新審雜交水稻品種耐熱性評價

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摘要 在定量高溫和自然常溫條件下以耐熱性品種N22為對照，研究了近年審定的適應(yīng)四川生態(tài)區(qū)種植的35個雜交稻的耐熱性。篩選出耐熱品種9個，并通過耐熱指數(shù)將35個雜交水稻品種分為耐熱能力不同的4類，可為水稻生產(chǎn)布局提供科學(xué)依據(jù)。

關(guān)鍵詞 雜交水稻;抽穗開花期;耐熱性;耐熱指數(shù)

中圖分類號 S 511文獻(xiàn)標(biāo)識碼 A文章編號 0517-6611（2022）02-0042-03

doi：10.3969/j.issn.0517-6611.2022.02.012

開放科學(xué)（資源服務(wù)）標(biāo)識碼（OSID）：

Evaluation of Heat Resistance of Newly Approved Hybrid Rice Varieties

LIU You-quan，WANG Wei （Sichuan Preschool Educators College，Mianyang，Sichuan 621000）

Abstract Under the conditions of quantitative high temperature and natural normal temperature，the heat resistant variety N22 was used as a control to study the heat resistance of 35 hybrid rices that were approved in recent years and adapted to planting in the Sichuan ecological region.9 heat resistant varieties were screened out，and 35 hybrid rice varieties were divided into 4 types with different heat-resistant abilities through the heat resistant index，which can provide a scientific basis for the layout of rice production.

Key words Hybrid rice;Flowering stage;Heat resistance;Heat resistance index

作者簡介 劉友權(quán)（1972—），男，四川鹽亭人，副教授，碩士，從事生物學(xué)教學(xué)研究工作。（剩余4490字）