HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Wilson, F. D. Articles by Wilson, R. L. Search for Related Content PubMed Articles by Wilson, F. D. Articles by Wilson, R. L. Agricola Articles by Wilson, F. D. Articles by Wilson, R. L.

Breeding Potentials of Noncultivated Cottons. II. Inheritance of Peduncle Length¹

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.

Key Words: Gossypium hirsutum L. • Pectinophora gossypiella (Saunders) • Pink bollworm • Hostplant resistance • Additive variance • Nonadditive variance

² Research geneticist and research entomologist, respectively, Western Cotton Research Laboratory, ARS-USDA, 4135 E. Broadway Road, Phoenix, AZ 85040.

Received for publication September 4, 1975.