Аннотация:Abstract. On experimental fields in different regions of Eurasia, varieties of Russian selection of sugar sorghum and root chicory were tested. For the first time, the features of growth, development, and productivity of three varieties of root chicory of Russian breeding (Yaroslavsky, Rostovsky and Petrovsky) in the Gissar valley of Tajikistan were studied. The seeds of the Petrovsky variety were encrusted with a mixture of Apron fungicide and Isabion growth stimulator. Studies have demonstrated high germination of seeds of all varieties. The maximum germination was observed in encrusted seeds. Plants of different varieties had different biometric values and yields. Varieties of chicory ensured the yield of root crops from 20 to 52 t/ha and from 29.6 to 63.2 t/ha of total biomass. In terms of root crop yields, the highest indicators were obtained for the Petrovsky variety, sown with encrusted seeds. Field studies of sugar sorghum have shown that the most productive both in the conditions of the Volga region (Saratov) and Tajikistan were Volzhskoe 51 and Scheherezada varieties. For summer sowing in Tajikistan, Isolda and Scheherezada varieties can be recommended. The Sevilya variety showed the lowest yield; however, it exceeded all other varieties in terms of sugar content. Indicators of morphological characteristics of sweet sorghum varieties grown in Tajikistan exceeded those grown in the Volga region, which may be due to a hotter climate and a large amount of solar radiation. Thus, in different regions, the same plant varieties may exhibit phenotypic traits to varying degrees, depending on the characteristics of cultivation, which must be taken into account when zoning varieties for different regions of Africa. Key words: Food security, chicory root, varieties of Russian selection, agricultural technology, Apron, Isabion.
