. Plant propagation : greenhouse and nursery practice . Plant propagation. 44 PLANT I'UOrAGATION FIG. 35âSMALL SCALE SEED TESTING s price. Low price is almost surely an index of low quality. 73. Questions to consider in testing seed i. Is the seed to be purchased truly named? If not, it should be refused. Seed pur- porting to be Trifolium re- peiis (white clover) but really T. parviflorum (a worthless clover species) should be re- fused and the seller perhaps sued for fraud. Species can usually be identified, but va- rieties must generally be grown before they can. 2. Is the seed fresh or old?
. Plant propagation : greenhouse and nursery practice . Plant propagation. 44 PLANT I'UOrAGATION FIG. 35âSMALL SCALE SEED TESTING s price. Low price is almost surely an index of low quality. 73. Questions to consider in testing seed i. Is the seed to be purchased truly named? If not, it should be refused. Seed pur- porting to be Trifolium re- peiis (white clover) but really T. parviflorum (a worthless clover species) should be re- fused and the seller perhaps sued for fraud. Species can usually be identified, but va- rieties must generally be grown before they can. 2. Is the seed fresh or old? Old seeds may be treated to make them look fresh, but that won't put life in them. When mixed with new seed they reduce the value because they are probably dead. This trick of the trade is far less practiced than formerly. It constitutes a fraud and is pun- ishable by law. Mere number of years does not necessarily make seed "; Some seeds (see table p. 49) retain vitality ten or more years. They properly de- serve still to be called "fresh" if they germinate well. Repu- table seedsmen, after testing their "returned" seeds offer the good samples for sale again. This is perfectly legitimate. 3. Has a cheaper seed been mixed with the desired kind? a, galvanized iron earth tray; a, i ellow trefoil seed SUperhcially plants in pots; B, water tank filled by resembles, and is sometimes used funnel, F; C, chamber heated by lamp, to adulterate, red and alsike °' ''â *=' "'â â '"'"''"⢠^' â â «'n<'^'^''le top. , clovers and alfalfa. Cock's-foot grass seed may be adulterated with meadow fescue or perennial rye grass and charlock seed, per- haps baked to kill it so its seed- lings will not betray the fraud, may be mixed with cabbage, rape and similar seeds. 4. How pure is the sample? The percentage of seeds true to name is of great importance. The impurities should be identifiedâ FIG. 37âSIMPLE PROPAGATING
Size: 1881px × 1328px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjectplantpropagation
