ZHANG Jie, DONG Rongshu, HUANG Yanxia, XUN Hengfu, LIU Guodao. The Impact of Rhizobium Bacteria Inoculation on the Growth of Stylosanthes guianensis Reyan 2 under Different pH Values[J]. Journal of Tropical Biology, 2012, 3(3): 232-235. doi: 10.15886/j.cnki.rdswxb.2012.03.009
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ZHANG Jie, DONG Rongshu, HUANG Yanxia, XUN Hengfu, LIU Guodao. The Impact of Rhizobium Bacteria Inoculation on the Growth of Stylosanthes guianensis Reyan 2 under Different pH Values[J]. Journal of Tropical Biology, 2012, 3(3): 232-235. doi: 10.15886/j.cnki.rdswxb.2012.03.009
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The Impact of Rhizobium Bacteria Inoculation on the Growth of Stylosanthes guianensis Reyan 2 under Different pH Values
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1. Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture, Danzhou 571737, China;
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2. College of Agronomy, Hainan University, Haikou 571737, China;
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3. Longyan Institute of Agricultural Sciences, Longyan 364000, China
- Received Date: 2012-05-21
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Abstract
Five strains of nitrogen fixing bacteria, Rhizobium, were inoculated onto Stylosanthes guianensis Reyan 2 water cultured under different acidity levels to observe their impact on the yield and nitrogen contents of S.guianensis Reyan 2. S.guianensis Reyan 2 showed higher dry weight and nitrogen contents under 3 acidic levels after inoculated with the rhizobium bacteria. Strain B4 inoculation treatment gave the highest yield at pH 3.5, while other strains inoculation treatments produced the highest yield and nitrogen content at pH 4.5, which were the same as the CK. Strain B4 was adapted to more acid environment, followed by Strains B1 and B2. All the strains of the rhizobium had great improvement on the growth of S.guianensis Reyan 2 water cultured under acidic conditions, and reduced the dry weight and nitrogen content of S.guianensis Reyan 2 with the increase of the acidity of the cultural solution.
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