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Combining Ability for Eight Characters of a Four‐Parent Diallel Cross in Vernonia anthelmintica (L.) Willd. 1
Author(s) -
Lai W. Y.,
Lessman K. J.
Publication year - 1974
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/cropsci1974.0011183x001400040023x
Subject(s) - diallel cross , biology , bloom , reciprocal cross , horticulture , fruit set , botany , additive genetic effects , zoology , heritability , hybrid , genetics , ecology , pollination , pollen
A diallel set consisting of all combinations of four parents, F 1 and F 2 , and reciprocals of Vernonia anthelmintica (L.) Willd. showing diverse phenotypes were grown at West Lafayette, Indiana. The study was aimed at elucidating the inheritance of eight traits: days to first bloom, plant height, days to harvest, plant weight, primary branch number, heads per plant, clean seed weight, and percent oil. Combining ability analyses showed that effects of general combining ability were highly significant for days to first bloom, plant height and days to harvest in F 1 and F 2 , and significant for plant weight and percent oil in F 2 , suggesting the major portion of total genetic variation was additive in nature. Specific combining ability was highly significant only for days to first bloom and plant height in F 1 . General reciprocal effects were highly significant for days to first bloom in both F 1 and F 2 , significant for plant height, days to harvest, and heads per plant in F 2 , while specific reciprocal effects were significant for primary branch number in F 1 , significant for days to first bloom, and highly significant for days to harvest in F 2 .