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Combining Ability Analysis of Anatomical Components of the Dry Fruit in Chili Pepper 1
Author(s) -
Omar Marin V.,
Lippert L. F.
Publication year - 1975
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/cropsci1975.0011183x001500030013x
Subject(s) - diallel cross , biology , hybrid , heterosis , horticulture , capsicum annuum , population , mating design , pepper , botany , demography , sociology
Percentages and combining abilities for five fruit components in dry chili peppers ( Capsicum annuum L.) were analyzed in a diallel cross involving nine parental entries. Endocarp comprised approximately 52% of the total dry fruit, seed 25%, exocarp 12%, placenta 6%, and stem 5%. Increases in endocarp percentage were generally associated with decreases in seed content. Variability in fruit components among F 1 hybrids were predominantly attributable to general combining ability (GCA), suggesting additive gene action. Neither mean heterosis in hybrids nor mean squares for specific combining ability (SCA) were significant for any of the fruit components. GCA effects and GCA variances of parents for endocarp and seed components compared favorably with parental performance. Procedures for improving endocarp percentage and reducing seed and exocarp percentages are discussed. Parental lines are evaluated for incorporation into base population development for recurrent selection breeding programs. Information from this study is integrated with previously reported information on yield and fruit quality characteristics from the same diallel study.