Parameters of Winter Wheat Growing and Development after Mutagen Actione

Abstract

Dry seeds of seven winter wheat varieties and one line were exposed by gamma-rays and chemical mutagens to determine their effect on plant grows and development. Next parameters have been investigated – plant survival, pollen fertility, components of yield structure. Informative value by mutation depression evaluation of all parameters has been developed. The most informative parameters for mutagenic depression in M₁ generation of winter wheat plants were survival of plants, pollen fertility, indicators such yield structure parameters as plant height, grain weight per spike, thousand grains weight. Insensitive and most sensitive for mutagen actions varieties have been developed.