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 Edwards, L. H. Articles by Smith, E. L. Search for Related Content PubMed Articles by Edwards, L. H. Articles by Smith, E. L. Agricola Articles by Edwards, L. H. Articles by Smith, E. L.

Gene Action of Heading Date, Plant Height, and Other Characters in Two Winter Wheat Crosses¹

Two winter wheat (Triticum aestivum L. em thell.) crosses were used in this study to determine the type of gene action involved in the expression of a number of agronomic characters. An unweighted least squares procedure was adopted to analyze means of parents, F₁, and first generation backcrosses from each cross. Only additive gene effects were significant for plant height, number of tillers/unit area, and kernel weight, indicating possible improvement of these characters through selection in early generations. Heading date was controlled by genes with additive and dominance effects which indicates that selection for this trait would be more effective if delayed until later generations.

Key Words: Triticum aestivum L. em Thell. • Tiller number • Spikelets/spike • Kernel weight • Gene effects • Epistasis • Unweighted least squares procedure

² Associate professor, graduate research assistant, and professor, Dep. of Agronomy, Oklahoma State Univ., Stillwater, OK 74O74.

Received for publication July 7, 1975.