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General vs. Specific Combining Ability in Alfalfa for Seedling Vigor and Fall Growth Habit in the Year of Establishment 1
Author(s) -
Carnahan H. L.,
Hovin A. W.,
Graumann H. O.,
Kehr W. R.,
Davis R. L.,
Elling L. J.,
Hanson C. H.
Publication year - 1960
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1960.00021962005200090008x
Subject(s) - diallel cross , seedling , habit , biology , agronomy , variance components , character (mathematics) , range (aeronautics) , horticulture , botany , mathematics , statistics , psychology , hybrid , psychotherapist , materials science , geometry , composite material
Synopsis Seedling vigor and fall growth habit of the 91 diallel crosses among 14 alfalfa clones were scored in 3 and 4 states, respectively. Estimated, variance components for general (by far the largest component) and specific combining ability and the interaction of these with locations were all highly significant for both characters. Clones differed in their contributions to both additive and nonadditive genetic variances. The two characters were highly correlated (range +0.82 to 0.93), and interlocation correlations for each character were likewise high.