Nutrition assessment of new created mulberry varieties

Abstract

This research was aimed at establishing high-quality and abundant cocoon cultivation in the country, to create new high-quality and nutritious mulberry varieties and gradually introduce them into production. In order to create local mulberry varieties, for the first time the viability of mulberry silkworm hybrids of mulberry varieties “Jararik-9”, “Jararik-10” was determined by the level of cocoon productivity and technological impact. The coefficient of leaves eating of new varieties of mulberry “Jararik-9”, “Jararik-10” by hybrid worms of silkworm was determined. The varieties of mulberry belonging to the genus Morus alba L. and hybrids belonging to the genus Bombyx mori L of the mulberry silkworm were taken as the study objects. For chemical analysis, leaf samples were taken and analyzed in the spring in the order established by the worms in the middle of the 5th year of development. Furthermore, the effect of new mulberry varieties on the growth dynamics of worm leaves was studied. The coefficient of leaves eating of new mulberry varieties by hybrid worms was determined. According to the results of the research, among the new selection numbers No3-02 and No7-02, the coefficient of assimilation of No3-02 and No7-02 is significantly higher than other selection numbers and “Tajik seedless” variety.

Influence of the chemical composition of mulberry on the growth dynamics of silkworm larvae

“…Industrial hybrids of mulberry silkworm "Ipakchi 1 x Ipakchi 2", "Ipakchi 2 x Ipakchi 1", which are widely distributed in Uzbekistan, were reared with the leaves of 5 selection numbers of mulberry selected for experiments. Worm care was carried out in the special ecological worm houses of the Silk Research Institute under the same hygrothermal conditions [8][9][10]. For this purpose, enough leaf samples were taken from the breeding numbers in the spring period in the middle of the 5th age of worms to obtain 100 g of dry leaves from each number.…”

“…Research scientists [1,2,7] emphasized that paternal and maternal forms are of great importance in the creation of new hybrid combinations of mulberry and substantiated that the productivity of new generations with whole leaves has its effect on the next generations. Mulberry breeder scientists [8,9] emphasized the permissibility of paying special attention to their morphobiological, economically valuable characters in their research, and paid special attention to these characters when creating new mulberry varieties. It is possible to create mulberry varieties with high nutritional value suitable for different seasons based on the gene pool of more than 240 mulberry trees from different regions of the Institute of Sericulture Research of Uzbekistan.…”

“…It is possible to create mulberry varieties with high nutritional value suitable for different seasons based on the gene pool of more than 240 mulberry trees from different regions of the Institute of Sericulture Research of Uzbekistan. Several scientists [6][7][8][9][10] analyzed the chemical composition of the new selection systems created at the Scientific Research Institute of Sericulture and assessed the nutritional value of mulberry varieties. Leading scientists [7][8][9][10] studied the effect of new breeding systems of mulberry on economic valuable traits of silkworm and noted their importance in industrial cocoon production.…”

“…Several scientists [6][7][8][9][10] analyzed the chemical composition of the new selection systems created at the Scientific Research Institute of Sericulture and assessed the nutritional value of mulberry varieties. Leading scientists [7][8][9][10] studied the effect of new breeding systems of mulberry on economic valuable traits of silkworm and noted their importance in industrial cocoon production.…”