. Breeding crop plants. Plant breeding. 24 liliEEDIXa Ch'OI' J' There is a dominance in Fi of the ivd seed (;olor (brownish red pi^;nient in one of the bran layers) over the white and a partial donunance of the awnless over the bearded condition. The Fi plants will therefore, have red seeds and a slight extension of the awns near the top of the spike. The inherited factors may be considered to be li for red seed, W for white seed, B for bearded, and A for awnless. W and R are considered to be located in homologous loci of one pair of chromosomes and B and A in homologous loci of another
. Breeding crop plants. Plant breeding. 24 liliEEDIXa Ch'OI' J' There is a dominance in Fi of the ivd seed (;olor (brownish red pi^;nient in one of the bran layers) over the white and a partial donunance of the awnless over the bearded condition. The Fi plants will therefore, have red seeds and a slight extension of the awns near the top of the spike. The inherited factors may be considered to be li for red seed, W for white seed, B for bearded, and A for awnless. W and R are considered to be located in homologous loci of one pair of chromosomes and B and A in homologous loci of another pair of chromosomes. The Fi plants may then be considered as ABWR. The gametes of these Fi plants may contain either A or B in combination with either W or R. The different combinations are supposed to occur in equal frequency. Wheat {Triticum vulgare) has eight pairs of chromosomes. The factors for bearded or awnless spike and for color of seed are independently inherited. Therefore they may be considered to be located in separate chromosome pairs. In the diagram only two chromosome pairs are shown. Somatic Cell Parental Gauetcs Ff Zygote F, Gametes Pai?£nt I. White seed Parent 2 Bearded spike Red seed. 2 The Fi plants obtained by the self-fertilization of Fx crosses will then be the result of all possible combinations of the gametes. The combination will be illustrated by the Punnet 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 Hayes, Herbert Kendall, b. 1884; Garber, Ralph John, b. 1890. New York [etc. ] : McGraw-Hill book company, inc.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectplantbr, bookyear1921
