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中国农学通报

中国农学通报 ›› 2005, Vol. 21 ›› Issue (2): 129-129.

所属专题： 水稻

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优质抗病杂交粳稻滇杂31不同海拔适宜栽插密度初探

金寿林,张子安,刘正伟,谭学林   

  • 出版日期:2005-02-05 发布日期:2005-02-05

Preliminary Study on Optimum Planting Density of the Elite Hybride Rice DianZa31(japonic) in Different Altitude

Jin Shoulin, Zhang Zi’an, Liou Zhengwei, Tan Xuelin   

  • Online:2005-02-05 Published:2005-02-05

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摘要： 通过对优质抗病滇型杂交粳稻滇杂31不同栽插密度在云南温暖粳稻区的牟定县和温凉粳稻区的大理市进行试验，试验结果分析表明：滇杂31在温暖粳稻区的栽插密度以30.0万丛/hm2，2苗/丛产量最高，不同栽插密度之间产量差异达极显著水平；在温凉粳稻区的栽插密度以45.0万丛/ hm2，2苗/丛产量最高，不同栽插密度之间产量差异达显著水平。

Abstract: The planting density experiment of the elite Dian type(japonic) hybride rice DianZa31 were conducted in two different area .one is in Mouding county where it is in warm japonic rice area , Yunnan, the other is in Dali city where it is in cool-warm japonic rice area , Yunnan. The results show that, in warm japonic rice area ,Dianza31's optimum planting density is 300,000 hills per hm2 and two seedlings per hills; in cool-warm japonic rice area , it's optimum planting density is 450,000 hills per hm2 and two seedling per hill. the difference between the yields of different planting density is significant at 5% level in both experiments.