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中国农学通报

中国农学通报 ›› 2004, Vol. 20 ›› Issue (3): 84-84.

所属专题： 水稻

• 目次 • 上一篇    下一篇

水稻强化栽培下协优9308的产量及穗粒结构研究

梁尹明,林贤青,孙永飞,朱德峰,石国安   

  • 出版日期:2004-06-05 发布日期:2004-06-05

Study on yield and its components of Xieyou 9308 under the system of rice intensification

Liang Yingming，Lin Xianqing，Sun Yongfei，Zhu Defeng，Shi Guoan   

  • Online:2004-06-05 Published:2004-06-05

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摘要： 超级杂交稻协优9308应用水稻强化栽培，移栽密度为15.3株/m2到6.9株/m2。产量以密度15.3株/m2最高，比对照增产10%，主要表现在增粒增产。移栽密度显著影响产量和每穗实粒数(R12=0.9917**，R32 = 0.9339**)。水稻强化栽培各处理密度之间比较，产量随移栽密度的下降而下降，主要是由于单株分蘖和有效穗的增加，导致平均穗型变小。单株最高苗数和有效穗数与移栽密度成显著的相关（R82 = 0.9594**，R92 = 0.9506**）。因此，在推广水稻强化栽培时应重视适宜移栽密度的选择及综合技术配套。

Abstract: Xieyou 9308, a super hybrid rice, was carried out in the experiment of the system of rice intensification at Xinchang in Zhejiang province. The transplanting density was arranged from15.3 hill/m2 to 6.9 hill/m2. The density of 15.3 hill/m2 had the highest yield in the experiment; comparing with CK, the yield was increased by 10%, which was higher filled grain number. The transplanting density significantly affected yield and filled grain per panicle(R12=0.9917**，R32 = 0.9339**) . Among the treatments of the densities under the system of rice intensification, the less density had the lower yield, because higher tillers and panicle per hill lead to lower average grain per panicle. The highest tillers and effective tillers remarkably correlated with the transplanting density（R82 = 0.9594**，R92 = 0.9506**）. It is important for selecting the suitable transplanting density and integrated management of Xieyou 9308 under the system of rice intensification to extend.