The Importance of the New Selection System and Varieties of Tut in the Development of the Silk Industry of Uzbekistan

Abstract

The article deals with the selection numbers M2-02, ?3-02, ?4-02, ?5-02, ?7-02 of the
Morus L. mulberry family and the morphology of the Tajik bezsemyannaya variety (number of branches in
the bush, length of the branch, cold-affected part of the branch). and the total length of the branch) and the
characteristics of the farm (leaf level, weight and yield) were studied in an in-depth analysis. The main
purpose of the work was to select new varieties with high leaf quality, productive, frost-resistant, adapted to
the climatic conditions of different regions. Scientific experiments on selection numbers and varieties were
conducted at the experimental farm "Jar-arik" under the Silk Research Institute in 2016-2018, and it was
found that the experimental varieties have a number of advantages over the existing standard variety. The
rating of mulberry selection numbers on leaf yield showed a significant advantage over the Tajik
bezsemyannaya variety and other studied numbers, comparing the numbers ?3-02 and ?7-02. The high
productivity of the new breeding numbers was determined at a later stage to the extent that it affected the
viability and cocoon productivity of mulberry silkworms