中国稻米

中国稻米

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寒地水稻抗旱品种的筛选与鉴定

  1. 1黑龙江省农业科学院绥化分院，黑龙江 绥化 152052； 2黑龙江省龙科种业集团有限公司，哈尔滨 150086
  • 出版日期:2018-05-20 发布日期:2018-05-20
  • 基金资助:

    黑龙江省农业科学院2017年度院级科研项目“优质、多抗、香粳型水稻种质资源创新及新品种选育”  （2017XQ20）

Screening and Identification of Drought Resistant Rice Varieties in Cold Region

  • Online:2018-05-20 Published:2018-05-20

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摘要：

针对黑龙江省水资源短缺现象加剧及干旱灾害时有发生的情况，采用田间直接鉴定法，对黑龙江省第二、第三积温带具有代表性的水稻品种进行抗旱性筛选与鉴定。结果表明，绥粳3号、绥粳8号、绥粳18、龙粳31等4个品种抗旱性较好；影响水稻抗旱性的第一主因子为4叶1心期根系活力，第二主因子为分蘖盛期根系活力，第三主因子为有效穗数，第四主因子为穗粒数，第五主因子为强势粒灌浆速率，第六主因子为播抽历期。

关键词: 水稻, 抗旱性, 相关性, 主成分分析

Abstract:

According to the situation of water resources shortage and drought disaster in Heilongjiang Province, a test was carried up to screening and identification the drought resistance rice varieties of the second and the third accumulated temperature zone in Heilongjiang Province. The results showed that, the drought resistance of Suigeng 3, Suigeng 8, Suigeng18 and Longgeng 31 were better; the first main factor affecting the drought resistance of rice was root activity of seedlings stage, and then followed by root activity of active tillering stage, effective panicle number, grain number per spike, filling rate of superior grain and days from sowing to earing．

Key words: rice, drought resistant, correlation, principal component analysis

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