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Document Type

Research

Keywords

Zea Mays L., maize, mass selection, reciprocal full-sib selectton, recurrent selectton

Abstract

Responses to mass selection for number of ears per plant and reciprocal full-sib selection for grain yield in 2 synthetic varieties of corn (Zea mays L.) were determined. Ten cycles of mass selection were effective for increasing number of ears per plant, but no correlated response for grain yield improvement was realized. Reciprocal full-sib selection was effective in increasing grain yield of the 2 parental varieties and their cross and in increasing number of ears per plant. No evidence was obtained that indicated genetic variability decreased in the parent varieties after 4 cycles of reciprocal full-sib selection or after 5 cycles of selection for the interpopulation full-sib crosses. Reciprocal full-sib selection was more effective than mass selection for improvement of other agronomic traits.

Publication Date

December 1981

Journal Title

Proceedings of the Iowa Academy of Science

Volume

88

Issue

4

First Page

172

Last Page

178

Copyright

© Copyright 1981 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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