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EVALUATION OF PHYSIOLOGICAL INDICES OF WATERLOGGING TOLERANCE OF DIFFERENT MAIZE VARIETIES IN SOUTH CHINA

文献类型： 外文期刊

作者： Li, W. 1 ; Mo, W. 1 ; Ashraf, U. 3 ; Li, G. 1 ; Wen, T. 1 ; Abrar, M.; Gao, L. 1 ; Liu, J. 1 ; Hu, J. 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Crops Res Inst, Guangdong Prov Key Lab Crop Genet Improvement, Guangzhou, Guangdong, Peoples R China

2.South China Agr Univ, Coll Agr, Dept Crop Sci & Technol, Guangzhou 510640, Guangdong, Peoples R China

3.Univ Agr Faisalabad, Dept Agron, Faisal

关键词： antioxidant enzymes; chlorophyll; maize; root; waterlogging stress

期刊名称：APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH （ 影响因子：0.711； 五年影响因子：0.796 ）

ISSN： 1589-1623

年卷期： 2018 年 16 卷 2 期

页码：

收录情况： SCI

摘要： Maize is extremely sensitive to waterlogging stress. A pot experiment was conducted to study the morpho-physiological characteristics of 18 differrent maize cultivars (widely grown in South China) under waterlogging stress at seedling stage. Results showed that maize shoot growth was inhibited in terms of plant height and dry weight whilst leaf chlorophyll contents were also decreased under waterlogging stress. Root length, root hairs, root surface area and root volume were also declined under waterlogged conditions. Furthermore, activity of antioxidants i.e., superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) were increased considerably under waterlogging stress compared to control. The soluble protein content also increased in some maize cultivars whereas malondialdehyde (MDA) contents were found to be decreased in some cultivars that may be due to higher antioxidant enzyme activities. Furthermore, the principal component analysis (PCA) showed that the coefficients of comprehensive indices (Z) for protein contents, SOD, POD and CAT were higher in Z1, the soluble protein content and MDA content in Z2 while the SPAD and F-v/F-m values in Z3 were remained higher than other parameters.

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