. Plant propagation : greenhouse and nursery practice . Plant propagation. SEED TESTING crop, perhaps even for several years, due to the introduction of weeds. E. Damage caused l)y introduction of new weeds, which may spread over the farm or the district. F. Loss due to insect and fungous pests introduced with the seed. A. Direct loss following the pur- chase of low-grade seeds may be due to one or both of two factors: (1) reduced quantity of seed true to name, and (2) poor germinating capacity of the seeds. Usually low quality seeds are poor in both ways. B. When truly high-class samples of s
. Plant propagation : greenhouse and nursery practice . Plant propagation. SEED TESTING crop, perhaps even for several years, due to the introduction of weeds. E. Damage caused l)y introduction of new weeds, which may spread over the farm or the district. F. Loss due to insect and fungous pests introduced with the seed. A. Direct loss following the pur- chase of low-grade seeds may be due to one or both of two factors: (1) reduced quantity of seed true to name, and (2) poor germinating capacity of the seeds. Usually low quality seeds are poor in both ways. B. When truly high-class samples of seed are bought, less seed is need- ed for a given area than when low- grade samples are used. When a low-grade sample is sown unwitting- ly, the result may be a poor stand, which may be overcome by strong growing weeds, many of which may have been introduced with the seed. Sometimes the whole field may have to be plowed and re-sown, thus causing loss of cultivation, one lot of seed and much time, the last, per- haps, most serious, except the equiv- alent loss of money. C. The loss due to parasites may be calculated from the statement by M. Marre that a single dodder stem may spread so rapidly in three months as to kill clover or alfalfa on an area of about .30 square yards! By experiment, dodder seed has been found to germinate when only half ripe! The seeds of the dodder and broom rape may lie dormant in the soil for several years. D. Introduced weeds may make necessary extra cultivation as well as extra cleaning of the se^d crop. E. See comment above (F). F. See comment above (C). On every count, therefore, low-. FIG. 34— POTTING ROOTED GERANIUM 1. Ready to fill. 2. Filling in grade seeds are undesirable at any soil. 3. Firming in 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. (Mauric
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Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjectplantpropagation
