TYPES OF INHERITANCE PLANT HEIGHT IN F1 HYBRIDS SOFT WINTER WHEAT
Lodging of plants significantly reduces productivity and mechanical harvesting difficult. In regard to the breeding of great value is the short-form. Analyzing achieve wheat breeding stem height, P. P. Lukyanenko believed that the national and international selection comes from forms of long-stemmed varieties to shortness. Thus, ceteris paribus, stunted forms take precedence over how tall plants more resistant to lodging under irrigation and adequate moisture, as well as the impact of heavy rains, accompanied by strong winds. Varieties resistant to stalk lodging should have a thick solid straw. Stability at the root lodging is caused by development of a strong root system. Promising for breeding wheat varieties non-laying used of the short form, carrying the recessive and dominant genes of dwarfism. Effects of the short alleles on agronomic traits of winter wheat studied and widely discussed in the literature. Reduction in plant height in semi-dwarf wheat authors attribute to the significant increase in the number of grains, harvest index and grain yield. In this connection it is necessary to study the types of inheritance of plant height, determine the number of genes controlling this trait, their interactions with each other and growing conditions. This article presents the results of a study of the first generation hybrids obtained by crossing different plant height parental forms of soft winter wheat. Shows the types of inheritance of “plant height” established manifestation of heterosis in some combinations of crossing.