———— ik 523 [MMNNINNINNNN yor owe. THE SHL“ACTION OF SHED. Tre selection of seod for growing plants is 42 o1estion which has heen prominent in Apfricultural and Horticultural Societies for some years, and many ex- periments haves been conducted along this line. The expsriment station at Geneva, New York, has, from time to time, published the results of their ssed selections; and while they gonerally favored the selectim of large seeds, there was an occasional preference for the small. In 1885 an experiment with onion seed gave only a slight difference in favor of the large seed. Again, the same year, cabbars seeds were tried, when, to their surprise, tne smaller seeds gave tne larrar, sounder heads; cauliflower also pave preference for the small 89ed; but in both the plants wers from ten days to two wees later in maturing. In 1887 they tried an extensive expsriment with large and small oat seed, aid the results obtained were such as to warrant tho New York Station in making tne statement that "there was wisdom in planting selected seeds," JHESIS -D= This decision is not surprising, it corresponds with experiments made by others; among them Francis Galton's, the outcome of which he gave in a lecture refore The Royal Institution of England, Feoruary Oth, 1877, His exveriment was conducted by distributing the seeds to different farms in England, and having the results overtiumed to him for study. He stated that "the offspring did not tend to resemble the parent in size but to be smaller than the parent if the parent was largs, and to be larper than the parent if the parent Was small." His conelusion was based not only on this exporinent, but also on a close study of the maman family, and he laid down this law- "The mean filial regression towamis mediocrbty was directly proportional to the parental deviation from it.* Prof. B. T. Galloway, of the National Department of Arriculture, in an article printed in "American Gardening,*® September 26,1896, ma:es some valuable statements in regard to the planting of selected seed of the radish. By using large, uniform seeds the radishes matured early and the entire crop was marketable at the same time. In this manner he was able to get 90% of the crop at once and coming early into market hoe commamied top prices. The uniformity of the product allowed him to clear his fround immediately and prepare for a new crop. He stated further "Where seed, as ordinarily obtained in market, is used, about 35 per 94941 cent of the crop will reach mafketable size in from 36 to 40 days; 28 per cent will require 16 days longer; While the rest will probably never be worth anything. Prof. Galloway recommended that, in omer to separate the inferior seed and dirt from the large ses, a sieve be eonstructed.of "a circular piecs of thin sheet brass 6 inches in diameter, with holes 2/25 of an inch in diameter cut in it, the holes about 1/6 of an inch apart. The perforated sheet then provided with a rim of prass or tin 2 inches high." This makes a cup in which the seed can be put and the small ones, with the dirt, shaken through the holes, leaving only the large seeds in the dish. AS subject matter for this thesis the followings Oxys riment in seed selection was conducted during the Winter at the Collerze. Three grades or sizes of seed, larre, averaye, and small, were selected from the following sight garien Plants: radish, turnip, cabbage, lettuce, bset, tomato, onion, and carrot. One hundred of eacn sixe were taken, Making threes hundred seed from each of the above vege- tables. These wars divided into lots of 50 seeds each, that the expsriment might be duplicated; thus more near- ly obtaining an average result, and also establishing a check on the experiment. The seed was planted in six boxes; tow veing for larre seed, two for small, and two for the seed of averare size. This put 50 of each vind of seed in eacn box. Table I. Omer and Arrangement of the Seed as Planted Jan. 12,1809. Let= On—- Bset.Car- Cab= Tur= To- R2xI- tuce. ion. rot. bage.nip. mato.ish. Box I- Larvs seed- — —- — 50 50 50 50 50 50 5O 560 Box Il-Lurfe seed—- —- — — 50 50 50 £50 50 50 50 50 Box IlI-Averass seed - = 50 59 50 60 560 £50 - 60 50 Box IV-Averars