| 7株根瘤菌菌株与热研2号柱花草共生最适磷浓度研究 |
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| 引用本文： | 董荣书,张 洁,黄艳霞,白昌军,郇恒福,王文强,刘国道.7株根瘤菌菌株与热研2号柱花草共生最适磷浓度研究[J].热带作物学报,2014,35(5):832-836. |
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| 作者姓名： | 董荣书 张 洁 黄艳霞 白昌军 郇恒福 王文强 刘国道 |
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| 作者单位： | 1 海南大学农学院 2 中国热带农业科学院热带作物品种资源研究所农业部华南基因资源与种质创制重点实验室;中国热带农业科学院热带作物品种资源研究所农业部华南基因资源与种质创制重点实验室;福建省龙岩市农业科学研究所;中国热带农业科学院热带作物品种资源研究所农业部华南基因资源与种质创制重点实验室;中国热带农业科学院热带作物品种资源研究所农业部华南基因资源与种质创制重点实验室;中国热带农业科学院热带作物品种资源研究所农业部华南基因资源与种质创制重点实验室;中国热带农业科学院热带作物品种资源研究所农业部华南基因资源与种质创制重点实验室 |
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| 基金项目： | 现代农业产业技术体系建设专项（No. CARS-35）; 热带牧草种质资源保护（No. 14RZZY-09）。 |
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| 摘 要： | 采用水培的方法,设3个磷水平,7个菌株,通过对株高、茎叶鲜重、茎叶干重、固氮酶活性、茎叶氮含量、茎叶磷含量的测定及综合分析,确定使热研2号柱花草接种不同根瘤菌菌株达到最佳促生性能的磷浓度。结果表明:7个菌株在中磷时鲜重和含氮量最大,低磷不利于鲜重和含氮量的增加;经主因子综合分析,菌株YM11-1、RJS9-2、PN13-3在高磷时对热研2号柱花草有最好的固氮促生效果,菌株LZ3-2、BS1-1、PN13-3在中等磷条件下有最好的固氮促生效果,菌株FS3-1-1在高磷和中磷都有最好的固氮促生效果。
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| 关 键 词： | 热研2号柱花草 根瘤菌 最佳促生效果 |
Optimum P Concentration Promoting the Symbiotic Relationship Between Rhizobia Strains and Stylosanthes guianensis Reyan No.2 |
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| DONG Rongshu,ZHANG Jie,HUANG Yanxi,BAI Changjun,HUAN Hengfu,WANG Wenqiang and LIU Guodao.Optimum P Concentration Promoting the Symbiotic Relationship Between Rhizobia Strains and Stylosanthes guianensis Reyan No.2[J].Chinese Journal of Tropical Crops,2014,35(5):832-836. |
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| Authors: | DONG Rongshu ZHANG Jie HUANG Yanxi BAI Changjun HUAN Hengfu WANG Wenqiang and LIU Guodao |
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| Institution: | 1 College of Agronomy, Hainan University 2 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;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 Agricultur;Institute of Agricultural Sciences of Longya;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 Agricultur;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 Agricultur;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 Agricultur;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 Agricultur |
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| Abstract: | The hydroponic method was used to determine the optimum P concentration promoting the symbiotic relationship between 7 rhizobia strains and S. guianensis cv. Reyan No.2 under three levels of P concentration. The plant height, leaf fresh weight, leaf dry weight, nitrogenase activity, leaf nitrogen content, leaf phosphorus content were used as an integrated analysis to determine the optimum P concentration. Results showed that moderate P concentration leaded to the greatest leaf fresh weight and leaf nitrogen content while low P concentration was not effective to improve leaf fresh weight and leaf nitrogen content. Comprehensive analysis of the main components indicated that strains YM11-1, RJS9-2, PN13-3 at high P concentration, strains LZ3-2, BS1-1, PN13-3 at moderate P concentration, and strains FS3-1-1 at both high P and moderate P concentrations could all effectively promote nitrogen fixation for S. guianensis cv. Reyan No.2. |
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| Keywords: | Stylosanthes guianensis(Aublet)Swartz cv Reyan No 2 Rhizobium Optimum P concentration promoting |
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