Heritability and correlations among biochemical characters in some soybean varieties
1987
Surlan-Momirovic, G. (Poljoprivredni fakultet, Beograd (Yugoslavia))
Twelve soybean varieties of different maturity groups, one of them originating from Yugoslavia and others from the USA were used in this experiment. Very high values of broad sense hertibility coefficients (from 83.1% to 92.7%) were observed for all biochemical properties (contents of proteins, oils and fatty acids). On the basis of these values it could be concluded that variability of biochemical properties was under high genetic control. Genetic and phenotypic correlation coefficients, for all the biochemical properties, were nearly the same, i.e. the influence of environment on these relationships was minimal. There was negative correlation between the yield and protein content (-0,516*; -0.326) and also negative but insignificant correlation between yield and oil content (-0.498; -0.370). Negative relationship presented difficulties in breeding for yield and increased protein and oil content. Correlation between seed yield and linoleic acid content was positive (0.751*; 0.658) and negative between yield and oleic acid content (-0.824*; -0.702).
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