Response of Different Maize Hybrids to High Temperature and Drought Stresses at Flowering Stage
ZHAO Xia
MU Xinyuan
MA Zhiyan
LIU Tianxue
QI Hongzhi
DING Yong
ZHANG Fengqi
ZHANG Jun
ZHAO Faxin
XING Jianwei
WU Donghong
TANG Baojun
Abstract：In order to screen and evaluate the maize hybrids with high resistance to high temperature and drought,the effects of drought and high temperature stresses on the growth and yield of six maize hybrids at flowering stage were studied by pool cultivation and high-temperature facilities.The results showed that drought,high temperature and their compound stresses prolonged the interval between male and female,decreased the specific leaf weight,relative chlorophyll content,grain number per ear and 100-grain weight and grain yield,and the influence of the compound stresses of drought and high temperature on the grain number per ear,100-grain weight and grain yield was higher than the single stress.Moreover,the response of the hybrids to drought and high temperature stresses was different,and the high temperature resistance was positively related with drought resistance.Analysis of resistance coefficient of drought and high temperature and subordinate function values of different varieties,Xundan 20,Zhengdan 958 and Zhengdan 538 had high resistance to high temperature and drought,Dika 653 had medium resistance,Nonghua 101 and Xianyu 335 had weak resistance.
Keywords：maizedroughthigh temperaturecompound stressresistance coefficient
Publication Date：2017-08-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：6( 32-37 )