中国稻米 ›› 2014, Vol. 20 ›› Issue (3): 44-47.DOI: 10.3969/j.issn.1006-8082.2014.03.009

• 品种与技术 • 上一篇    下一篇

西南杂交水稻抽穗开花期耐热性筛选

  1. 四川省农业科学院水稻高粱研究所,四川 德阳 618000
  • 出版日期:2014-05-20 发布日期:2014-05-20
  • 基金资助:

    公益性行业(农业)科研专项(201203029);国家水稻产业技术体系;国家粮食科技丰产科技工程 (2011BAD16BO5-1)

Screening of Heat Resistance at Flowering stage in Hybrid Rice in the Southwest China

  • Online:2014-05-20 Published:2014-05-20

摘要: 利用人工气候室,以相对受精率为耐热能力评价指标,对西南地区生产上大面积使用的62个杂交水稻品种进行抽穗开花期耐高温特性鉴定。筛选出相对受精率≥60%的品种9个,并通过聚类分析将62个杂交水稻品种分为耐热能力不同的3类,为水稻生产布局提供科学依据。

关键词: 水稻, 抽穗开花期, 耐热性, 聚类分析

Abstract: Based on the relative spikelet fertility rate, 62 hybrid rice combinations were tested through artificial climate chamber appraisal at flowering stage in southwest China. There are 9 hybrid rice combinations be screened in the test,which relative spikelet fertility rate are more than 60%. And the 62 hybrid rice combinations were classified into 3 groups with different heat resistance based on clustering analysis. These results can provide a scientific basis for rice production layout.

Key words: hybrid rice, flowering stage, heat resistance, clustering analysis

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