. The botany of crop plants; a text and reference book. Botany, Economic. LEGITMINOS^ 445 "automatic" tripping. Humidity and temperature condi- tions are probable causative factors in automatic tripping. Both . self- and cross-pollination are effective in alfalfa. tripped. Fig. i88.—Pollination of alfalfa. A, flower untripped with calyx and standard removed; B, same tripped; C, position of staminal tube untripped and tripped. {After U. S. Deft. Agri.) Self-pollination usually results from automatic tripping. It is known that good seed crops are produced in regions where tripping inse
. The botany of crop plants; a text and reference book. Botany, Economic. LEGITMINOS^ 445 "automatic" tripping. Humidity and temperature condi- tions are probable causative factors in automatic tripping. Both . self- and cross-pollination are effective in alfalfa. tripped. Fig. i88.—Pollination of alfalfa. A, flower untripped with calyx and standard removed; B, same tripped; C, position of staminal tube untripped and tripped. {After U. S. Deft. Agri.) Self-pollination usually results from automatic tripping. It is known that good seed crops are produced in regions where tripping insects are scarce. However, the number. 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 Robbins, Wilfred William, 1884-1952. Philadelphia, P. Blakiston
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectbotanyeconomic
