Effect of economic value characteristics of newly created mulberry varieties on biological indicators of silkworm

Abstract

The demand for natural fibers on the global market and the ongoing improvement of coir product quality indicators need the efficient use of scientific advancements and creative ideas in their production. In the development of mulberry varieties and hybrids, which are used as food for silkworms, it is particularly crucial to employ new, promising types with high economic value, chemical composition, and nutritional value, as well as those that are resistant to various external stress factors. The growing demand for natural fibers in the global market and the need for better quality coir products necessitates the efficient utilization of scientific advancements and innovative techniques in their cultivation. During the experiment, 4 plants of each mulberry variety were selected and 30 pieces of leaves were picked from their different parts. Immediately, the total length, width and leaf band of each of them were measured, and the length was determined. The results showed that the moisture content of leaves in the spring season showed the highest result in the Markhamat-2017 variety - 7.20%. This indicator was equal to 7.07-7.02% in Mustaqillik-2018 and Jarariq-12 varieties. It was found to be equal to 7.04% in the comparative Tajikskaya bessemyannaya mulberry variety. In the summer season, the amount of moisture in the leaf was 6.96-7.22% in mulberry varieties.