The article evaluated the genetics of six cucumbers (Cucumis sativus L.) cultivars and 30 hybrids based on morpho-yield traits. The dominant and epistatic gene effects managed the fruit weight in three cucumber hybrids (C-25/1, A-6, and A-9), while additive gene effects in three other hybrids were supreme. For productivity per plant, dominant genes with epistatic effects controlled these in three accessions, while additive effects played a special role in manifesting the trait in three other hybrid (C-25/1, A-6, and A-9) genes. Likewise, dominant genes with epistatic effects controlled the yield per plant trait in three accessions, while additive effects influenced the attribute in three other hybrids (C-25/1, A-6, and A-9). According to these traits, the promising hybrids were С-25/1 х С-25/2, С-26 х С-25/2, С-26 х С25/1, А-9 х С-26, and А-6 х С-25/1. The cucumber F1 hybrids C-26 x C-29, A-9 x A-6, and A-9 x C-25/2 showed characteristics of large fruits weighing 108.2 to 113.1 g. In the accessions, C-25/1, A-6, and A-9, the additive gene effects dominated the studied trait (σ2ĝi > σ2si). The superior-in-yield hybrid combinations were C-26 x C-29, A-9 x A-6, and A-6 x A-9, with a total fruit yield of 691 to 769 g per plant.
Cucumber (Cucumis sativus L.), diallel crosses, general and specific combining ability, female flowering, fruits, physiological maturity, productivity
The study enunciated that in cucumber (C. sativus L.), the average fruit weight bore control from dominant genes with epistatic effects in three accessions (C-25/1, A-6, and A-9), and additive gene effects were vital in three other accessions. The fruit productivity per plant also had dominant and epistatic gene effects managing the trait in three accessions, while in three others (C-25/1, A-6, and A-9), the additive gene effects manifested most in the trait. The promising hybrids, viz., C-26 x C-29, A-9 x A-6, and A-6 x A-9, performing best were choices to serve as source material for further selection.