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《Ecology and Environment》 2007-01
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The absorption and accumulation of aluminum and mineral nutrient in tea (Camellia sinensis) under different Al levels

LI Haisheng1, ZHANG Zhiquan2 1. Department of Biology, Guangdong Education Institute, Guangzhou 510303, China; 2. School of Life Sciences, Zhongshan University, Guangzhou 510275, China  
Aluminum pollution in soil not only affects growth and yield of crop plants, but also develops a potential risk to food health. A solution culture experiment was conducted to study Al and mineral nutrient absorption and accumulation of tea (Camellia sinensis) seedlings under 5 Al levels ranged from 0 to 20 mg·L-1. The results indicated that the contents of aluminum in root, stem increased with the increasing concentrations of aluminum in culture solution. The order of the Al content in different organs of tea seedlings was rootleaf stem treated with aluminum. According to the whole plant, the accumulation amount of aluminum in roots increased with the additions of aluminum, while the accumulation amount in the shoot and leaf relatively decreased. The absorption of tea seedlings to nutrient elements such as calcium, potassium, magnesium wasn’t significantly disturbed treated with aluminum, while the absorption to phosphorus was enhanced, to some extent, it reflected the endurance of tea plant to aluminum.
【Fund】: 国家自然科学基金项目(30470146);; 香港大学研究基金会资助项目(Rgc/97-98/52)
【CateGory Index】: S571.1
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