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 HighWire Citing Articles via Google Scholar Google Scholar Articles by Boerma, H. R. Articles by Cooper, R. L. Search for Related Content PubMed Articles by Boerma, H. R. Articles by Cooper, R. L. Agricola Articles by Boerma, H. R. Articles by Cooper, R. L.

Effectiveness of Early-generation Yield Selection of Heterogeneous Lines in Soybeans¹

F₂–derived, heterogenous soybean [Glycine max (L.) Merr.] lines (HL) were selected for high seed yield by the early-generation yield-testing procedure (EGT), based on F₃, F₃–F₄, and F₃–F₄–F₅ combined generation means in four soybean crosses. Pure lines (PL) were selected for high seed yield from these same four crosses by the pedigree selection (PS) and single-seed-descent (SSD) procedures.

Selection of superior-yielding HL in the F₃, F₄, and F₅ generations decreased the coefficient of genetic variability in each generation of selection. The yield performance of the selected HL in the 1970 uniform preliminary test II also suggested that the HL were uniform among lines in yielding ability and the HL from one cross were equal in yield to the reference varieties.

The results indicated that in one of the four crosses PL selected by the SSD procedure were significantly higher in yield and earlier in maturity than the HL. In the other crosses, no significant yield differences existed between PL and HL, although the PL were usually earlier in maturity than the HL. These results suggested that pure lines from a cross will be equal to or higher in yield than F₂–derived heterogeneous lines.

Key Words: Glycine max (L.) Merr. Pedigree selection • Single-seed-descent selection • Coefficient of genetic variability

² Assistant professor, Dept. of Agron., U. of Ga., Athens, GA 30602; and research agronomist, ARS, USDA, and professor, Dept. of Agron., U. of I11., Urbana, IL 61801, respectively.

Received for publication April 26, 1974.

This article has been cited by other articles:

				M. A. R. Mian, R. L. Cooper, and A. E. Dorrance Registration of 'Prohio' Soybean Journal of Plant Registrations, September 1, 2008; 2(3): 208 - 210. [Abstract] [Full Text] [PDF]