Формирование урожайности сортами чины посевной при разных способах посева и регуляторах роста на каштановых почвах предгорного Дагестана

Abstract

The above scientific work presents the results of research on the study of the adaptive potential of cultivars of the seed rank (Crustacean and Marble) on dark chestnut soils of Foothill Dagestan. As follows from the conducted field experiment, the growth regulators Rhizotorphin and Albit used contributed to the reduction of harvest ripeness of the above varieties. It was found that the maximum indicators of photosynthetic activity of the studied varieties were provided with an ordinary method of sowing with a row spacing width of 0.30 m and pre-sowing treatment with growth regulators. Compared with the control variant (without treatment with growth regulators), on average, the leaf surface area and net photosynthesis productivity increased by 3.7-6.9 and 6.3 -12.4%, respectively, against the background of the use of growth regulators Rhizotorphin and Albit. Compared with the ordinary method of sowing with row spacing of 0.15 m and with a wide-row with a width of 0.45 m, the excess in the variant with ordinary sowing with a width of 0.30 m was 9.9- 8.3, respectively; 5.2- 5.4 and 14.7-15.0; 11.3-7.3%.Analysis of the formation of the leaf surface area and the net productivity of photosynthesis by varieties of rank he showed that the most acceptable data was provided by the Marble variety. It was revealed that the studied varieties provided the maximum seed yield when treated with the growth regulator Albit, compared with the control variant and the variant with the regulator Risitorfin, the increase was 16.8 and 8.6%, respectively. The most preferred of the sowing methods turned out to be an ordinary method with a row spacing of 0.30 m, where the yield on average for varieties and regulators was higher than the first and third options by 14.8 and 10.4%, respectively. The highest yield was provided by the Marbled variety, the increase compared to the Crustacean variety on average by sowing methods and variants with growth regulators was 5.5%.