Performance of the double-cross tomato hybrids from a partial diallel

ABSTRACT Knowledge of the combining ability genotypes, genetic diversity, and heterosis play paramount role in obtaining double-cross hybrids with high productivity. This study was aimed at evaluating these parameters tomato genotypes using partial diallel crosses among commercial single-cross hybrids, which verified possibility for purposes. Tomato included 15 their genitors, two as checks. Of fifteen tomato, exhibited superiority, such Aguamiel × Compack Dominador Compack, mainly total fruit yields. The phenotypic expression trait is controlled by genes non-additive effects, whereas additive effects account mass, horizontal diameter, vertical bunch insertion height. Regarding molecular analyses pointed out polymorphism 79 percent evaluated loci evidencing a variability genitors. values were low most crosses, except Forty Plutão that represented 107 yield. As compared checks, cross generated superior quality inferred significant heterosis.