Comprehensive appraisement of adversity resistance of hybrid maize varieties under drought and N-stress
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DOI:10.7606/j.issn.1000-7601.2005.05.04
Key Words: hybrid maize variety  drought and barren resistance  adversity resistance coefficient,adversity resistance index,subordinate function value
Author NameAffiliation
ZHANG Wei-xing College of AgronomyGuizhou UniversityGuiyang 550025ChinaChinanational Rice Research InstituteHangzhouZhejiang310006ChinaGraduate School of Chinese Academy of Agriculture SciencesBeijing 100081China 
ZHAO Zhi College of AgronomyGuizhou UniversityGuiyang 550025China 
ZHU De-feng Chinanational Rice Research InstituteHangzhouZhejiang310006China 
BAI Guang-xiao College of AgronomyGuizhou UniversityGuiyang 550025China 
FU Fang-jing College of AgronomyGuizhou UniversityGuiyang 550025China 
CAO Shao-shu Research Institute of Dryland CropsGuizhou Academy of Agricultural ScienceGuiyang 550006China 
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Abstract:
      Based on the field experiment, the adversity resistance coefficients (AC) and adversity resistance indexes (AI) of 9 different morphological and productive characters were used to study the adversity resistance of different genotype hybrid maize varieties under water and N-stress condition, by using the method of subordinate function. The results indicated that Qianyu3, Qian2599, Zunyu3, Qian2411, Guibi302, Zhongdan2 and Xinghuangdan89-2 were drought and barren resistant varieties, but Qiandan10, Qianxi4, Andan136, Qian2451 and Qianyu1 were adversity susceptible ones. The results of comprehensive evaluation by AC of yield, AI of yield, subordinate function value of AC, and subordinate function value of AI were basically consistent. It was suggested that these parameters be adopted to appraise the ability of adversity resistance in maize.