Productivity of hybrid mulberry on salted soils

Tashkent State Agrarian University, University str., 2, 100140, Tashkent, Uzbekistan

Abstract

The demand for natural fibers such as silk, wool, and cotton is growing globally, especially for silk fabrics and raw materials from cocoons. In nations with well-established sericulture, efforts are concentrated on enhancing the quantity and quality of cocoon production by growing high-nutrition-value mulberry varieties through asexual reproduction. The study aimed to determine the productivity of the mulberry hybrids during double operation, which required two years of rearing. The silkworm hybrid Ipakchi 1 x Ipakchi 2 was used for the study, and the hygrothermal regime was observed during rearing. the viability of caterpillars varied between 84.8% to 94.43% depending on the feeding option. The use of Karshi-1 x Pionersky hybrid leaves for feeding resulted in the highest viability of 94.43%, compared to 91.08% in the control. However, the lowest viability of 84.8% was observed in the Katlam x Pionersky hybrid. The mass of live cocoons of all tested hybrids was similar, ranging from 2.04-2.21 g.