Timing and standards of planting winter wheat in irrigated lands

In farming conditions with good water or irrigation, planting of varieties belonging to the intensive type gives good results. The importance of intensive varieties increases even more when using accelerated technology in wheat cultivation. The potential yield and product quality of a variety depends on genetic characteristics and growing conditions and agrotechnics [7-8, 11]. High potential productivity is achieved when cultivation conditions, including agrotechnics, are suitable for the biological and ecological characteristics of the variety. When 24 varieties of wheat belonging to the countries of Central Asia and Transcaucasia were tested under the same conditions in irrigated land at the Research Institute of Plant Science of Uzbekistan, the difference in yield between varieties was 32 q (112-80 q/ha). According to the results, it was found that the higher plant height was recorded in the “Drujba” variety on September 20, accounted for 92 cm, whereas in the “Grom” variety, the lowest one was found on November 1, which was 81 cm. The results of the grains in one ear showed that the highest result was observed in the “ASR” variety, which was 56 pieces on october 10, however, this number was quite low than in other varieties.

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