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Analysis on difference for drought responses of maize inbred lines at seedling stage

Xiande Liu, Xiaohui Li, Wenhua Li, Mingshun Li, Xinhai Li

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Abstract

Eighteen inbred lines were investigated for drought responses at seedling stage under water stress. Nine inbred lines (313, Han23, Zhongzi01, C8065, 52106, Zi330, X178, P138, HC) were found to be drought tolerant, which showed higher leaf area index, relative moisture content, photosynthesis and drought tolerant index, while the case is reverse for nine drought susceptible lines (Luyuan92, Yu12, Zhonghuang204, B73, Jinhuang96B, S7913, S37, Zheng22, Zong31). Leaf relative moisture content and drought tolerant index were two important traits indicating drought responses in maize at seedling stage. The results obtained in this paper provided useful information for germplasm screening and improvement at seedling stage in maize.

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What this paper is about

Eighteen inbred lines were investigated for drought responses at seedling stage under water stress. Nine inbred lines (313, Han23, Zhongzi01, C8065, 52106, Zi330, X178, P138, HC) were found to be drought tolerant, which showed higher leaf area index, relative moisture content, photosynthesis and drought tolerant index, while the case is reverse for nine drought susceptible lines (Luyuan92, Yu12, Zhonghuang204, B73, Jinhuang96B, S7913, S37, Zheng22, Zong31). Leaf relative moisture content and drought tolerant index were two important traits indicating drought responses in maize at seedling stage. The results obtained in this paper provided useful information for germplasm screening and improvement at seedling stage in maize.

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Available abstract

Eighteen inbred lines were investigated for drought responses at seedling stage under water stress. Nine inbred lines (313, Han23, Zhongzi01, C8065, 52106, Zi330, X178, P138, HC) were found to be drought tolerant, which showed higher leaf area index, relative moisture content, photosynthesis and drought tolerant index, while the case is reverse for nine drought susceptible lines (Luyuan92, Yu12, Zhonghuang204, B73, Jinhuang96B, S7913, S37, Zheng22, Zong31). Leaf relative moisture content and drought tolerant index were two important traits indicating drought responses in maize at seedling stage. The results obtained in this paper provided useful information for germplasm screening and improvement at seedling stage in maize.

Key concepts: Seedling, Germplasm, Drought tolerance, Inbred strain, Agronomy, Biology, Water content, Drought stress

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