| 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 Name | Affiliation | | ZHANG Wei-xing | College of Agronomy,Guizhou University,Guiyang 550025,China；Chinanational Rice Research Institute,Hangzhou,Zhejiang,310006,China；Graduate School of Chinese Academy of Agriculture Sciences,Beijing 100081,China | | ZHAO Zhi | College of Agronomy,Guizhou University,Guiyang 550025,China | | ZHU De-feng | Chinanational Rice Research Institute,Hangzhou,Zhejiang,310006,China | | BAI Guang-xiao | College of Agronomy,Guizhou University,Guiyang 550025,China | | FU Fang-jing | College of Agronomy,Guizhou University,Guiyang 550025,China | | CAO Shao-shu | Research Institute of Dryland Crops,Guizhou Academy of Agricultural Science,Guiyang 550006,China |
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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. |
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