COMBINING ABILITY ANALYSIS OF ECONOMICALLY IMPORTANT TRAITS IN THE DIALLEL CROSSES OF CUCUMBER

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 & Scy;-25/1 & khcy; & Scy;25/2, & Scy;-26 & khcy; & Scy;-25/2, & Scy;-26 & khcy; & Scy;25/1, & Acy;-9 & khcy; & Scy;-26, and & Acy;-6 & khcy; & Scy;-25/1. The cucumber F1 1 hybrids C-26 x C29, 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 (sigma 2 & gcirc;i > sigma 2si). 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.