entry
Acre
yield
Mois-
ture in
grain
Shelling
Erect
plants
Stand
Ear
height
A — Five-year averages, 1951-1955
bu.
perct.
perct.
perct.
perct.
in.
i
111. 1421 . .
95
17
83
77
98
44
2
III. 1511
93
17
83
76
99
48
3
111. 972A-1
92
16
80
76
99
47
4
111. 1332
92
16
82
81
97
46
5
111. 1777
90
17
81
74
99
46
6
111. 1788. .
90
18
79
71
98
48
7
111. 1759
89
18
80
73
98
46
S
U.S. 13
89
17
81
69
98
51
9
111. 274-1
88
16
83
74
98
46
10
111. 1570
88
18
81
71
99
47
11
111. 1764. .
. 87
17
79
74
99
48
12
AES 805
86
18
81
84
97
44
13
111. 1767
86
18
81
70
99
45
14
111. 21
85
17
83
72
98
47
Average. . . .
90
17
81
75
98
47
B — Four-year averages, 1952-1955
i
111. 1421. .
. 94
17
83
75
98
44
2
111. 972A-1
92
16
80
75
98
47
3
111. 1332
92
15
82
82
97
46
4
111. 1511
92
17
83
76
99
48
5
AES 801
90
17
80
84
96
41
6
111. 1777 . .
90
17
81
76
99
46
7
111. 274-1
89
16
83
75
97
46
8
111. 1570
88
17
81
75
99
48
9
111. 1788
88
17
79
70
98
48
10
Ohio 4808
88
17
81
74
98
41
11
U.S. 13...
88
16
81
72
97
51
12
AES 802
87
16
81
79
90
44
13
111. 1759
. 87
17
80
72
98
46
14
111. 21
85
16
83
76
98
47
15
111. 1767
85
17
81
75
99
45
16
AES 803...
. 84
17
81
80
96
42
17
111. 1764
83
17
79
75
98
48
18
AES 805
80
17
81
85
96
43
Average. . . .
88
17
81
76
97
46
C — Three-year averages, 1953-1955
i
111. 1421
. 91
17
84
67
97
43
2
111. 1332
89
15
83
76
96
46
3
111. 1511
89
17
83
70
98
48
4
111. 1896
88
16
83
70
98
43
5
111. 972A-1
87
16
80
67
98
47
6
111. 1777. .
. 87
17
82
69
99
46
7
111. 1570
86
17
82
68
98
48
8
U.S. 13
85
16
82
66
97
50
9
111. 1788
84
17
80
61
98
47
10
111. 274-1
83
16
83
66
97
46
11
111. 1813. .
83
18
81
75
97
43
12
Ohio 4808
83
16
82
66
98
40
13
AES 801
. 82
16
79
79
95
41
14
AES 802
82
16
81
74
90
44
15
111. 1767
81
17
81
68
99
45
16
111. 21 . .
79
16
83
69
97
48
17
111. 1759
79
17
80
64
98
46
18
111. 1880
79
15
82
71
95
42
19
111. 1890
79
17
80
79
98
43
20
AES 803
78
17
81
74
95
41
(Table is continued on next page)
1966]
EXPERIMENTAL CORN HYBRIDS: 1955 TESTS
19
Table 6. — Continued
Rank
in Entry
yield
Arrp Mois- F f
*JB U,™ Sh,,,lM *«
Stand
Ear
height
Dropped
ears
C — Three-year averages, 1953-1955 (concluded)
bu.
perct.
perct
perct.
perct.
in.
perct.
21
111. 1764 . .
76
16
79
68
98
48
22
AES 805
74
17
81
81
95
43
23
111. 1884
73
16
78
79
96
45
24
111. 1877
72
16
80
82
98
40
25
111. 1889
71
18
78
83
98
45
26
111.6075..
. 70
16
83
50
97
42
27
111. 1876
69
16
79
73
96
44
Average. . . .
81
17
81
71
97
45
D — Two-year
averages,
1954-1955
1
111. 1919. .
. 97
17
84
63
96
43
1
2
111. 1913
94
17
85
61
96
42
5
3
111. 1511
93
18
84
63
98
46
10
4
AES 806
92
19
84
59
98
40
9
5
111. 1909
92
17
84
63
96
46
7
6
111. 972A-1 . .
. 91
17
79
65
98
45
6
7
111. 1332
91
17
84
71
95
43
4
8
111. 1421
91
18
84
66
96
41
3
9
111. 1918
91
17
81
59
97
44
5
10
111. 1777
90
18
82
64
99
43
5
11
U.S. 13...
. 90
17
83
63
96
48
11
12
111. 1896
89
17
84
68
98
41
9
13
111. 1911
88
18
83
64
95
47
6
14
111. 1915
88
17
82
61
97
44
4
15
111. 1916
88
17
84
62
96
43
5
16
111. 274-1 . . .
87
17
83
62
95
44
2
17
111. 1570
87
19
82
67
98
44
13
18
111. 1788
87
18
80
62
97
43
5
19
111. 1908
87
17
85
62
95
44
5
20
AES807W
86
20
82
69
98
41
4
21
111. 1906. .
86
17
81
57
96
41
7
22
Ind. 2609
86
16
83
61
97
40
4
23
AES 801
85
17
79
75
96
39
3
24
111. 1914
85
18
81
57
98
44
3
25
111. 1813
83
19
81
69
99
42
10
26
111. 1905. .
. 83
17
79
66
97
43
8
27
111. 1912
83
17
83
64
95
41
4
28
111. 1767
82
18
81
65
99
43
7
29
111. 1917
82
17
82
54
96
42
3
30
AES 802
81
17
80
71
87
43
8
31
111. 21 . .
. 81
17
84
66
98
46
9
32
111. 1910
81
17
84
61
99
43
5
33
111. 6021
81
18
80
54
96
52
6
34
Ohio 4808
81
18
82
55
98
39
2
35
111. 1759
80
18
81
61
98
44
6
36
AES 803. . .
