干湿交替灌溉对水稻花后同化物转运和籽粒灌浆的影响

徐云姬, 许阳东, 李银银, 钱希旸, 王志琴, 杨建昌

Effect of Alternate Wetting and Drying Irrigation on Post-anthesis Remobilization of Assimilates and Grain Filling of Rice

Yun-Ji XU, Yang-Dong XU, Yin-Yin LI, Xi-Yang QIAN, Zhi-Qin WANG, Jian-Chang YANG

表7 茎鞘中淀粉水解酶活性与物质运转的相关系数

Table 7 Correlation coefficients of starch hydrolytic enzymes activities in stems with carbon remobilization

与相关 Correlations with 茎鞘中α-淀粉酶活性 α-amylase activity in stems 茎鞘中β-淀粉酶活性 β-amylase activity in stems 茎鞘中NSC运转 NSC remobilization 0.90** 0.67* 茎鞘中NSC对产量的贡献率 Contribution of NSC to grain yield 0.93** 0.80** 茎鞘中淀粉运转 Starch remobilization in stems 0.94** 0.79** 茎鞘中13C 13C in stems -0.92** -0.77** 茎鞘中13C运转 13C remobilization in grains 0.92** 0.79** 籽粒中13C 13C in grains 0.91** 0.84**