穗期高温对玉米子粒灌浆生理及产量的影响

付景,孙宁宁,刘天学,马俊峰,杨豫龙,赵霞,穆心愿,李潮海

The Effects of High Temperature at Spike Stage on Grain-Filling Physiology and Yield of Maize

Jing Fu,Ningning Sun,Tianxue Liu,Junfeng Ma,Yulong Yang,Xia Zhao,Xinyuan Mu,Chaohai Li

表3 子粒淀粉合成相关酶活性与灌浆速率的相关性

Table 3 Correlations of activities of related enzymes to starch synthesis with grain-filling rate in grains

品种 Variety 处理 Treatment 淀粉合成相关酶活性Activities of related enzymes to starch synthesis 结合态淀粉合酶GBSS 可溶性淀粉合酶SSS 蔗糖合酶SS 蔗糖磷酸合酶SPS 郑单958 CK 0.891** 0.939** 0.892** 0.890** Zhengdan 958 T 0.977** 0.948** 0.998** 0.972** 先玉335 CK 0.883** 0.964** 0.938** 0.948** Xianyu 335 T 0.922** 0.985** 0.963** 0.958**