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Combining Ability Estimates in Arachis hypogaea L. II. Field Performance of F 1 Hybrids 1
Author(s) -
Wynne J. C.,
Emery D. A.,
Rice P. W.
Publication year - 1970
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/cropsci1970.0011183x001000060036x
Subject(s) - heterosis , arachis hypogaea , hybrid , biology , diallel cross , yield (engineering) , horticulture , field experiment , agronomy , botany , materials science , metallurgy
Estimates of heterosis and combining ability were made using 15 hybrid combinations grown under field conditions. The hybrids were produced by crossing in diallel six peanut ( Arachis hypogaea L.) lines collected from three geographic areas of South America. Of 17 characters, estimates of specific combining ability were significant for 16 and estimates of general combining ability were significant for 8. Specific combining ability was greater for yield and for most fruit characters. Several of the crosses showed considerable heterosis when compared with mid‐parent means. Crosses of Virginia × Valencia type parents gave greater heterosis than other crosses for vegetative plant characters. However crosses of Valencia × Spanish type parents gave greatest heterosis for yield and fruit characters. Comparison of field results with results obtained previously in a controlled environment indicated that the controlled environment may have limited use in predicting field performance of peanut hybrids.