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Single Plant Seed Sources for Uniform Soybean Physiology Tests 1
Author(s) -
Stutte C. A.,
Blem A. R.,
Weiland R. T.
Publication year - 1979
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1979.0011183x001900030011x
Subject(s) - biology , cultivar , variance components , agronomy , horticulture , botany , statistics , mathematics
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.