. 79
18
81
70
96
41
6
37
111. 1880
79
16
83
65
96
40
6
38
111. 1890
78
18
80
76
97
42
7
39
111. 1904
76
17
80
55
93
44
4
40
111. 1764
75
17
79
64
97
47
4
41
AES 805.. .
. 72
18
82
79
93
41
6
42
111. 6075
72
17
84
43
99
41
5
43
111. 1884
70
17
77
75
96
43
10
44
111. 1876
67
18
79
68
94
41
7
45
111. 1877
67
18
80
77
98
39
7
46
111. 1889
67
19
77
79
97
41
4
Average. . . .
83
17
82
63
97
43
6
(Table is concluded on next page)
20
BULLETIN No. 597
[January,
Table 6. — Concluded
Rank
in Entry
yield
Acre
yield
Mois-
ture in
grain
Shelling
Erect
plants
Stand
Ear
height
Dropped
ears
E — 1955 results (4
replications)
Double crosses
bu.
perct.
perct.
perct.
perct.
in.
perct.
1 111.1919..
... 100
17
84
36
96
48
2
2 111. 274-1
99
17
85
29
91
51
3
3 111. 1909
99
17
86
36
96
51
11
4 111. 972A-1
98
16
82
49
98
50
12
5 111. 1421
97
17
86
44
93
45
4
6 111. 1880. .
. 96
16
84
43
95
44
7
7 AES806
94
18
84
32
98
46
11
8 Ohio 4808
94
17
84
19
98
44
3
9 111.1332
93
16
84
53
93
46
8
10 111. 1767
93
17
81
43
100
46
11
11 111.1813..
. 93
19
82
47
99
49
17
12 111.1913
93
16
85
29
98
46
6
13 111.1916
93
16
85
36
97
47
8
14 111.1918
93
17
83
31
94
49
6
15 111.1905
92
17
81
42
95
49
13
16 AES803...
. 91
18
83
47
93
47
7
17 111.1788
91
18
81
37
96
49
6
18 111.1915
91
16
84
33
97
50
7
19 111.1912
90
16
85
35
94
46
5
20 111.1889
89
18
80
58
98
47
7
21 AES807W...
. 88
20
84
42
98
48
8
22 111. 1907
88
17
82
40
98
50
6
23 U.S. 13
88
17
83
39
95
54
18
24 AES 801
87
17
82
56
96
45
5
25 111.1511
87
17
84
40
98
49
15
26 111. 1777. .
. 87
17
83
38
98
47
8
27 111.1906
87
17
81
36
97
46
7
28 111.1908
87
16
85
27
98
49
8
29 AES 802
85
17
83
46
94
48
11
30 AES 805
85
17
84
61
97
48
12
31 111.1759..
. 85
18
84
39
99
50
10
32 111.1884
85
16
82
56
95
49
13
33 111.1890
85
17
82
58
94
46
14
34 111. 1902 A
85
16
85
28
98
46
7
35 111.1910
85
17
84
33
99
49
6
36 111.1917
. 85
17
83
33
96
47
5
37 111.1570
84
18
83
49
98
49
16
38 111. 1764
84
18
81
38
99
53
7
39 111.1877
84
16
85
54
98
44
6
40 111.1914
84
17
82
26
98
49
5
41 Ind. 2609 . .
. 84
16
85
39
95
43
5
42 111.1876
82
16
84
44
94
45
10
43 111. 1911
82
18
84
39
92
53
7
44 111. 21
81
16
85
36
97
50
10
45 111.1896
81
16
84
47
99
44
8
46 111. 6021
. 79
18
80
34
99
59
8
47 111.1904
73
17
82
22
92
50
5
48 111. 6075
73
16
85
16
99
47
3
Average
88
17
83
39
96
48
8
Single cross
Hy2XOh7
113
16
85
37
97
51
4
1956]
EXPERIMENTAL CORN HYBRIDS: 1955 TESTS
21
Table 7. — SINGLE AND DOUBLE CROSSES
OF U. S. 13 MATURITY
Tested in Central Illinois, 1955
(Data in boldface were not statistically different
from the best performance for that characteristic)
Code
Entry
Acre
yield
ture in
grain
Shelling
Erect
plants
Stand
Ear
height
Dropped
ears
A —
Single <
:rosses
bw.
perct.
perct.
perct.
perct.
in.
perct.
1
R129XR159
. 84
16
83
26
97
42
0
2
R129XR161
81
16
84
13
93
45
0
3
R129XR162
55
18
82
7
95
45
0
4
R159XR161
83
16
84
22
99
45
2
5
R159XR162
67
17
84
35
92
44
0
6
R161XR162
. 53
18
84
15
96
48
1
7
R129XR163
86
16
82
24
95
46
0
8
R159XR163
96
16
83
38
97
49
1
9
R161XR163
90
16
85
13
98
49
0
10
R162XR163
70
18
82
25
95
50
1
11
R129XR165
. 82
16
83
30
95
39
0
12
R159XR165
79
16
86
48
94
45
1
13
R161XR165
75
17
84
7
89
42
0
14
R162XR165
50
19
82
7
95
43
0
15
R163XR165
81
17
81
20
97
46
2
16
R129XR166. .
. 72
16
85
16
99
43
0
17
R159XR166
80
16
87
16
95
41
0
18
R161XR166
83
16
87
3
97
48
0
19
R162XR166
52
18
82
3
95
41
1
20
R163XR166
82
16
84
9
98
41
0
21
R165XR166
. 78
16
85
7
95
41
0
22
R129XR168
90
16
82
50
98
40
0
23
R159XR168
97
16
83
58
98
44
2
24
R161XR168
85
16
86
15
97
43
0
25
R162XR168
86
17
84
38
99
44
0
26
R163XR168. .
. 107
16
84
56
99
44
2
27
R165XR168
91
17
83
32
98
43
0
28
R166XR168
88
17
85
14
96
42
0
29
R129XR169
84
18
85
17
94
46
1
30
R159XR169
89
18
85
32
98
49
1
31
R161XR169. .
