If SCA effects are not important but variation for TGCA effects among cultivars exists, then superior blends can be developed by mixing genotypes with superior average blending responses.
i]/2 is the TGCA of the ith genotype (in blends), [[gamma].
SCA and TGCA are measures of blending performance that exclude innate pure-line yielding effects (GYA).
Variation among TGCA effects was also not significant in both experiments (Tables 4-7).
Abbreviations: GBA, general blending ability; GLM, general linear models; GYA, general yielding ability; SCA, specific competing ability; TGCA, true general competitive ability.