不同叶龄期晒田对水稻茎蘖动态与产量的影响  

Influence of Paddy Drying at Different Leaf Stages on the Stem-Tiller Dynamics and Yield of Rice

作　　者：黄春利[1] 

机构地区：[1]遵义市农业技术推广站,贵州遵义563000

出　　处：《大麦与谷类科学》2016年第3期16-19,共4页Barley and Cereal Sciences

摘　　要：为探索水稻晒田最佳时期,以杂交水稻中迟熟组合岗优827为材料,进行了不同叶龄期晒田处理试验。结果表明:叶龄11叶晒田处理岗优827产量最高,为887.1 kg/667 m2;10叶晒田处理次之,其产量为831.5 kg/667 m2;12叶晒田处理第3,其产量为804.8 kg/667 m2;不晒田处理产量最低,为753.7 kg/667 m2。说明在有效分蘖期或稍前够苗晒田能大幅度提高水稻岗优827产量。For identifying the optimal paddy field drying time,a field trial was performed using the hybrid late- maturing rice variety Gangyou 827. The trial comprised a control（ the paddy field was not treated by drying） and three treatments in which the paddy fields were dried at 10,11,and 12- leaf stages. As a result,the highest rice yield of 887. 1kg /667m^2 was attained in the field dried at 11-leaf stage,followed by the fields dried at 10- and 12- leaf stages with yields of 831. 5kg /667m^2 and 804. 8kg /667m^2,respectively; the yields in these treatments all exceeded that of the control（ 753. 7kg /667m^2）. The results indicate that the yield of rice can be significantly increased by drying the paddy field at effective tillering stage or slightly earlier; hence,this technique is worthy of promotion for rice cultivation.

关 键 词：水稻 岗优827 叶龄 晒田 产量 

分 类 号：S511[农业科学—作物学]