水分临界期持续干旱胁迫对夏玉米光合生理与产量形成的影响

张继波,李楠,邱粲,薛晓萍

Effect of Continuous Drought Stress During Critical Period of Water on Photosynthetic Physiology and Yield Formation of Summer Maize

Jibo ZHANG,Nan LI,Can QIU,Xiaoping XUE

表3 水分临界期持续干旱胁迫对夏玉米产量构成的影响

Tab.3 Effects of continuous drought stress on yield components of summer maize in critical period of water

水分处理 秃尖比/% 双穗率/% 株籽粒重/g 百粒重/g 理论产量/(g·m-2) T1 0.9±0.06d 3.0±0.15d 157.7±10.58a 31.8±2.69a 1100.0±6.59a T2 6.0±0.18c 33.0±1.35c 79.2±5.69b 27.5±2.14b 600.0±2.39b T3 6.0±0.23c 37.0±2.69c 77.3±4.87b 28.1±2.69b 500.0±3.15c T4 50.0±3.58b 60.0±3.54b 65.6±5.69c 27.6±1.58b 387.6±2.11d T5 70.0±6.21a 90.0±5.24a 60.3±3.22c 23.6±2.01c 300.0±1.85d