Screening and preliminary evaluation of rice germplasm tolerant to high temperature

doi:10.14088/j.cnki.issn0439-8114.2019.24.005

Abstract

Abstract: Under the condition of extreme high temperature set by artificial climate chamber, the heat tolerance of 18 rice germplasms from different countries and regions between heading-flowering stage and grain filling stage was identified. Combining with the main agronomic characteristics of 18 rice germplasms under natural conditions in the field, the heat tolerance screening and preliminary evaluation of the tested rice germplasms were carried out. The results showed that there were significant differences in heat tolerance among germplasms. Three extremely heat tolerant rice germplasms, zy11, zy18 and zy67 were screened out with good agronomic traits.

Key words: heat tolerance, rice germplasm, seed setting rate, high temperature

CLC Number:

S511

LI Pei-de, ZHOU Lei, LI Zhen-lian, LIU Kai, XU Hua-shan, YANG Guo-cai, CHEN Zhi-jun, ZHA Wen-jun, LI San-he, YOU Ai-qing. Screening and preliminary evaluation of rice germplasm tolerant to high temperature[J]. HUBEI AGRICULTURAL SCIENCES, 2019, 58(24): 20-22.

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