Size-mass indicators of soybean grown in Uzbekistan

Abstract

In Uzbekistan, soybean is planted as a main crop in early Spring and as a follow-up crop after wheat in Summer. In the conditions of Uzbekistan, the height of soybean grown as a main and repeated crop is 63-99 cm on average, depending on the species and cultivation techniques, the diameter of the stems in the lower part is 4.1-7.1 mm on average, and it is higher in “Oyjamol” and “Amigo” sorts planted in the early period, after wheat and it was lower in the Selekta-201 sort planted as a repeated crop. It was found that the pod placement height was higher than 15 cm in the “Oyjamol” and “Amigo” sorts, while it was 6 cm in the Selekta-201 species , and this indicated the need to set the combine harvester height lower. It was found that the average number of pods in one bush of soybean is 21.0 - 29.8 pieces, the number of grains in a pod is 2-3 pieces, and the ratio of grain to stem is in the range of 1:1 - 1:1.8. This showed that the “Oyjamol” and “Amigo” species planted in the early periods have more grain and stem content than the Selekta-201 sort planted as a repeated crop.