seed—- — — 50 50 50 50 50 50 50 50 Box V-Small seed@—- —- —- = = 50 59 50 50 50 50 BO 50 Box VI-Small seed=— —- —- — 50 50 50 50 50 50 50 59 After a thorough mositening the boxes were placed in a forcing house with a temperature of about 560° F. The facts which were to be noted will be found in Table II. ist. Date of appearance above pround; 2nd. Numrer of days between planting and appearance above ground; 31d. Per cent of seeds germinated. Whenever it may appear, (a) Stands for the average, (1) large, and (s)small, each of these referrirns to the size of sced used. Table II. 7 marks those where the oer cent germinating from the large seed fell below those of the seed of averare size, Date of Numter of er cent Name. appearance days to ap- of above ground. pear apove seed £round. _. germinating. Radishes- (a)j- - - Jan. 14------ - Q- = = = ~90 " (lj- --- © 144---+--- OS 04 " (S)e_ --- © 1G - ---— - Se ee - @ 85 Turnips- (a)- --- © 24- ~~ —- —~—~12- - - = -40 " (lhe e=e- = © 236- -- - — ~ lli- - --- 50 " (sje = —-— * 27-2 ~~ ~ — - 16- - - - = 34 Cappage= (a)-=_-=|-=|= 8" 828----+--- 16—- —~ - — —26 " (ljze ee —- § Q2I- ~~ ~ - - - 15=—- --- 37 " (s}¥ ---—- * 8]----- ~ 19- - - —- = 15 Lettuce- (aje = -- * 16------ 4----+- 93 " (l} =--=—- " 16--+---- - —~4—--- - = 96 Bje ee =—- *§ 16---- - - 4-—---+-- 83 Bast- (ajee--——- * 1B -- -- —- G- - —- -£180 " (l)_ meee " 175 -- - - = 5B- - - —/150 « (s)» —-—-=—- © 17-2 - + - = = 5—- —- - — 128 Tomato- (aj —-~--=- * 19--+--- - Fo —~ —- —- —40 " (lje = —-_—_ * 19------ Fe --- = 50 " (B)—_ eee * 20- = - - - = 8- --- 34 Onion- (aj- --=- *" 20------ 8- ---- 60 " (l)je_ e--- *® 202 -- - - = B----- - 60 « (sje ee m- * 20---- - - -8- ---- 50 Carrot- (aj---- * S31------ 19- - - - #60 " (l)jp --- * 31------ 19- - - - #45 te (s)j- -=]-_=— * 81l----- = 19—- —-- — 30 -~C— The radishes appeared above ground in two days, the three different sizes sprouting at ‘bout tre sams tine; tre lettucs germinated in four days; beets, five days; Cabbage, sixteen days;carrots, nineteen days. The small seed sprouted last in every case, but was only noticeable to any extent in tre cabbage and turnip, where in both eases the small seed was three days later than the larre. Aftor tro appearance of the plants above ground the rrowth was noted carefully from day to day. February 6th, twenty-five days after planting, a careful estimate was made and it was foum tat the plants from the large Seed were better developed, being uniform in size and easily outclassing those in the otrer poxes. Of the plants from the sead of average sizé, there was a lack of regular- ity in frowth, and, as a rule, the number was less than from the large seed. The small seed produced tie least number, and to 211 appearances they were infirm in growth and vitality. Table III. Weights of 10 radishes from the different size seed. 10 radishes from small seed weifrhed 9 02. 20 " " averace size" " 14 OZ. 10 * large » * 19 OZ. These results were optained 26 days after planting, when the s2bove table shows that the plant growth was much in favor of larre seed. Krom Table II, showing the per cent of seed germinat— sd,we find that, with two exceptions, thse per cent of plants from tre larre s9ed is the greatest. With the peets and carrots tne seed of avserare size put forth the greatest number; but this mignt be explained by the fact that it was vary div’ficult to separate the seed. The per cent germinatine from the large and avrerace onion seed wes aad. But taring the crerminating test as a whole, the per cert was always least with the smaller secd, and trere was a decided preterence for larre s3ad. March lst, forty-seven iays after pianting, the tomato and. cabbare plants were taken from tre seed boxes, where they were corfined for space, and transplanted. ‘en Plants were taken from tre sseds of different size,makins thirty tomatoes and thirty cabvages. March 7th, of those which had been re-set the stems sent out from tre large ssed were in the lead, being at least 1/6 lavrer than those from the averare seed; inferior stems were found only among thors sent out by t'e smaller. Two weeks later the large ard averare plants were nearly equal, while the small ones were much the latest. The tomatoes did not differ in cize as moch as did the cabvage, but this was probably dus to the fact that the larver tomato plants had started flower buds. Maren 28th, the cabdbare an. tomatoes were weiprnsd, and trs results of the weirhing aro civen in Table IV. Table IV. Average Weight of the Tomato and Cabbarze plants in grams.. 