OK -«(55 V'V y iX- 3^K Ann R|t. )^n J W SAPIENTIA UNIVERSALIS EX LIBRIS UNIVERSITY OF NEWHAMP5HIRE EXPERIMENT STATION LIBRARY CLASS (j '^ ^ ^T 3 NUMBER hi 5 ^ 1^ UuVl tJ iJi 1 ■ i'- '^ 3 ACCESSION ^i S S C I M "ta C -l-J i RESULTS OF SEED TESTS Made July 1, 1925 to June 30, 1926 Four hundred and seven samples of seeds have been tested for purity and germination this year. Three hun- dred and sixty-nine of these have been completed for the State Department of Agriculture on samples collected more or less indiscriminately about the State for the purpose of verifying their guarantees for purity and germination, and of making sure that all seed sold in New Hampshire carries such guarantees and other in- formation on the container as are prescribed by law. The results of this official work are shown in this bul- letin. Samples submitted for private tests are not made public. Biological response, or reaction, to natural, or arti- ficial environment changes is subject to considerable variation and the germination of seeds is no exception. No two samples of the same seed will necessarily germ- inate exactly alike either in a natural, well adapted soil or under the best artificial conditions that science can devise for the laboratory. Consequently, much duplica- tion and great care in sampling and counting is nec- essary to arrive at a satisfactory average figure. Under the limitations of time and space necessarily imposed on any laboratory procedure, it seems advisable to allow considerable variation between any given set of findings at any given time and place and those found elsewhere at another time. Our inspection and investigation work assumes that a given sample may manifest the following variations from the guarantee which it carries for germ- ination and still comply with the state law and support the good intentions of the merchant who attached the guarantees. This table is based on the research work of the Association of Official Seed Analysts of North America and is recommended in their rules. 3 N. H. EXl'EEIMENT STATION. Germination in Per Cent. Allowable Variation 90 and over 6 80 or over, but less than 90 7 70 or over, but less than 80 8 60 or over, but less than 70 9 Less than 60 10 Purity testing work, in wliich the sample is separated into pure seeds, other crop seeds, weed seeds, and inert material, also involves some variation due to normal and unavoidable small errors tending always to prevent any two samples or separations from being exactly alike. The variations in this case, however, are much less than are to be expected in germination and are provided for by a formula. This purity tolerance formula, so-called, considers the sample as made up always of two parts, (1) the element, or component part, being considered and (2) the rest of the sample. The tolerance, then, in per cent, allowed for each component part shall be : two tenths of one per cent, plus 20 per cent, of the lesser part. This formula to be applied to the analysis that is guaranteed. If a sample is guaranteed to germinate 90 per cent. and to be composed of 90 per cent, pure seed, it can average in our laboratory tests, according to this inter- pretation, between 84 and 96 per cent, germination and between 87.82 and 92.18 per cent, of pure seed and still be "satisfactory." If we have found the sample better than the highest figure for variation allowed, it is marked "above" in this bulletin, if lower than the low- est figure for variation allowed, the actual figure is re- ported. From the summary table at the end it