Effects of Low-temperature Stress on Electric Conductivity and Fluorescence Parameters of Maize Seedling
Wei Shi · Yumi kexue · 2012
Using three maize varieties,through pot experiment to study the change of electric conductivity and fluorescence parameters under low-temperature stress.The results showed that the resistance of three varieties is Jin Yu 5Xing Ken 3Ji Dan 198.Membrane leakage and minimum chlorophyll fluorescence(F0) of the three varieties were increased;the Fv/Fm,Fv/F0,and NPQ were declining with low-temperature treatment time.This experiments show that light absorbed by chlorophyll for photosynthesis can be reduced.The PSⅡactive centers of maize leaves were injured under low-temperature stress.