Effects of reciprocal full-sib selection in maize

Abstract

This reproduction was made from a copy of a manuscript sent to us for publication and microfilming. While the most advanced technology has been used to pho tograph and reproduce this manuscript, the quality of the reproduction is heavily dependent upon the quality of the material submitted. Pages in any manuscript may have indistinct print. In aU cases the best available copy has been filmed.The following explanation of techniques is provided to help clarify notations which may appear on this reproduction.1. Manuscripts may not always be complete. When it is not possible to obtain missing pages, a note appears to indicate this.2. When copyrighted materials are removed from the manuscript, a note ap pears to indicate this. Oversize materials (maps, drawings, and charts) are photographed by sec tioning the original, beginning at the upper left hand comer and continuing from left to right in equal sections with small overlaps. Each oversize page is also filmed as one exposure and is available, for an additional charge, as a standard 35mm slide or in black and white paper format. * 4. Most photographs reproduce acceptabty on positive microfilm or micro fiche but lack clarity on xerographic copies made from the microfilm. For an additional charge, all photographs are available in black and white standard 35mm slide format.*

Evaluation of three recurrent selection methods in corn (Zea mays L.)

“…This result agreed with theory in that smaller effective population sizes were used for half-sib and SI family selection relative to mass selection and the smaller population sizes should result in increased genetic drift and decreased genetic variance. Reeder (1985) evaluated progress from six cycles of reciprocal full-sib recurrent selection in the BS10 and BSll com populations. He reported that additive genetic variance tended to decrease for yield, stalk lodging, ear and plant height from the CO to the C6.…”