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《Journal of Fruit Science》 2006-05
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Distribution of salty ions in different vegetative organs of Lycium bar-barum cultivated in salinized land

LIN Hai-ming, WANG Long-qiang, JIA Hui-xian, XIAO Wen (Agronomy College, Gansu Agricultural University, Lanzhou, Gansu 730070 China; Science College, Gansu Agricultural University, Lanzhou, Gansu 730070 China)  
In order to research deeply the physiological mechanism of Lycium barbarum L. adapting to salinized land, distribution of three kinds of salty ions in its different vegetative organs and the effect of tree age on salt content were studied. The results indicated that the contents of Na+、K+ and Cl- in different vegetative organs were different. The contents of Na+ and Cl-were the highest in old leaves, then young leaves and stems, and the lowest was in thin roots. The content of K+ was also different among organs, i.e. young leavesstemsold leavesthin roots. As a whole, the contents of Na+、K+ and Cl- in overground parts were 5.303, 4.645 and 4.180 times those in underground parts respectively. The contents of salty ions in vegetative organs were also different with tree ages. Compared with one-year old tree, the contents of Na+ in old and young leaves of 4-year old tree were 18.77% and 52.01% less, Cl- 23.56% and 18.07% less, K+ 46.48% and 59.35% more, respectively; On the other hand, the contents of Na%K+ and Cl- in roots were 62.82% , 106.02% and 84.78% less respectively. From the above analysis, it could be concluded that L. barbarum L. grown in salinized land has its specific physiological mechanism adapting to salinized environment and the adaption would advanced after it was grown successively.
【Fund】: 国家科技攻关西部专项资助项目(2001BA901A33)。
【CateGory Index】: S567.19
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1 ZHI Huan-huan1,YANG Min-sheng1,ZHANG Hua-xin2,ZHANG Jun1,WANG Lian-rong3(1.College of Forestry,Agricultural University of Hebei,Baoding 071000,China;2.Chinese Academy of Forestry,Beijing 10091,China;3.Horticulture College,Hebei North University,Zhangjiakou 075131,China);Comparison analysis of salt tolerance in three kinds of landscape plants[J];Journal of Agricultural University of Hebei;2009-03
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