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 Quisenberry, J. E. Search for Related Content PubMed Articles by Quisenberry, J. E. Agricola Articles by Quisenberry, J. E.

Inheritance of Fiber Properties Among Crosses of Acala and High Plains Cultivars of Upland Cotton¹

Although High Plains and Acala cultivars of cotton are taxonomically classified as Gossypium hirsutum L., their pedigrees suggest that they have remained largely discrete populations during cultivar development. To evaluate the genetic control associated with certain fiber properties when High Plains and Acala cultivars are hybridized, a factorial mating design was used to cross randomly- selected High Plains and Acala lines. The hybrid populations that resulted from those crosses were used to obtain estimates of genetic variances for fiber length, strength, elongation, and fineness.

Additive genetic variance predominated for fiber length, strength, and elongation. Most of the phenotypic variance for fiber fineness was due to the environmental component; however, a statistically significant, nonadditive component was observed. The results suggested that in general, within segregating populations derived by hybridizing High Plains and Acala cultivars, lines can be selected that have desirable combinations of fiber length, strength, and elongation, but that genetic gain for fiber fineness will probably be difficult.

Key Words: Gossypium hirsutum L. • Heterosis • Cotton breeding • Gene action

² Research geneticist, Okla. Tex. Area, Southern Region, ARS, USDA, Lubbock, Tx 79401.

Received for publication July 29, 1974.