. 93
16
89
9
98
46
1
32
R162XR169
66
18
87
13
97
50
0
33
R163XR169
97
17
84
25
93
54
1
34
R165XR169
86
17
85
7
95
48
0
35
R166XR169
74
17
82
4
98
46
0
36
R168XR169
. 96
18
83
26
98
46
0
37
R129XR170
48
17
81
1
94
45
1
38
R159XR170
67
16
83
12
96
45
0
39
R161XR170
56
16
82
3
96
46
1
40
R162XR170
28
19
77
1
91
46
1
41
R163XR170. .
. 55
18
80
11
95
51
2
42
R165XR170
18
17
83
2
90
42
0
43
R166XR170
69
17
82
2
94
41
0
44
R168XR170
94
17
84
30
96
45
0
45
R169XR170
50
18
82
5
95
47
0
Average
75
17
84
19
96
45
1
B —
Double
crosses
46
111. 1332..
. 100
16
84
52
96
48
1
47
111. 1570
90
16
82
44
96
47
5
48
111. 1813
88
18
82
69
98
47
5
49
U.S. 13
86
17
83
38
98
49
1
Average
91
17
83
51
97
48
3
22
BULLETIN No. 597
[January,
Table 8. — THREE-WAY AND DOUBLE CROSSES
OF U. S. 13 MATURITY
Tested in Central Illinois, 1955
(Data in boldface were not statistically different
from the best performance for that characteristic)
Code Entry
Acre
yield
Mois-
ture in
lg Erect
Stand
Ear
height
Dropped
ears
A
— Inbred lines
crossed
with
(WF9 X Hy)
bu.
perct.
perct
perct.
perct.
in.
perct.
1
B38...
. 108
20
80
72
98
51
8
2
K720
94
19
82
82
98
46
12
3
K721
95
18
81
70
97
48
7
4
K722
89
17
81
87
97
42
7
5
N15
84
21
81
42
98
48
15
6
N25...
. 97
18
81
62
93
47
7
7
N35
98
19
79
63
98
54
14
8
R109B
99
19
82
69
98
49
7
9
R127
116
19
84
80
99
47
3
10
R129
84
17
82
72
98
45
8
11
R154. ..
. 100
18
82
37
98
51
2
12
L317
104
19
79
53
96
57
12
13
38-11
104
19
82
58
98
46
5
Average
98
19
81
65
97
49
8
B-
— Inbred lines
crossed
with
(WF9 X 38-11)
14
B38. . .
. 86
19
81
85
89
47
6
15
K720
81
19
82
84
98
39
18
16
K721
85
17
82
78
97
43
3
17
K722
85
18
82
94
99
39
5
18
N15
81
21
81
55
83
48
22
19
N25...
. 75
18
82
73
81
46
5
20
N35
89
18
81
80
95
49
7
21
R109B
86
18
84
75
96
46
8
22
R127
95
19
82
71
99
45
0
23
R129
85
18
83
84
94
42
3
24
R154...
. 91
18
81
73
93
50
2
25
L317
90
19
79
57
92
58
15
26
Hy
77
18
82
64
90
52
6
Average
85
18
82
75
93
46
8
c —
Double crosses
35
111. 1927. .
. 105
19
80
83
97
51
11
29
111. 1921
105
20
80
78
99
48
4
30
111. 1922
102
21
81
84
94
52
8
34
111. 1926
100
19
81
79
98
49
9
36
111. 1928
99
19
81
80
95
51
5
28
111. 1920. .
. 97
18
83
76
94
46
10
33
111. 1925
96
19
81
74
99
48
6
32
111. 1924
94
18
83
75
98
46
6
40
111. 1933
93
20
81
76
94
51
7
37
111. 1929
93
20
80
79
98
55
2
39
111. 1932..
. 91
20
80
70
97
52
6
31
111. 1923
90
18
81
78
99
46
12
27
U.S. 13
89
19
78
64
94
57
11
38
111. 1931
88
18
80
66
95
51
4
Average
96
19
81
76
96
50
7
1956]
EXPERIMENTAL CORN HYBRIDS: 1955 TESTS
23
Table 9. — BLIGHT-RESISTANT THREE-WAY CROSSES
AND STANDARDS OF U. S. 13 MATURITY
Tested in Central Illinois, 1955
(Data in boldface were not statistically different
from the best performance for that characteristic)
Code Entry
yield
Mois-
ture in Shelling
grain
Erect
plants
Stand
hetht
Dropped
ears
A — Inbred lines
crossed with (38-11 XK201)
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
Hy
bu.
67
perct.
19
21
20
19
22
20
19
20
18
18
20
18
19
19
19
21
20
20
21
20
20
19
22
perct.
83
83
84
84
80
80
81
78
80
82
81
84
82
82
81
81
81
85
82
83
81
83
82
perct.
79
63
57
62
59
77
64
81
79
68
74
53
71
63
77
72
65
76
78
78
68
69
70
perct.
97
94
96
96
98
96
94
97
94
98
96
89
97
95
92
97
94
95
94
95
97
96
95
in.
49
51
55
55
54
55
54
58
55
50
57
54
54
62
53
60
61
62
62
59
50
60
56
perct.
7
8
7
3
2
9
5
6
21
12
7
4
8
5
7
7
10
13
11
8
7
9
8
CI.42A
. 93
CI.42B
83
CI.42C . .
92
(HyXL97)-B-#3-Sl-l
... 83
(HyXL97)-B-#3-Sl-2. ..
. 81
(HyXL97)-B-#3-Sl-3
(HyXL97)-B-#3-Sl-4
... 89
. 66
(HyXL97)-B-#3-S4-l
... 80
(Hy X L97)-B-#3-S4-2
95
(HyXL97)-B-#3-S5-l. .
87
Oh07
. Ill
... Ill
(Oh07XL97)-B-#3-S2-l
(Oh07 X L97)-B-#3-S4-l
111
(Oh07XL97)-B-#3-S6-l
(Oh07XL97)-B-#3-S6-2. . .
