Abstract:
An experiment was set up on straight and reciprocal crossing combinations of six maize (Zea
mays L.) genotypes, to study the effects of cold stress tolerance and the correlation between
seedling parameters and field kernel yield in the years of 2016-17. A laboratory analysis was
followed by field trials, where emergence, plant development, flowering time, seed moisture
content at harvest, and kernel yield were scored. The shoot mass of seedlings,- developing in a
cold oxygen deficient environment, was greater than the fresh root mass .A close correlation
was found between fresh shoot weight of stressed seedlings and the kernel yield in case of
Danietta, Classil, and Mv 223 hybrids in 2016 experiments. The correlation was the same in
case of Classil hybrid in 2017 experiments. Avoiding the hot summer conditions at flowering
etap, need early sowing and repairing the cold tolerance of young maize seedlings, with selecting
the best reciprocal crossing combinations of d different and sensible corn genotypes |
