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Selection to Modify Sugar Content of Soybean Seeds 1
Author(s) -
Openshaw S. J.,
Hadley H. H.
Publication year - 1981
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/cropsci1981.0011183x002100060002x
Subject(s) - sugar , heritability , biology , selection (genetic algorithm) , trait , yield (engineering) , genetic correlation , microbiology and biotechnology , zoology , botany , horticulture , genetic variation , food science , genetics , gene , materials science , artificial intelligence , computer science , metallurgy , programming language
The objectives of this study were to investigate the inheritance of sugar concentration in soybean [ Glycine max (L.) Merr.] seeds and the effect of selection for that trait on protein and oil concentration, weight, and yield of seeds. We studied the F 2 , F 3 , and F 4 generations of one cross and the F 2 and F 3 of another. Heritability estimates of sugar concentration based on parent‐progeny regressions were 0.38 and 0.14 when selection was based on individual F 2 plants and 0.69 when selection was based on F 3 progeny means. The values agreed well with estimates based on variance components and with realized heritabilities. In one cross, realized heritabilities were greater for increased than for decreased sugar. There was no indication of genotype × year interaction for sugar content. Sugar was positively associated with oil and negatively associated with protein and the sum of oil + protein. In some generations, low sugar was associated with decreased yield.