PJB-2017-637
THE GENETIC POTENTIAL OF SPRING WHEAT (TRITICUM AESTIVUM L.) RESISTANCE TO COPPER AND LEAD
Ravilya Alybayeva
Abstract
Development and use of plant varieties, characterized by minimal accumulation of heavy metals, can be a solution to the problem of soil contamination. The aim of our study was to identify wheat germplasm resistant to heavy metals (copper and lead), priority soil pollutants in the East Kazakhstan, and identification of the donor for the selection of the metal resistance and promising forms of wheat, intended for introduction into production. The objects of the study are different genotypes of spring wheat from the collection of the East - Kazakhstan Agricultural Research Institute. The study of the different genotypes of spring wheat in the conditions of natural soil contamination revealed the wheat varieties that are resistant to the accumulation in the seeds of copper and lead. These varieties have been recommended for further use in breeding for metal resistance. The yield and survival of wheat plants during the spring-summer vegetation period were also studied. The greatest yield among the studied varieties has four varieties of spring wheat. The best survival shows one variety of wheat. Two varieties can be recommended for cultivation in soils contaminated with copper, and two varieties on soils contaminated with lead, as they accumulate the minimum number of studied metal in the seed and at the same time characterized by high yields and good survival during the spring and summer growing season in a polymetallic soil contamination. One of spring wheat variety can be recommended for cultivation on soils contaminated with both of the studied metals.
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