Breeding Potentials of Noncultivated Cottons. II. Inheritance of Peduncle Length1
- F. D. Wilson and
- R. L. Wilson2
Long peduncles, characteristic of some primitive race stocks of cotton, Gossypium hirsutum L., could be disadvantageous agronomically because they may possibly grow at the expense of early maturity and of fiber production. However, they may have value as a deterrent to larvae of pink bollworm, Pectinophora gossypiella (Saunders), if incorporated into a pubescent strain. We determined that Texas 711, a primitive race stock with long peduncles, differed from ‘Stoneville 7A’ by two major factor pairs that act additively. Another cultivated parent, ‘Deltapine 16,’ apparently differs from Stoneville 7A in a recessive epistatic modifier. Two other race stocks, Texas 40Y and Texas 203, apparently carry a partially dominant epistatic modifier rather than a recessive one. The latter race stock may also be monomeric for the major factor pairs. Results suggest that transfer of long peduncles into improved agronomic types of cotton should be relatively easy.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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