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《Journal of Agricultural Science and Technology》 2017-11
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Effects of Genotypes and Environments and Their Interactions on Maize Disease,Yield and Quality

DUAN Pengfei;ZHAO Di;Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province; Collaborative Innovation Center of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project; College of Agricultural Engineering,Nanyang Normal University;College of Environmental Science and Tourism,Nanyang Normal University;  
The formation of disease,yield and quality of maize needs the combination of genetic characteristics and environmental factors. In this study,the effects of genotypes,environment and their interaction on seed yield,disease resistance and quality of maize were investigated using 19 maize varieties. The results showed that seed yield,disease resistance and quality were the synergistic results of both heredity properties and environment factors. The stability of maize quality was not only controlled by genotypes,but also influenced by the interaction between genotype and environment. Genotype was the internal factor which determined differences among varieties in different ecotypes for seed yield,disease resistance and maize quality. The main external factors interacting with genotype were corn growth parameters such as planting time( sowing date and growth stage,etc.) × area characteristics( resources and stress,etc.). Among the external factors,the greatest influence on disease,yield and quality of maize in different ecological zones was annual climate variability. While,the temperature,rainfall,and humidity were meteorological conditions positively correlated with disease( bending spore leaf spot and southern rust). The positive correlation of yield with light had the highest coefficient( 0.21). Crude starch was positively correlated with average temperature,and crude fat was positively correlated with light. With decreasing latitude in different ecological zones,rainfall tended to increase after the silking stage,aggravating the disease,and reducing yield.
【Fund】: The Special Project of Nanyang Normal University(ZX2014074);; Key Research Projects of Henan Education Department(15A210043);; National Natural Science Foundation of China (31501260) supported
【CateGory Index】: S435.13;S513
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