Optimal Concentration of Zinc Sulfate in Foliar Spray to Alleviate Salinity Stress in Glycine soja
文献类型: 外文期刊
作者: Jiang, W. 1 ; Sun, X. H. 3 ; Xu, H. L. 1 ; Mantri, N. 4 ; Lu, H. F. 1 ;
作者机构: 1.Zhejiang Sci Tech Univ, Coll Life Sci, Hangzhou 310018, Peoples R China
2.Zhejiang Acad Agr Sci, Zhejiang Inst Subtrop Crops, Wenzhou 325005, Peoples R China
3.Shaoxing Univ, Yuanpei Coll, Shaoxing 312000, Peoples R China
4.RMIT Univ, Hlth Innovat Res Inst, Sch Appl Sci, Melbourne, Vic 3000, Australia
关键词: Biomass;Chlorophyll fluorescence parameters;Nutrients;Photosynthetic activity;Salt tolerance;Soybean
期刊名称:JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY ( 影响因子:1.098; 五年影响因子:1.348 )
ISSN: 1680-7073
年卷期: 2014 年 16 卷 2 期
页码:
收录情况: SCI
摘要: Zinc has previously been reported to alleviate salinity stress in plants. In this study, we monitored various biomass and chlorophyll fluorescence parameters to determine the optimum zinc sulfate concentration that can be used as foliar spray to alleviate salinity stress in Glycine soja. The plants subjected to a series of salinity levels (NaCl concentration of 0, 100, 200, and 300 mmol L-1), applied via the nutrient solution, were sprayed with different concentrations of zinc sulfate (0, 5, 10, 15, 20, 25 mu mol L-1). The results showed that the biomass and chlorophyll fluorescence parameters of seedlings were significantly affected by salt stress (P < 0.05). However, zinc sulfate sprays helped the plants to cope with the stress condition. The zinc sulfate concentrations that helped G. soja to cope with the salinity stress of 100, 200, and 300 mmol L-1 were 15 to 20, 15 to 20, and 10 to 20 mu mol L-1, respectively. Lower zinc concentration was ineffective in alleviating stress and higher zinc concentration inhibited plant growth because of toxicological damage to plants. The zinc sulfate spray of 15 mu mol L-1 was found to be the most appropriate at all salinity stress levels. The growth measurements such as true leaves part and dry weight of total seedlings were in agreement with the chlorophyll fluorescence parameters, indicating a visible enhancement of leaf photosynthetic activity at 10-20 mu mol L-1 zinc concentrations.
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作者:Jiang, W.;Tao, Z. M.;Wu, Z. G.;Mantri, N.;Lu, H. F.;Liang, Z. S.;Jiang, W.;Tao, Z. M.;Wu, Z. G.;Mantri, N.
关键词:Camellia;Classification;Fractal analysis;RGB;SVM