(Oh07XL97)-B-#3-S7-l
... 101
112
... 99
(Oh07 X L97)-B-#3-S8-l .
101
(Oh07XL97)-B-#3-S9-l
... 88
(Oh07XL97)-B-#3-S10-l
... 98
(Oh07 X L97)-B-#3-S10-2
94
(Oh07 X L97)-B-|3-S10-3 . . .
... 99
93
B —
Single
crosses
34
35
38-11XK201. .
. 85
19
17
18
83
83
83
67
49
58
82
99
90
55
50
52
17
2
10
Hy2XOh07
113
99
24 BULLETIN No. 597
Table 10. — SINGLE AND DOUBLE CROSSES
OF U. S. 13 MATURITY
Tested in Central Illinois, 1955
(Data in boldface were not statistically different
from the best performance for that characteristic)
Code
Entry
Acre
yield
Mois-
t Shelling
Erect
M
Ear
Dropped
A —
Single
crosses
1
R71XR74
bu.
85
perct.
19
perct.
84
perct.
77
perct.
96
in.
41
perct.
6
2
R71XR101
100
17
84
73
97
43
1
3
R71XR105
98
19
82
89
98
47
4
4
R74XR101
. 82
17
80
80
95
43
1
5
R74XR105
79
17
83
72
96
46
10
6
R101XR105
. 70
16
82
80
94
47
1
7
R71XR129
84
18
82
80
94
43
4
g
R74XR129 . .
. 98
17
82
21
97
43
2
9
R101XR129
93
17
82
72
88
45
1
10
R105XR129
92
17
84
71
88
48
6
11
R71 XR163
103
18
82
78
94
48
5
12
R74XR163
. 94
17
81
65
97
48
1
13
R101XR163
101
16
82
51
93
51
1
14
R105XR163
100
18
84
54
93
51
5
15
R129XR163 ....
. . 84
17
84
12
93
47
2
16
R71XR168 . .
96
17
85
88
98
44
0
17
R74XR168
85
18
81
43
97
42
0
18
R101XR168
85
18
83
65
96
43
0
19
R105XR168 ....
90
17
84
67
96
45
1
20
R129XR168
101
17
84
50
97
43
4
21
R163XR168 .
94
17
78
62
98
45
1
92
17
83
65
95
45
3
B — :
Double
crosses
22
111. 1332
. 98
16
86
54
96
50
9
24
111. 1935
97
17
83
69
99
48
11
23
111. 1934
89
17
83
56
97
52
13
95
17
84
60
97
50
11
1956]
EXPERIMENTAL CORN HYBRIDS: 1955 TESTS
25
Table 11. — DOUBLE CROSSES OF ILLINOIS 448 MATURITY
Tested in South-Central Illinois, 1951-1955
(Data in boldface were not statistically different
from the best performance for that characteristic)
Rank
in
yield
Entry
Acre
yield
Mois-
ture in
grain
Shelling
Erect
plants
Stand
Ear
height
A — Five-year averages, 1951-1955
bu.
perct.
perct.
perct.
perct.
in.
i
111. 1657..
70
21
80
62
99
45
2
111. 1570
69
16
80
68
99
40
3
111. 1332
68
16
82
77
99
40
4
111. 1349
68
18
82
75
99
46
5
III. 1656
68
17
82
73
100
40
6
U.S. 13
. 68
16
82
64
99
43
7
111. 1539A
67
19
79
72
100
46
8
111. 1771
66
19
78
79
97
44
9
111. 1788
66
17
79
68
99
41
10
111. 2235W
66
20
78
75
99
46
11
111. 2214W
. 64
18
78
65
99
45
12
111.200
62
18
79
62
100
45
13
Mo. 804
60
18
76
67
99
49
Average. . . .
66
18
79
70
99
44
B — Four-year averages, 1952-1955
i
111. 1851..
. 64
18
79
67
99
45
2
111. 1570
63
16
79
64
99
41
3
111. 1859
63
16
80
68
99
44
4
111. 1656
62
17
82
70
100
41
5
111. 1856
62
19
80
64
99
44
6
111. 1857..
. 62
19
78
70
99
46
7
U.S. 13
62
15
82
63
99
44
8
111. 1511
61
16
83
63
97
42
9
111. 1332
60
16
81
72
99
41
10
111. 1349
60
17
81
72
99
46
11
AES 805. . .
. 59
16
80
75
99
41
12
111. 1657
59
21
79
55
98
44
13
111. 1788
59
17
79
63
98
43
14
HI. 1849
58
20
76
78
98
43
15
111. 1852
58
18
76
68
99
45
16
111. 1539A.. ,
. 57
19
78
69
100
45
17
111. 1771
56
10
77
75
97
44
18
111. 1850
56
20
76
74
98
44
19
111. 2235W
56
20
77
71
99
46
20
111. 200
55
18
78
58
99
47
21
111. 2214W. .
. 50
18
76
58
99
44
22
Mo. 804
50
18
76
64
99
49
Average. ,
59
18
79
67
99
44
C — Three-year averages, 1953-1955
i
111. 1897 . .
. 57
15
79
54
99
41
2
111. 1570
56
15
79
55
99
41
3
111. 1859
56
16
80
63
99
44
4
111. 1851
55
17
79
60
99
45
5
111. 1896
55
15
83
58
98
40
6
111. 2246W . .
. 55
15
80
60
99
42
7
111. 1332
. 54
16
80
68
98
40
8
111. 1511
54
16
83
59
96
42
9
111. 1656
54
17
80
63
100
42
10
111. 1788
53
17
78
57
98
43
11
111. 1856. .
. 53
18
79
59
99
43
12
111. 1857
53
19
78
63
98
45
13
111. 6076
53
15
80
43
99
41
14
U.S. 13
53
15
81
54
99
44
15
AES 805
52
15
80
69
99
40
(Table is continued on next page)
26
BULLETIN No. 597
Table 11. — Continued
[January,
Rank
in Entry
yield
Acre Mois- E t
. ij ture in Shelling _!„_<
yleld grain plants
Stand
Ear
height
Dropped
ears
C — Three-year averages, 1953-1955 (concluded)
Int.
perct.
perct
perct.
perct.
in.
perct.
