Genetic control of the number of grains on corn cob

The evaluation of the combinational ability maize I-lines was carried out on basis “the number grains cob”. This parameter is one significant components structure plant productivity and harvest directly dependent grain rows in a cob row. quantitative manifestation this trait significantly influenced by environmental conditions. A negative correlation studied with seed size revealed. Growing conditions strongly affect value trait. source material for breeding works low high indicators terms determined. Overdomination has predominant effect cob. values H1 dominance component are notably higher than D component, which characterizes variability caused additive action genes. H2/4H1 indicate an uneven distribution among parental lines alleles positive effects. genes or gene groups that control varies from 2 to 3. In 2016–2018, paratypical variance (E) had influence formation grains.