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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (24): 153-156.

所属专题： 水稻

• 农学 农业基础科学 • 上一篇    下一篇

黑龙江省主栽水稻品种耐延迟型冷害能力鉴定

孙世臣 张凤鸣 洛 育   

  • 收稿日期:2010-05-09 修回日期:2010-10-29 出版日期:2010-12-20 发布日期:2010-12-20
  • 基金资助:

    国家科技支撑计划项目

Identification of Cold Tolerance of Delay-type Cold Damage on Main Rice Varieties in Heilongjiang Province

  • Received:2010-05-09 Revised:2010-10-29 Online:2010-12-20 Published:2010-12-20

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摘要：

采用人工气候箱模拟低温的方法，对黑龙江省30个主栽水稻品种进行了萌发期和分蘖期耐冷性鉴定，以期筛选出耐延迟型冷害强的品种。结果显示，不同品种在萌发期耐冷性上差异较大，筛选出耐延迟型冷害较强的品种为龙粳16号、龙粳18号、龙粳22号和松粳12号，这些品种在10℃下低温发芽率高且分蘖期低温处理后延迟生育日数少，是可以作为直播栽培的品种。

关键词: 奶牛, 奶牛, 日粮诊断, 营养代谢性疾病, B/S模式

Abstract:

Cold tolerance of 30 main rice varieties were identified at sprouting stage and tillering stage by simulating low temperature in climate cabinate, the aim was to screened cold tolerance varieties on delay-type cold damage. The results showed that the difference was more among tested varieties, and screened varieties of high cold tolerance on delay-type cold damage were Longjing16, Longjing18, Longjing22 and Songjing12, of which germinating rate was high under 10 ℃ and delayed days was less after low temperature treatment at tillering stage. The screened varieties could be cultivated by method of direct sowing in paddy.

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