16
111. 1893 . .
. 52
17
78
71
99
44
17
111. 1349
51
17
80
65
99
46
18
111. 1852
50
18
75
61
100
45
19
111. 1657
49
21
79
48
98
44
20
111. 1539A
48
18
78
60
100
45
21
111. 1849 . .
48
20
76
74
98
43
22
111.200
47
18
76
52
99
46
23
111. 1771
46
19
76
69
96
43
24
111. 2235W
46
19
77
65
99
45
25
111. 1850
45
20
76
68
98
44
26
111. 2214W. .
. 40
17
75
48
100
44
27
Mo. 804
40
18
75
57
99
48
Average. . . .
51
17
78
60
99
43
D — Two-year
averages,
1954-1955
1
111. 1851
60
18
79
41
99
40
0
2
111. 1856
59
18
81
43
99
40
1
3
111. 1657
58
21
81
26
98
41
0
4
111. 1857
58
19
79
48
98
41
3
5
111. 1349
57
18
80
52
99
42
2
6
111. 1570. .
. 57
17
79
35
98
37
2
7
111. 1656
57
18
80
45
100
38
1
8
111. 1852
57
19
77
45
99
41
0
9
111. 1859
57
16
79
46
98
40
1
10
111. 1893
57
16
78
57
100
42
2
11
111. 1896 . .
. 56
16
81
41
98
37
2
111. 1897
56
16
78
32
98
37
0
13
111. 1909
56
16
81
45
99
38
2
14
111. 2246W
56
16
79
41
99
39
3
15
AES805
55
16
79
55
99
37
1
16
111. 1332 . .
. 55
16
80
53
98
37
0
17
111. 1788
55
17
79
41
98
38
0
18
III. 1912
55
16
80
43
99
35
0
19
111. 1916
. 55
15
80
45
98
38
1
20
111. 1918
55
17
79
52
100
39
2
21
Mo. 8010W . .
. 55
20
79
38
100
44
0
22
111. 1511
54
17
82
41
96
38
2
23
111. 1539A
54
18
79
43
100
41
1
24
111. 1849
54
19
80
61
98
40
4
25
111. 1910
54
16
82
35
98
38
0
26
111. 1913. .
. 54
15
79
33
100
36
1
27
U.S. 13
54
16
79
35
98
40
1
28
111. 1771
53
19
79
54
95
39
0
29
111. 1850
53
20
79
54
99
41
1
30
111. 1914
53
17
79
45
99
38
0
31
111. 1919. .
. 53
15
78
53
98
37
0
32
111. 2235W
53
19
77
48
99
42
2
33
111.6076
53
16
79
22
98
37
1
34
AES 903W
52
18
73
38
100
36
1
35
111. 1905
52
16
76
36
100
38
2
36
111. 1906 . .
. 52
16
78
27
100
36
2
37
111. 1915
52
15
79
42
100
37
1
38
111. 200
51
19
78
30
99
43
1
39
111. 1908
51
16
77
33
100
37
1
40
111. 1911
51
18
79
42
100
40
0
41
111. 1917. .
. 50
17
78
39
98
37
3
42
111. 1904
49
16
77
39
99
38
0
43
Mo. 804
48
18
76
39
100
44
1
44
111. 2214W
44
17
74
23
100
41
1
Average. . . .
54
17
79
42
99
39
1
(Table is concluded on next page)
1956] EXPERIMENTAL CORN HYBRIDS: 1955 TESTS
27
Table 11. — Concluded
Rank
in Entry
yield
Acre
yield
Mois-
ture in
grain
Shelling
Erect
plants
Stand
Ear
height
Dropped
ears
E — 1955 results (4
replications)
Double crosses
bu.
perct.
perct.
perct.
perct.
in.
perct.
1 111.1856
... 70
19
80
27
100
49
0
2 111. 1851
68
21
78
29
98
48
0
3 111. 1349
67
19
82
23
99
51
3
4 111.1852
67
21
77
29
99
50
0
5 111.1893
67
18
80
43
100
53
3
6 111. 1896 . .
. 67
17
81
23
97
47
2
7 111. 1897
67
18
79
14
97
48
0
8 111.1912
67
17
81
28
99
46
0
9 111.1511
66
19
83
32
93
48
1
10 111. 1657
66
24
80
16
98
49
0
11 111.1916
. 66
16
80
32
96
48
1
12 AES805
65
18
80
37
100
47
1
13 111. 1849
65
22
81
41
96
50
3
14 111.1859
65
18
80
35
97
49
1
15 111.1909
65
16
81
40
98
48
1
16 111. 1910. .
65
16
81
20
97
49
0
17 111.1913
65
16
78
23
100
47
0
18 111.1915
65
15
80
28
100
48
1
19 111. 2246W
65
17
79
17
99
50
2
20 111.1570
64
19
78
23
97
48
3
21 111.1656..
. 64
19
80
31
100
47
0
22 111. 1857
64
21
78
28
98
51
2
23 111.1918
64
19
79
52
100
49
2
24 Mo. 8010W
63
22
80
21
100
56
0
25 AES903W
62
19
73
10
100
46
0
26 111. 1788. .
. 62
19
78
27
97
48
0
27 111.1905
62
17
76
18
100
48
2
28 111.1919
62
16
79
43
96
48
0
29 111.6076
62
17
78
9
99
46
0
30 U.S. 13
62
17
80
22
97
50
0
31 111.1332..
. 61
18
78
43
97
46
0
32 111. 1539A
61
20
80
19
100
53
2
33 111. 1850
61
23
80
34
99
52
2
34 111.1906
61
17
77
9
100
46
0
35 111.1908
61
16
76
13
100
48
0
36 111.1917..
