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 Hawkins, S. E. Articles by Hammond, E. G. Search for Related Content PubMed Articles by Hawkins, S. E. Articles by Hammond, E. G. Agricola Articles by Hawkins, S. E. Articles by Hammond, E. G.

Resource Allocation in Breeding for Fatty Acid Composition of Soybean Oil¹

The objective of this study was to determine the allocation of testing resources that would provide the greatest genetic improvement for fatty acid composition in soybean [Glycine max (L.) Merr.] oil. Twenty random lines of maturity groups I to III were evaluated in two replications at seven environments in Iowa and Puerto Rico. The percentages of palmitic, stearic, oleic, linoleic, and linolenic acid were determined for two consecutive injections (analyses) of oil into a gas chromatograph from two 20-seed samples from each of two plants per plot. Heritability estimate averages across fatty acids were 49% on a seed-sample basis, 55% for plants, 63% for plots, and 93% for entry means. Two consecutive analyses were of little or no value for increasing the heritability of the five fatty acids compared with one analysis of an oil sample. The heritabilities for individual plant evaluation were effectively increased by analyzing more than one seed sample per plant. Evaluation of one sample from multiple plants in a plot was more effective than multiple samples from one plant when evaluating a pure line. Plot-to-plot variation was so small that evaluation of multiple plants in one plot was as effective as evaluation of multiple replications. The use of multiple environments was effective for increasing the heritabilities of the five fatty acids.

Key Words: Glycine max (L.) Merr. • Palmitic • Stearic • Oleic • Linoleic • Linolenic • Genetic improvement • Heritability

² Graduate research assistant and professor, Dep. of Agronomy, and professor, Dep. of food Technology, Iowa State Univ., Ames, IA 50011.

Received for publication October 27, 1982.

This article has been cited by other articles:

				W. R. Fehr Breeding for Modified Fatty Acid Composition in Soybean Crop Sci., December 18, 2007; 47(Supplement_3): S-72 - S-87. [Abstract] [Full Text] [PDF]

				J. L. Alt, W. R. Fehr, G. A. Welke, and D. Sandhu Phenotypic and Molecular Analysis of Oleate Content in the Mutant Soybean Line M23 Crop Sci., August 26, 2005; 45(5): 1997 - 2000. [Abstract] [Full Text] [PDF]

				S. M. Rahman, T. Anai, T. Kinoshita, and Y. Takagi A Novel Soybean Germplasm with Elevated Saturated Fatty Acids Crop Sci., March 1, 2003; 43(2): 527 - 531. [Abstract] [Full Text] [PDF]

				V. S. Primomo, D. E. Falk, G. R. Ablett, J. W. Tanner, and I. Rajcan Inheritance and Interaction of Low Palmitic and Low Linolenic Soybean Crop Sci., January 1, 2002; 42(1): 31 - 36. [Abstract] [Full Text] [PDF]

				G. J. Rebetzke, V. R. Pantalone, J. W. Burton, T. E. Carter Jr., and R. F. Wilson Genetic Background and Environment Influence Palmitate Content of Soybean Seed Oil Crop Sci., November 1, 2001; 41(6): 1731 - 1736. [Abstract] [Full Text] [PDF]

				S. M. Rahman, T. Kinoshita, T. Anai, and Y. Takagi Combining Ability in Loci for High Oleic and Low Linolenic Acids in Soybean Crop Sci., January 1, 2001; 41(1): 26 - 29. [Abstract] [Full Text] [PDF]