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 Fehr, W. R. Articles by Weber, C. R. Search for Related Content PubMed Articles by Fehr, W. R. Articles by Weber, C. R. Agricola Articles by Fehr, W. R. Articles by Weber, C. R.

Mass Selection by Seed Size and Specific Gravity in Soybean Populations¹

Three cycles of mass selection for seed size and specific gravity were evaluated for their effect on the protein and oil composition of F₆-F₈ heterogeneous soybean populations from two crosses. An approximately linear change in seed size was observed with each selection cycle. Effective progress was obtained for protein content in cycle 1 of both crosses, but the effectiveness of subsequent cycles differed between crosses. Selection was effective for oil content in cycle 1, but progress in subsequent cycles differed between large and small seed populations of both crosses. Maximum progress for high protein and low oil was obtained by selecting for large seed and high specific gravity. Selection for small seed and low specific gravity resulted in maximum progress for high oil and low protein. Heritability was .93, .87, .77, and .73 for seed size, specific gravity, protein, and oil, respectively.

Key Words: soybeans • Glycine max (L.) Merrill • protein • oil • heritability • phenotypic and genotypic correlations

² Assistant Professor of Agronomy, Iowa State University, and Director of Research, Peterson Seed Co., Waterloo, Iowa, (formerly Agronomist, Crops Research Division, ARS, USDA, and Professor, Iowa State University), respectively.

Received for publication November 17, 1967.

This article has been cited by other articles:

				H. Li and J. W. Burton Selecting Increased Seed Density to Increase Indirectly Soybean Seed Protein Concentration Crop Sci., March 1, 2002; 42(2): 393 - 398. [Abstract] [Full Text] [PDF]