will be ob- served that large proportion of the seeds collected this year is satisfactory in both purity and germination, a small number is below, and a still smaller group in each case is above the variations allowed. In actual figures KESULTS OF SEED TESTS, 1926 3 88.9 per cent, of all samples are satisfactory or better in purity, and 87.3 per cent, are satisfactory^ or better in germination. A few samples were collected and tested as early as March this year and practically all samples were com- pleted and reported on special blanks to the respective dealers by the first of July. It is our aim to do the testing as fast as possible after the seed is on the market, and those merchants who receive their supplies of seed as early as March wiU confer a favor by notifying the State Department of Agriculture in order that the seed may be sampled and the tests completed early. N. H. EXrERIMENT STATION, SEED EXAMINATION, 1926. Purity Germination Sam- Kind of Seed, Brand, Name I ple No. and Address of Dealer F'nd 1 Guaran- teed 1 F'nd Guar- anteed 6019 Alfalfa (28497, Hardy North- W€stem) S 99 S 90 Holbrook Grocery Co., Woodsville 6055 Alfalfa" {Certified Canailian^ Grimm) H. G. Holton Co., Lancaster S 99.30 A 88 5750 Alfalfa (Grimm) s 99.75 S 92 Manchester Hardware Co., Man- chester 5749 Alfalfa (2824) s 99.14 S 94 McQuesten & Lewis, Manchester 5816 Alfalfa (27237, Pedigreed Grimm) MeiTimack Farmers' Exchange, Exeter A 99 94 5868 Alfalfa (27288, Grimm) Merrimack Farmers' Exchange, Concord A 99 S 94 5754 Alfalfa {Pan American) s 99.50 S 90 J. J. Moreau & Son, Manchester 5802 Alfalfa {Eureka) S 99.50 s 90 F. W. Neal, Dover 6011 Alfalfa {Grimm, Certified) Pike & Gale, Littleton S 99.50 s 90 6012 Alfalfa {Pan American) Pike & Gale Littleton S 99.50 A 88 5922 Alfalfa {Pan American) S. A. Schurman & Son, Ports- mouth S 99.50 S 90 5735 Alfalfa (27245-3-4. Grimm) J. H. Seavey, Dover s 99.04 S 95 5661 Alfalfa, (Grimm) s 99.50 s 93 John B. Varick Co., Manchester 6074 Alsike {Pine Tree) A 97.50 s 93 Annis Grain & Lumber Co., Londonderry 5707 Alsike {Imperial) A 97.60 A 86 Ayers & Jenkins, Rochester 5992 Alsike {Pan American) Chase Grain Co., Plymouth S 97.50 76 90 5740 Alsike (Imperial) s 97.60 A 86 Freeman Corson, Rochester 5692 Alsike (Pan American) Eugene C. Foss Co., Rochester s 97.50 S 90 5830 Alsike 94.66 97 S 86 Hilliard & Kimball, Exeter 5711 Alsike 95.02 97.50 S 90 Jenness Hardware Co., Dover 5753 Alsike (Ace) s 95.55 s 85 Manchester Hardware Co., Man- chester 5745 Alsike (2161, Pine Tree) McQuesten & Lewis, Manchester S 97.65 s 94 5636 Alsike (2164) s 96.35 s 92 Merrimack Farmers' Exchange, Concord 5814 Alsike (2164) s 96.35 s 92 Merrimack Farmers' Exchange, Exeter 5901 Alsike (21697. Ace) S 96.90 s 90 J. H. Morrill, Laconia A=:Above. S^Satisfactory. EESULTS OF SEED TESTS. 1926 SEED EXAMINATION, 1926 — Contirmed. Sam- ple No. Kind of Seed, Brand, Name and Address of Dealer Purity Germination F'nd Guaran- teed 5670 Alsike (Pan American) Nashua Grain Co., Nashua 5788 Alsike . Pelletier Bros., Parmington 6010 Alsike (Pan American) Pike & Gale, Littleton 5857 Alsike (Pa)i American) O. A. Plummer, Tilton 5859 Alsike (35C2) O. A. Plummer, Tilton 5858 Alsike Ned C. Rogers, Tilton 5937 Alsike (Pan American) S. A. Schurman & Son, Ports- mouth 5733 Alsike (21220, Ace) J. H. Seavey, Dover 5848 Alsike Shepard Grocery Co., Franklin 6006 Alsike (21279, Pine Tree) Frank Smith Co., Colebrook 5727 Alsike (3256) Somersworth Grain Co., Somers- worth 5640 Alsike (Pine Tree, 2184) John B. Varick Co., Manchester 5820 Alsike (2127) W. A. Young, Exeter 5913 Barley (Oderbrucker) Belknap County Farmers' Ex- change, Laconia 5702 Barley (6-row State) Eugene C. Foss Co., Rochester 6067 Barley (2-row Montana) J. H. Griffin, Newmarket 6022 Barley (6-row Monadnock) Hoibrook Grocery Co., Woodsville 6051 Barley (6-row) H. G. Holton Co., Lancaster 5714 Barley (6-row, 7176) Jenness Hardware Co., Dover 5970 Barley (6-row, 71315) Meredith Grain Co., Meredith 5866 Barley (6-row, 7174) Merrimack Farmers' Exchange, Concord 5771 Barley (6-row State) J. J. aioreau & Son, Manchester 5910 Barley (6-row. 7118) J. H. Morrill, Laconia 5811 Barley (2-row) F. W. Neal, Dover 6050 Barley (6-row, 7182) D. A. Noves & Son, Colebrook 5931 Barley (2-row) S. A. Schurman & Son, Ports- mouth 5712 Barley (2-row, 7169) J. H. Seavey, Dover 95 S S s I .27 S I S I A I S I I S I s s s s s s s s s s s s s s s s s 97.50 97 97 97.50 97 98.50 97 95 97.80 98.65 94.11 98 97.80 97.60 98 97 98.16 98 99.05 99 99.65 98 98.20 98 98.86 98 99.18 F'nd I Guar- I anteed S S A S A S s s s s s s s s s A s s s s 91.5 s s s 90 90 90 90 S I 94 S I 90 90 92 93 93 97.50 93 93 92 90 96 97 90 97 96 92 90 92 95 90 95 A=Above. S^Satisfactory. X. H. EXPERIAIEXT STATIOX, SEED EXAMINATION, 1926— Continued. Sam- ple No. Kind of Seed, Brand, Name and Address of Dealer Purity Germination F'nd I Guaran- I teed F'nd I Guar- I anteed 5847 6003 5882 5646 5G58 5838 5836 5716 5759 5870 5942 5761 5757 5917 5924 5912 6021 5968 5869 5758 5807 6034 5927 5939 Barley (6-row) Shepard Grocery Co. Franklin Barley (6-row Frank Smith Barley (6-row. Thompson & Barley (e-row, 7183) Co.. Lancaster 7176) Concord Manchester Manchester Hoague, 61001) John B. Varick Co., Barley (6-row) John B. Varick Co., Barley (6-row, 712) W. A. Young, Exeter Bluegrass (Kentucky) & Kimball, Exeter (Kentucky) Hardware Co., Dover (Kentucky, 032594) . . Hardware Co., Man- Hilliard Bluegrass Jcnness Bluegra.ss Manchester Chester Blue.erass (Kentucky, 032571) ... Thompson & Hoague, Concord Buckwheat S. A. DoAV & Son, North Hamp- ton Buckwheat (Japanc.ie, 7650) .... Manchester Hardware Co., Man- chester Buckwheat J. J. Moreau & Son, Manchester Buckwheat (4390) J. H. Morrill, Laconia Buckwheat (Japanese) S. A. SchuiTTian & Son, Ports- mouth Canada Field Peas Belknap County change, Laconia Canada Field Peas Holbrook Grocery Woodsville Canada Field Peas Meredith Grain Co.,- Meredith Canada Field Peas (08559) Merrimack Farmers' Exchange, Concord Canada Field Peas J. J. Moreau & Son, Manchestei Canada Field Peas P. W. Neal, Dover Canada Field Peas (85100) D. A. Noyes & Son, Colebrook Canada Field Peas (Wlnte) S. A. Schurman & Son, Ports- mouth Canada Field Peas S. A. Schurman mouth Farmers' Ex- (85104) ... Campany, (Frincr/) & Son, Ports- S S S S A S S 67.69 S S s s s s s s s s s s s s 99 99.82 99.65 99.50 97.50 98.70 82.50 85.00 75.30 80.50 98 99.83 97 99 98 99 99.50 98 99.50 98 98 99.50 98 98 S S S S s 81 s 71 s s s s s s s s A s s s s 97 95 92 95 98 94 30 85 65 61 90 94 90 95 90 99 90 90 86 90 95 90 90 90 A=:Above. S=Satis£actory. RESULTS OF SEED TESTS. 1926 SEED EXAMINATION, 1926 — Continued. P urity Germination Sam- Kind of Seed, Brand, Name ple No. and Address of Dealer F'nd Guaran- teed 1 F'nd Guar- anteed 5734 Canada Field Peas (o u "5 r-t •-1 c3 3 M o >> o OOt-CC. T)^00lOC0OTJ(1-IOl.'::'-ICCCJT-^OO,-J^HC0t:- ■OS P, l— fCvJrH THTfrH Ti o •J. CJ O C c C3 O) C o IM-Jli-IOOCOC^Oi-IOOCCOOOOO'HOtt'-lrHO CO ^ O 5 Alfalfa Alsike Barley Bluegr Buckw t3 oi o Mangle Millet Oats Or char Rape Red C Red Tc Rutaba Rye Soy B Sweet Sudan Timoth Vetch