| 稀释海水灌溉的芦荟中矿质营养与有效成分分布情况研究 |
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| 引用本文： | JIANG Chao-Qiang,QUAN Ling-Tong,SHI Feng,YANG N,WANG Chang-Hai,YIN Xiao-Ming,ZHENG Qing-Song. 稀释海水灌溉的芦荟中矿质营养与有效成分分布情况研究[J]. 土壤圈, 2014, 24(6): 722-730. DOI: 10.1016/S1002-0160(14)60059-X |
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| 作者姓名： | JIANG Chao-Qiang QUAN Ling-Tong SHI Feng YANG N WANG Chang-Hai YIN Xiao-Ming ZHENG Qing-Song |
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| 基金项目： | Supported by Jiangsu Provincial Independent Innovation Program of Agricultural Science and Technology, China （No. CX（12）1005-04）, Zhejiang Provincial Oceanic and Fishery Projects, China （No. [2013] 108） and the Major Scientific Research Projects of Zhejiang Province, China （No. 2012C12017-3）.ACKNOWLEDGEMENT The authors would like to thank Prof. Z. Rengel in the University of Western Australia for his helpful comments on this study. |
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| 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 Cl^- in 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 Ca^2＋ 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.
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| 关 键 词： | 芦荟素含量 海水胁迫 灌溉水 稀释 活性成分 养分分布 矿物 植物器官 |
| 收稿时间： | 2014-03-21 |
Distribution of mineral nutrients and active ingredients in Aloe vera irrigated with diluted seawater |
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| JIANG Chao-Qiang,QUAN Ling-Tong,SHI Feng,YANG N,WANG Chang-Hai,YIN Xiao-Ming and ZHENG Qing-Song. Distribution of mineral nutrients and active ingredients in Aloe vera irrigated with diluted seawater[J]. Pedosphere, 2014, 24(6): 722-730. DOI: 10.1016/S1002-0160(14)60059-X |
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| Authors: | JIANG Chao-Qiang QUAN Ling-Tong SHI Feng YANG N WANG Chang-Hai YIN Xiao-Ming ZHENG Qing-Song |
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| Affiliation: | 1College of Resources and Environmental Science, Key Laboratory of Marine Biology, Nanjing Agricultural University, Nanjing 210095 (China) 2Tobacco Research Institute, Anhui Academy of Agricultural Science, Hefei 230031(China)3College of Life Science, Nanjing Agricultural University, Nanjing 210095 (China) |
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| Abstract: | 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 Cl- in 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. |
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| Keywords: | aloin growth nutrition distribution polysaccharide seawater irrigation |
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