. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. HYBRIDIZATION . wooden label with copper wires which is attached to the ear. If it is de- sired to make a second pollination the bag containing pollen maybe tied to the plant alongside the ear and the same process repeated one or two days later. By close observation of the developing stigmas and pollinat- ing at the most propitious time well developed ears can be secured from a single polUnation. Fig. 142 illustrates the principal features above Fig. 142.—Hybridization of maize. Rig
. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. HYBRIDIZATION . wooden label with copper wires which is attached to the ear. If it is de- sired to make a second pollination the bag containing pollen maybe tied to the plant alongside the ear and the same process repeated one or two days later. By close observation of the developing stigmas and pollinat- ing at the most propitious time well developed ears can be secured from a single polUnation. Fig. 142 illustrates the principal features above Fig. 142.—Hybridization of maize. Right, plant just previous to with leaves subtending ears stripped off; left, the same plant with bag enclosing tassel and cylinders covering ears. Method of Hybridizing Wheat.—This plant has numerous hermaph- rodite flowers arranged in a branched spike (Fig. 143, upper left). Each spikelet bears two rows of bracts or glumes (Fig. 143, 2). The lowest two bracts are sterile but each of the next four usually subtends a flower while at the top of the spikelet are two or three rudimentary flowers. Each flower consists of an ovary with two much branched stigmas (Fig. 143, 12, 13) and three stamens which are shown in cross-section in Fig. Digitized by Microsoft®. 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 Babcock, E. B. (Ernest Brown), b. 1877; Clausen, Roy Elwood, 1891-. New York, McGraw-Hill; [etc. , etc. ]
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Keywords: ., bookcentury1900, bookdecade1910, booksu, booksubjectplantbreeding