. 61
18
78
28
97
46
1
37 111. 2235W
61
18
78
21
98
54
0
38 U.S. 523W
61
19
76
10
100
50
0
39 111. 1771
59
21
79
32
97
48
0
40 111. 1914
59
18
77
24
99
47
0
41 111. 200. .
. 57
21
78
17
99
56
1
42 111. 1911
57
19
80
26
100
50
0
43 111. 2214W
57
19
75
11
100
53
0
44 Tenn. 3742W
57
23
76
23
96
49
0
45 111. 1907
55
18
74
18
100
49
3
46 111. 1904. .
. 52
18
77
30
98
50
0
47 111. 6021
52
17
75
22
100
56
0
48 Mo. 804
50
20
76
19
100
52
0
Average
62
19
79
25
98
49
1
Single cross
Hy2XOh7
70
18
80
23
98
48
0
28
BULLETIN No. 597
[January,
Table 12. — THREE-WAY AND DOUBLE CROSSES
OF ILLINOIS 448 MATURITY
Tested in South-Central Illinois, 1955
(Data in boldface were not statistically different
from the best performance for that characteristic)
Code Entry A™
ture in f
grain
fedlfa,
; plants
Stand
Ear
height
Dropped
ears
A — Inbred lines crossed with (38-11 XK201)
bu.
perct.
perct.
perct.
perct.
in.
perct.
i
R71A. .
... 60
17
77
24
100
52
0
2
R74
74
20
78
11
99
51
0
3
R75
71
17
80
14
100
49
3
4
R83
66
17
82
8
99
51
0
5
R84
63
18
80
10
100
61
3
6
R89 . . .
76
20
81
8
100
58
1
7
R101
73
17
79
7
99
52
0
8
R105
66
23
80
9
100
58
1
9
R109B
65
17
82
4
97
48
0
11
R118
71
20
78
10
99
64
2
12
R127...
73
19
82
4
100
53
1
13
R128
72
16
83
7
100
53
0
14
R129
76
20
80
12
100
46
0
15
R154
72
18
82
5
98
53
0
16
Mo9150
75
22
80
17
100
54
0
17
Mo0221 . . .
. 76
20
78
4
99
62
0
19
Mo01930....
66
18
78
11
99
55
1
20
Mo01260....
66
21
81
11
100
54
3
21
Mo01268....
67
21
82
7
97
56
1
22
Mol918
62
16
80
20
97
49
0
Average , . .
70
19
80
10
99
54
1
B — Inbred lines
crossed
with
(K55XH28)
23
K64...
55
21
77
3
99
50
0
24
CI.64
71
20
81
0
97
48
0
25
Ky49
67
22
73
9
99
48
1
26
CI.49A
78
20
78
17
100
52
2
27
CI.49B
62
23
76
19
100
54
0
28
Mo21A. .
. 61
24
81
7
80
60
0
29
Mo9187W. . .
73
19
79
12
99
46
0
30
K723
75
20
78
2
99
51
0
31
K731
67
25
78
0
92
51
0
32
K734
57
20
81
6
87
47
0
33
K735...
. 75
22
76
8
98
49
1
34
K738
70
20
77
3
99
51
0
35
K739
75
19
80
2
95
54
0
36
K745
78
25
81
0
100
56
0
37
K693
53
20
76
10
100
43
1
38
K694...
. 56
17
78
7
97
42
0
39
K697
76
23
75
5
97
41
1
40
K755
64
18
76
14
98
44
0
Average. . .
67
21
78
7
96
49
0
C — Double crosses
41
AES805.. .
. 76
17
79
18
100
44
1
42
111. 1850
74
21
79
11
96
54
0
45
111. 1919
74
17
81
19
98
44
0
46
Ind. 909A...
71
19
80
4
99
52
0
49
U.S. 620W..
68
18
79
5
95
50
0
44
111. 1913. .
68
16
79
13
99
48
0
48
U.S. 619W. .
67
18
79
13
95
50
2
47
U.S. 523W..
66
19
77
6
100
49
o
18
111. 1332
66
17
80
13
100
49
o
10
111. 1570
64
18
80
6
98
49
o
43
111. 1852
64
20
79
22
100
51
2
Average
70
18
79
12
98
49
0
1956] EXPERIMENTAL CORN HYBRIDS: 1955 TESTS 29
Table 13. — AVERAGE PERFORMANCE OF INBRED LINES
AS MEASURED IN SINGLE CROSSES'
(Comparisons can be made only within each section)
Rank in •&_.
yield
Acre
yield
Mois-
ture in
grain
o-n* ££ hSSt
Dropped
ears
A — 111. 1277 maturity
(summarized
from Table
3)
1
8
•
4
5
0
7
8
9
10
R169
bu.
101
100
93
91
90
89
87
85
83
78
90
perct.
27
27
26
27
26
28
26
25
27
24
26
perct.
80
79
78
80
79
79
79
78
78
78
79
perct.
64
81
67
72
56
65
69
70
76
47
67
in.
51
49
51
47
48
47
51
48
47
51
49
perct.
2
2
3
2
2
1
4
2
3
4
2
R168
R163
R166
R162
R165
R161
R129
R159
R170
B — U. S. 13 maturity
(summarized
from Table
7)
1
%
8
. 4
&
0
7
8
9
10
R168. . .
. 93
17
17
17
16
16
17
17
17
18
17
17
84
83
85
84
85
83
84
84
83
82
84
35
25
15
32
11
20
8
18
16
7
19
43
48
48
45
46
43
43
43
46
45
45
0
1
0
1
1
0
0
0
0
1
0
R163
. 85
R169
82
82
78
76
R159
R161
R129
R166
. 75
R165
71
R162
. 59
R170
. 54
76
C — U. S. 13 maturity
(summarized
from
Table
10)
1
8
' 8
4
5
0
7
R163. . .
. 96
17
18
17
17
17
17
18
17
82
83
83
82
83
82
82
82
54
81
51
62
72
70
60
64
48
44
45
44
47
45
44
45
2
3
3
1
4
1
3
2
R71
94
R129
. 92
R168
. 92
R105
88
R101 .
88
R74
87
Average
91
• Calculated for each inbred by averaging the performance of single crosses in which it was
one of the parents.
30 BULLETIN No. 597 [January,
Table 14. — DOUBLE-CROSS HYBRID NUMBERS,
PEDIGREES, AND INDEX TO TABLES
Hybrid Pedigree Table No.
Illinois hybrids
21 (Hy2 X 187-2) (WF9X 38-11) 2ABCDE, 4E, 6ABCDE
101 (M14XWF9)(187-2XW26) 2ABCDE
200 (WF9X38-11)(L317XK4) 11ABCDE
274-1 (Hy2XWF9)(Oh7X 187-2) 4ABCDE, 6ABCDE
972A-1 (Hy2XL317)(WF9XOh7) 4ABCDE, 6ABCDE
1091A (Hy2X 187-2) (M 14 XWF9) 2ABCDE
1277 (M14XWF9) (1.205X187-2) 2ABCDE, 3B, 4ABCDE
1279 (M 14 XWF9)(A375X 187-2) 2ABCDE
1280 (M14XWF9)(Os420X 187-2) 2ABCDE, 4ABCDE
1281 (M14XWF9)(A374XA375) 2ABCDE
1289 (M 14 XW22)(WF9X 1.205) 2ABCDE
1290 (M 14 X 187-2) (WF9X 1.205) 2ABCDE, 4ABCDE
1332 (Hy2XOh7)(WF9X 38-11) 4ABCDE, 6ABCDE, 7B,
10B, 11ABCDE, 12C
1349 (38-llXMo940)(K155XK201) 11ABCDE
1375 (M14XWF9)(N6XOh51A) 2ABCDE
1421 (Hy2XWF9)(P8XOh7). . 6ABCDE
1493 (WF9X 1.205) (OH28XW22) 2ABCDE
1511 (Hy2XWF9)(38-llXL304A) 4ABCDE, 6ABCDE,
11BCDE
1539A (38-11 XCI.7)(K201XCI.21E) 11ABCDE
1555A (WF9XOh51A)(I.224XOh28) 2ABCDE, 4ABCDE
1557 (M14XOh28)(I.205XOh51A) 2ABCDE
1558 (M14XWF9) (1.205 XOh28) 2ABCDE
1559B (M14XOh28)(WF9XOh51A) 2ABCDE
1560A (WF9XOh51A)(I.205XOh28) 2ABCDE, 4ABCDE
1570 (Hy2XOh41)(WF9X 38-11) 4ABCDE, 6ABCDE, 7B,
11 ABODE, 12C
1575 (M14XWF9)(L12XOh28) 2ABCDE, 3B, 4ABCDE
1579 (M14XOh43)(A73XOh5) 2ABCDE
1585 (M14XL289)(Oh5XOh43) 2ABCDE
1595 (WF9X 1.205) ( 187-2 XW22) 2ABCDE
1617 (WF9XB10)(Oh7XOh41) 4ABCDE
1656 (C103XHy2)(WF9X 38-11) 11ABCDE
1657 (K4XOh7)(K20lXCI.21E) 11ABCDE
1759 (WF9X38-ll)(Oh4CxOh45) 6ABCDE
1760 (WF9X38-ll)(Oh29XOh45) 4ABCDE
1764 (Hy2XWF9)(38-llXJ47) 6ABCDE
1767 (Hy2XOh45)(WF9X 38-11) 6ABCDE
1771 (Oh7BXCI.7)(T8XCI.21E) 11ABCDE
1777 (Hy2XWF9)(R114XR116) 6ABCDE
1788 (WF9X38-ll)(Oh41XCI.21E) 6ABCDE, 11ABCDE
1799 (M14XWF9)(B8XOh51A) 2BCDE
1800 (M14XWF9)(A73XA295) 2BCDE
1802 (M14XWF9)(A295XOh51A) 2BCDE
1813 (C103XOh45)(Hy2XWF9) 4BCDE, 6CDE, 7B
1814 (Hy2XWF9)(M14XOh45) 4BCDE
1819 (R2XWF9)(R61XOh43) 4BCDE
1826 (WF9XB35)(K237XOh45) 4BCDE
1831 (WF9XW146)(K237XOh45) 4BCDE
(Table is continued on next page)
1956] EXPERIMENTAL CORN HYBRIDS: 1955 TESTS 31
Table 14 — Continued
Hybrid Pedigree Table No.
Illinois hybrids (continued)
1849 (C103X38-11)(K201XCI.21E) 11BCDE
1850 (C103XCI.21E)(38-11XK201) 11BCDE, 12C
1851 (C103X38-ll)(Oh7XCI.21E) 11BCDE
1852 (C103XCI.21E)(38-llXOh7) 11BCDE, 12C
1856 (38-11 XOh7)(K201XCI.21E) 11BCDE
1857 (38-llXOh41)(K201XCI.21E) 11BCDE
1859 (38-llXOh7)(Oh41XCI.21E) 11BCDE
1861 (M14XWF9)(I.224XOh28) 2CDE
1862 (M14XWF9)(Oh43XOh51A) 2CDE
1863 (M14XWF9)(I.205XOh43) 2CDE, 4CDE
1864 (M14XWF9)(Oh43XW22) 2CDE, 4CDE
1865 (M14XWF9)(Oh5XOh43) 2CDE
1866 (M14XWF9)(Oh26AXOh45) . .2CDE
1868 (Cl03XOh43)(Hy2XWF9) 4CDE
1873 (C103XM14)(R75XOh43) 4CDE
1875 (C103X38-ll)(Hy2XWF9) 4CDE
1876 (R97XR98)(WF9X38-11) 6CDE
1877 (R99XR100)(WF9X38-11) 6CDE
1880 (R103XR104)(WF9X 38-11) 6CDE
1884 (C103XR100XWF9X38-11) 6CDE
1889 (C103XOh45)(38-llXOh29) 6CDE
1890 (C103XOh45)(R75X38-ll) 6CDE
1893 (C103X38-ll)(Oh7BXOh29) 11CDE
1896 (R138XR139)(R140XR141) 6CDE, 11CDE
1896A (R139XR141XR138XR140) 5C
1897 (R138XR141XR139XR143) 11CDE
1902A (R138XR142XR139XWF9) 2E, 5C, 6E
1903 (M14XWF9XR119XR120) 2DE, 4DE
1904 (R81XR85)(WF9X38-11) 4DE, 6DE, 11DE
1905 (R81XR120)(WF9X 38-11) 4DE, 6DE, 11DE
1906 (Hy2XWF9)(R81XR119) 4DE, 6DE, 11DE
1907 (R155XR156)(WF9X38-11) 4E, 6E, HE
1908 (R154XR155)(WF9X38-11) 4DE, 6DE, 11DE
1909 (R130XR151)(WF9X38-11) 4DE, 6DE, 11DE
1910 (R154XR156)(WF9X 38-11) 4DE, 6DE, 11DE
1911 (R130XR153)(WF9X38-11) 4DE, 6DE, 11DE
1912 (R151XR156)(WF9X38-11) 4DE, 6DE, 11DE
1913 (R151XR154)(WF9X38-11) 4DE, 6DE, 11DE, 12C
1914 (R153XR155)(WF9X38-11) 4DE, 6DE, 11DE
1915 (R151XR155)(WF9X38-11) 4DE, 6DE, 11DE
1916 (R130XR154)(WF9X38-11) 4DE, 6DE, 11DE
1917 (R153 XR1 54) (WF9X 38-11) 4DE, 6DE, 11DE
1918 (R151XR153)(WF9X38-11) 4DE, 6DE, 11DE
1919 (R130XR156)(WF9X38-11) 4DE, 6DE, 11DE, 12C
1920 (R71XR105)(R75X 38-11) 5C, 8C
1921 (R71XR105)(WF9X38-11) 5C, 8C
1922 (Hy2XWF9)(R71XR105) 5C, 8C
1923 (R71XR113)(R75X38-11) 5C, 8C
1924 (R71XR113XWF9X38-11) 5C, 8C
1925 (Hy2XWF9)(R71 XR113) 5C, 8C
(Table is concluded on next page)
32 BULLETIN No. 597
Table 14 — Concluded
Hybrid Pedigree Table No.
Illinois hybrids (continued)
1926 (R71AXR74)(R75X38-11) 5C, 8C
1927 (Hy2XWF9)(R71AXR74) 5C, 8C
1928 (R75X38-11)(R98XR105) 5C, 8C
1929 (R98XR105)(WF9X 38-11) 5C, 8C
1931 (R75X38-11)(R98XR113) 5C, 8C
1932 (Hy2XWF9)(R98XR113) 5C, 8C
1933 (C103XR101)(Hy2XWF9) 5C, 8C
1934 (Hy2XR66)(R75X38-ll) 5C, 10B
1935 (C103XR101)(R75X38-11) 5C, 10B
1936 (Hy2XWF9)(M14XB14) 2E
1937 (WF9XOh45)(Oh28XW22) 2E
2214W (R30XKy27)(H21XK64) 11ABCDE
2235W (H21XK64) (33-16 XMo2RF) 11ABCDE
2246W (R144XR145)(R148XR149) 11CDE
2247W (R144XR145)(R146XR148) 2DE, 4CDE
6021 (R75XR76)(R84XK4) 4DE, 6DE, HE
6075 (R75XR83XR78XR87) 6CDE
6076 (R76XR78)(R87XR117) 11CDE
Miscellaneous hybrids
AES 510 (WF9XW22XH19XB9) 2DE
AES 512 (M14XWF9XB9XW22) 2BCDE
AES 610 (M14XA73)(Oh43XOh51A) 2BCDE
AES 702 (111. 1790) . . (C103XM14)(Hy2XWF9) 2ABCDE, 3B, 4ABCDE
AES 801 (WF9XB7)(B10XB14) 6BCDE
AES 802 (HyXWF9)(38-llXN6) 6BCDE
AES 803 (WF9X 187-2) (N6XK148) 6BCDE
AES 805 (111. 1770). .(C103XOh45)(WF9X38-ll) 4ABCDE, 6ABCDE,
11BCDE, 12C
AES 806 (HyXWF9)(N6XN15) 4DE, 6DE
AES 807W (H26XH27)(H28XH29) 6DE
AES 903W (H28XK55)(H30XK41) UDE
Ind. 909A (H21X 33-16) (K61XK64) 12C
Ind. 2609 (WF9X38-ll)(H14XOh43) 6DE
Ind. 4656 (WF9XP8)(H14XOh43) 4E
Iowa 4297 (M14X187-2)(WF9Xl.205) 4ABCDE
I.S.P. 2 (Cl03XOh45)(M14XWF9) 2BCDE
Minn. 511 (A73XA401)(A286XOh51A) 2E
Minn. CB 8504 (M14XW22)(Oh5XOh43) 2E
Mo. 804 (38-11 XCI.21E)(K4XCI.7) 11ABCDE
Mo. 8010W (K64XMo22)(TlllXT115) 11DE
Ohio M15 (AXW23)(Oh26XOh51) 2BCDE
Ohio K24 (WF9XOh51A)(Oh33XOh40B) 2ABCDE
Ohio 3247 (Oh43XOh45)(Oh51AXW22) 4DE
Ohio 4808 (Oh4CXOh51A)(Oh28XOh45) 6BCDE
Ohio 5305 (A73XOh5)(Oh26AXOh51A) 2DE
Tenn. 3742W HE
U.S. 13 (HyXL317)(WF9X38-ll) . . .6ABCDE, 7B, 8C, 11ABCDE
U.S. 523W (K55XK64)(Ky27XKy49) HE, 12C
U.S. 619W (K55XCI.64)(Ky27XKy49) 12C
U.S. 620W (H21X33-16)(K61XCI.64) 12C
(WF9XB14)(Oh28XOh43) 5C
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