. The corn crops: a discussion of maize, kafirs, and sorghums as grown in the United States and Canada. Corn; Kafir corn; Sorghum. BESULTS WITH HYBRIDIZATION 109. Fig. 32.—The effect of three degrees of relationship in crossing is here illustrated. Nos. 3 and 4 are pure strains inbred for three years. No. 2 from a close fertilized seed-stock, the plants each year fertilized from sister plants from the same ear. No. 1 is from a seed-stock, cross fer- tilized for three years. PURE STRAINS, OR BIOTYPES 80. Doctor Shull first presented the idea that a corn- field is to be considered more or less a
. The corn crops: a discussion of maize, kafirs, and sorghums as grown in the United States and Canada. Corn; Kafir corn; Sorghum. BESULTS WITH HYBRIDIZATION 109. Fig. 32.—The effect of three degrees of relationship in crossing is here illustrated. Nos. 3 and 4 are pure strains inbred for three years. No. 2 from a close fertilized seed-stock, the plants each year fertilized from sister plants from the same ear. No. 1 is from a seed-stock, cross fer- tilized for three years. PURE STRAINS, OR BIOTYPES 80. Doctor Shull first presented the idea that a corn- field is to be considered more or less a mixture of pure types (biotypes) and that most of the plants in a field are more or less complex hybrids. By inbreeding, some of the original pure types might be isolated. In other words, a cornfield is a complex mixture of types, and inbreeding gives much the same result as does a chemical analysis with a complex compound—resolves it into its original 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 Montgomery, E. G. (Edward Gerrard), b. 1878. New York, Macmillan
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Keywords: ., bo, bookcentury1900, bookdecade1920, booksubjectcorn, bookyear1920
