SHOLI KOLLEKTSIYASI NAV VA NAMUNALARINING PAST HARORATDA UNIB CHIQISH KO‘RSATKICHINI BAHOLASH

Abstract

The article examines and analyzes germination of seeds of varieties and samples of rice collection of the Rice Research Institute, at low temperatures (15° C). According to the findings, the local variety of rice - ‘Iskandar’ taken as a test pattern, showed a higher germination rate at a low temperature than other tested and collection varieties. In this test pattern, the germination rate reached 17% within 3 days after incubation (DAI), while in 6 DAI it achieved 92%. Within 6 days after incubation, the germination rates in Mustaqillik, Lazurniy, and Tarona varieties were found to be 67%, 48%, and 30%, respectively, whereas within 8 DAI these achieved the range of 60-90%. Out of a total of 230 collection varieties and samples with germination rates of above 90%, there were 57% on the 7^th incubation day and 93% on the 8^th incubation day.