4 cabbage trom large seed- - - = = 1-93 prams. 5 " averare ®*.~—- - - = 1.90 * 5 " small "--+--+---= 1.85 * 5 tomatoes * larre *.--+---- 8.50 5 " " average *" - - - - - 7.00 5 " * small wee - - = 6.00 The average was taxen of 5 plants in each case, with the exception of the cabbage from the large seed, where Only 4 were available. This table above gives a preference to selection of large seed in the cabbacs and tomato. Nine tomato plants were left growing, three from each sized seed, and April 6th buds had started on all of trem. april 12th two plants from the large seed and one from the average had oponed flower buds, but those from the small seed had not. The experiment closed April 2;th; the nine tomitoes remaining were cut, carefully weighed,and the buds and flowers counted. Table V. Number of Buds Produced,and Average Weight of Plants in Grams. No.of Buds. Av.Wt.inGrams. 3 tomatoes from larve seede —- —- 48 —- -~- = = = 3 1/3 3 " * average ®"§---4]----- 3 3 " * small we - - W-- --- 3 -~9— The plunts from the larse seed were superior in gfrowtn and had the greater number of buds and flowers; the plants from the average sizéd seed had nearly the Same number of buds, but were perhaps a we2k later; those from the small seed were equal to those from the average sized seed in growth, but were much later in de- velopment of buds, having only eighteen. The results which have b2en attained warrant us in saying that "plants from selected large seed are earlier in maturity; they have a greater plant growth and produce thse greater number of fruit buds." Men prominent in agricultural interests recommend a careful study of tre various experiments along this line. And when w92 consider the importance of seed in the growing of a uniform crop to early maturity, and the larce amount of money expended annually by farmers and gardaners in our State alone, for the growing of farm and Farden products, we can readily unferstand what is to be cained by the selection of perfect s9ed, and the loss occasioned by the planting of worthless and impure seed. With the results of tre various seed experinents in mind it is well for a person to be guided in his selec- tion of seed py 1 few general rules. 1lst.— Select a desirable vaktiety of ssced and satisfy yourself tnat it is true to name. ~lO0— and.=- Test the germinating power and insist on the seed baing standard. 3Mde— Select the lsrgve ssed by means of a seed separa— tor. in some casss the smail and inferior seed cannot be separated, but the farner must use his judgment. If tre grower will follow these threo steps, they will insure him a profit which will command a food market; his crop will be uniform on the ground from having tested the germinating power, and he can harvest the entire field at once, which will be less expensive and at the same tine the ground is made ready for the next crop. -lLle Peas Affected by the Pea Weevil. In connection with the experiment in seed selection there were some pea s9eds containing the pea weevil. The seed was planted to show the evil effedts of the work of the weevil on germination. Fifty seed which had been enterseé by the weevil were selected, also fifty which hod not. These were planted in rows, and all had the same care. Of the fifty which appeared sound, 438 germinated in five days, the other 7 did not develop beyond a slirht swelling, due, no doubt, to the moisture in the soil. Of the fifty containing the weevil, none developed Or showed any sign of rerminating, and they swelled but slightly. The peas which were affected were badly so, and there is no wonder that they failed, but it is our opinion that, if tre weevil has not eaten in to the canlide, the pea, although defective and liable to decay, may retain vitality sufficient to germinate. Z aa _ ie! »S Coe. ~€°, _ ee ee . Ti BEER: SE = EEF “oe ey TO 46 9724