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2 持续干旱胁迫对开花期夏玉米叶片叶绿素含量的影响

Tab.2 Effects of continuous drought stress on chlorophyll content of summer maize leaves at the flowering stage

水分处理 Chla/(mg·g-1) Chlb/(mg·g-1) Chl(a+b)/(mg·g-1) Chl(a/b) T1 2.37±0.145a 0.48±0.042a 2.85±0.157a 4.91±0.144a T2 1.90±0.113b 0.40±0.105ab 2.30±0.220b 4.73±0.372b T3 1.68±0.220c 0.36±0.037b 2.04±0.139bc 4.67±0.335b T4 1.59±0.144c 0.35±0.409b 1.94±0.172c 4.54±0.157b T5 1.36±0.261cd 0.34±0.344b 1.70±0.184d 4.00±0.220c