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 Donnelly, E. D. Search for Related Content PubMed Articles by Donnelly, E. D. Agricola Articles by Donnelly, E. D.

Selection for Chasmogamy in Sericea Lespedeza¹

Lines of sericea lespedeza, Lespedeza cuneata (Dumont) G. Don, genetically high and low in percentage chasmogamous seed (seed from chasmogamous flowers-PCS) were selected. The F₂ from a low x high PCS line produced a high PCS similar to the high parent. Approximately 90% of F₂ plants produced chasmogamous seed at a frequency similar to the high parent. More than one dominant gene determines the producnon of chasmogamous flowers and seed, and this trait appears highly heritable if plants are not cut for hay. Cutting once late in the growing season reduced the PCS, particularly of the high PCS lines and of the F₁. The low lines were less affected by cutting. To obtain maximum heterosis through increased outcrossing potential, certified seed fields of sericea lespedeza cultivars should not be harvested for hay.

Key Words: Cleistogamy • Heterosis • Heritability • Crossbreeding • Environmental variation • Lespedeza cuneata

² Professor, Dep. of Agronomy and Soils.

Received for publication March 2, 1979.