文献类型： 外文期刊

作者： Jiang Chao-Qiang ¹ ; Quan Ling-Tong ³ ; Shi Feng ¹ ; Yang Na ³ ; Wang Chang-Hai ¹ ; Yin Xiao-Ming ¹ ; Zheng Qing-Song ¹ ;

作者机构： 1.Nanjing Agr Univ, Coll Resources & Environm Sci, Key Lab Marine Biol, Nanjing 210095, Jiangsu, Peoples R China

2.Anhui Acad Agr Sci, Tobacco Res Inst, Hefei 230031, Peoples R China

3.Nanjing Agr Univ, Coll Life Sci, Nanjing 210095, Jiangsu, Peoples R China

关键词： aloin;growth;nutrition distribution;polysaccharide;seawater irrigation

期刊名称：PEDOSPHERE （ 影响因子：3.911； 五年影响因子：4.814 ）

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收录情况： SCI

摘要： With increasing demand for irrigation water, agricultural scientists and planners pay more attention to the utilization of diluted seawater as an alternative source for irrigation of crops. A greenhouse pot experiment was conducted to study how seawater stress (SS) affects growth, water content, cationic accumulation, and active ingredients in leaves of Aloe vera after 30 d of growth in nutrient media with 0% (control), 22% (22% SS), and 42% (42% SS) seawater stress. Results indicated the SS did not change dry biomass of leaves and stems, but gradually decreased biomass allocation to roots with increasing seawater stress. Na+ and in Cl- A. vera plant did not increase obviously with a big increase in seawater percentage due to low transpiration of Aloe vera. 42% SS decreased N concentration in most plant organs, but did not change or increased P concentration. Seawater stress tended to decrease concentrations of K+ and Ca2+ in A. vera. However, seawater salinity tended to increase the concentrations of aloin concentration in top (young) and middle leaves, and there was no significant effect of both stresses on aloin concentration in base (old) leaves. The 42% SS treatment decreased polysaccharide concentrations only in the base leaves, but not in top and middle leaves. In summary, supplying suitably diluted seawater for 30 d could increase the qualities and value of A. Vera, without substantial effects on shoot dry biomass production.