. Plant propagation : greenhouse and nursery practice . Plant propagation. SEED TESTING 45 named. "Rubbish" impurities are of small consequence compared to weed seeds, especially if bad; for instance, a sample of clover '.)U per cent pure and with 99 per cent germination, would be unsatis- factory if it contained dodder. 5. What does the seed weigh? Generally heavy seeds within the limits of the species are best. 6. Are the seeds dry? Well-dried seeds keep best and give best results. 7. Where did the seeds originate? Seeds from some countries or even localities may be better or poore
. Plant propagation : greenhouse and nursery practice . Plant propagation. SEED TESTING 45 named. "Rubbish" impurities are of small consequence compared to weed seeds, especially if bad; for instance, a sample of clover '.)U per cent pure and with 99 per cent germination, would be unsatis- factory if it contained dodder. 5. What does the seed weigh? Generally heavy seeds within the limits of the species are best. 6. Are the seeds dry? Well-dried seeds keep best and give best results. 7. Where did the seeds originate? Seeds from some countries or even localities may be better or poorer than from others. 8. What percentage will germinate? And at what rate or "strength"? 9. What percentage are "hard" seeds? Perhaps this will not be considered as serious a question as formerly when the sulphuric acid method (47) comes into more general FIG. 38—SAND BOX SEED GERMINATOR The wires divide the surface into squares in which the seeds are placed. 74. Simple conveniences in seed testing include a ]30cket lens to examine small seeds; sheets of stout white paper or cardboard on which to spread seeds for examina- tion ; a spatula-like piece of hardwood, bone or celluloid to separate' the seeds; tweezers to pick out small seeds; a small scales for weighing phials of truly named culti- vated plant and weed seeds with which to compare seeds to be examined; gummed labels for numbering or nam- ing samples; blotting paper, strips of flannel, and clean sifted sand for germination tests. A small germinator may be made by wetting sand in a. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Kains, M. G. (Maurice Grenville), 1868-1946. New York : Orange Judd Company
Size: 2293px × 1090px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjectplantpropagation
