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 Google Scholar Google Scholar Articles by Stutte, C. A. Articles by Weiland, R. T. Search for Related Content PubMed Articles by Stutte, C. A. Articles by Weiland, R. T. Agricola Articles by Stutte, C. A. Articles by Weiland, R. T.

Single Plant Seed Sources for Uniform Soybean Physiology Tests¹

Soybean [Glycine max (L.) Merr.] plants grown from bulk seed sources and from seed of single parent plants obtained at two edaphically and climatically dissimilar sites in Arkansas were evaluated for uniformity in several physiological and developmental processes. Using the determinate cultivar ‘Davis’, the mean values for the data obtained for most parameters did not differ significantly among the seed sources and production sites. There were, however, large ranges of values within the data. For most parameters, the ratio of variances between the two bulk sources and between the two single parent seed sources differed only randomly; however, large ratios were obtained when the data for plants from bulk seed produced at one site were compared to those for plants grown from single parent seed at the other site. The variance ratio comparisons strongly suggest that the greater portion of the observed variance was due to factors specific for the production sites. To a lesser, though significant degree, this variance also had an intra-plant genetic component. To obtain maximum uniformity among plants in physiological studies, it would, therefore, be appropriate to use seed all grown at the same location throughout the studies. The use of soybean seed from the same parent plant would offer additional benefit, not only in promoting a high degree of genetic uniformity, but also in minimizing variability due to specific environments at production site.

Key Words: Seed source • Glycine max

² Dep. of Agronomy, Altheimer Laboratory, Univ, of Arkansas, Fayetteville, AK 72701

Received for publication September 9, 1978.