Journal of Science and Innovative Development ISSN 2181-4317

EVALUATION OF GERMINATION RATE OF RICE COLLECTION SAMPLES AND VARIETIES AT LOW TEMPERATURES

Ахтамов Миржалол Ахтам ўғли October 29, 2021

Abstract

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