. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. Fig. —Typical frnm seven pure lines of Defiance wheat. 1 and 2 do not yield one grain per spikelet on the average; Nos. 6 and 7 3-icld from 4 to 7 grains per spikelet. Note tendency to club type in No. 6. varieties of wheat are a mixtiu'e of pure lines which can be isolated by single plant selections. In Fig. 137 is shown a typical head from each of 7 different pure lines isolated by selecting single plants from a plot of Defiance wheat. Nos. 1 and 2 did not have an average of one
. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. Fig. —Typical frnm seven pure lines of Defiance wheat. 1 and 2 do not yield one grain per spikelet on the average; Nos. 6 and 7 3-icld from 4 to 7 grains per spikelet. Note tendency to club type in No. 6. varieties of wheat are a mixtiu'e of pure lines which can be isolated by single plant selections. In Fig. 137 is shown a typical head from each of 7 different pure lines isolated by selecting single plants from a plot of Defiance wheat. Nos. 1 and 2 did not have an average of one grain per spikelet while Nos. 6 and 7 bore from 4 to 7 grains per spikelet. If Nos. 6 and 7 prove to be superior in other characters also, they need only to be multiplied in order to yield greatly improved strains of the Defiance variety. It was by this method that Roberts in 1906 isolated a pure line of Turkey wheat that appears very promising for the Great Plains Region. It is worthy of note that this superior pure line was the 135th 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
