. Botany for agricultural students . Botany. 552 HEREDITY for a part of the character, that, although they do segregate and combine according to Mendehsm, they form so many kinds of combinations and thus so many kinds of individuals occur in the second generation of hybrids that it is difficult to detect Mende- lian ratios. For example, in the case of crossing the tall and small varieties of Corn, it is assumed that the tall variety has a number. Fig. 481. — Inheritance of size and beards in Wheat. Parent types (Turkey X Bluestem at the left and a hybrid No. 143 at the right) and be- tween the
. Botany for agricultural students . Botany. 552 HEREDITY for a part of the character, that, although they do segregate and combine according to Mendehsm, they form so many kinds of combinations and thus so many kinds of individuals occur in the second generation of hybrids that it is difficult to detect Mende- lian ratios. For example, in the case of crossing the tall and small varieties of Corn, it is assumed that the tall variety has a number. Fig. 481. — Inheritance of size and beards in Wheat. Parent types (Turkey X Bluestem at the left and a hybrid No. 143 at the right) and be- tween the parent types the Fi generation of the Cross. In the Fi generation the heads are somewhat intermediate in size and have short beards. After Gaines. of factors for size that are not present in the small variety. Let us suppose the large variety has four extra factors for size that are not present in the small variety. These factors may be rep- resented by A, B, C, and D. Since the tall variety is pure for its height, its extra height over the small variety is due to the presence oi AABBCCDD, and the corresponding constitution of the small variety is aabbccdd, in which the small letters represent. 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 Martin, John N. (John Nathan), b. 1875. New York : John Wiley & Sons, Inc.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1919
