RESULTS OF SELECTION TO CREATION OF NEW BREAD WHEAT VARIETIES TO TOLERANCE OF ENVIRONMENTAL ABIOTIC FACTORS ON THE RAINFED CONDITIONS

Аннотация

The yield of crops grown on rainfed (dry land) araes in Uzbekistan is completely dependent on weather conditions. In addition, in recent years, due to global climate changes, frequent annual droughts and high temperatures during the growing season of Bread Wheat in rainfed lands have a great influence on the plant, causing a decrease in productivity and grain quality. In the dry region of Uzbekistan, the growth and development of grain crops are severely damaged by the low temperature in winter season and the heat and warm winds that occur during the flowering-grain filling phases of wheat cultivars.