Acta Agrestia Sinica

Acta Agrestia Sinica ›› 2015, Vol. 23 ›› Issue (1): 211-214.DOI: 10.11733/j.issn.1007-0435.2015.01.033

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Effects of Different Phosphorus Concentrations on the Symbiotic System of Stylosanthes guianensis ‘Reyan No.5’ Inoculation Rhizobium

DONG Rong-shu1, ZHANG Jie1, WANG Wen-qiang1,2, HUANG Yan-xia3, Bai Chang-jun1, HUAN Heng-fu1, LIU Guo-dao1,2   

  1. 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, Hainan Province 571737, China;
    2. Hainan Tropic Prataculturea Engineering Research Center, Danzhou, Hainan Province 571737, China;
    3. Institute of Agricultural Sciences of Longyan, Longyan, Fujian Province 364000, China
  • Received:2014-01-06 Revised:2014-07-27 Online:2015-02-15 Published:2015-01-31

供磷水平对‘热研5号’柱花草-根瘤菌共生体系的影响

董荣书1, 张洁1, 王文强1,2, 黄艳霞3, 白昌军1, 郇恒福1, 刘国道1,2   

  1. 1. 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, 海南 儋州 571737;
    2. 海南省热带草业工程技术研究中心, 海南 儋州 571737;
    3. 福建省龙岩市农业科学研究所, 福建 龙岩 364000
  • 通讯作者: 刘国道
  • 作者简介:董荣书(1983-),男,云南腾冲人,博士,主要从事豆科牧草根瘤菌的研究,E-mail:dongrongshu@126.com
  • 基金资助:

    现代农业产业技术体系建设专项基金(CARS-35-03);海南省工程技术研究中心建设专项(GCZX2013003)资助

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Abstract:

The interaction between Stylosanthes guianensis ‘Reyan No.5’ and Rhizobium symbiotic system affected by different phosphorus concentrations has yet to be well characterized. The syntaxial systems of Stylosanthes guianensis ‘Reyan No.5’ and seven rhizobium strains were identified by measuring the dry weight, nitrogen content, nodule number and nitrogenase activity of Stylosanthes. The results showed that the low concentrations of phosphorus were unfavorable for the growth of Stylosanthes and Rhizobium symbiotic system; At the high concentration of phosphorus, the YM11-1 and FS3-1-1 strains had the best effects on the nitrogen fixation of plant. The LZ3-2, RJS9-2, BS1-1 and CJ1 strains needed moderate phosphorus concentrations to promote the nitrogen fixation ability of plant, whereas the PN13-3 strains had no effect on the nitrogen fixation ability of plant at all tested phosphorus concentrations.

Key words: Stylosanthes guianensis ‘Reyan No.5’, Rhizobium, Phosphorus treatment, Nitrogen fixation, Promoting growth

摘要：

为研究不同供磷水平对热研5号柱花草(Stylosanthes guianensis‘Reyan No.5’) -根瘤菌共生体系的影响,利用水培试验对接种7株不同根瘤菌的柱花草进行3个磷浓度的处理,通过对柱花草干重、植株含氮量、根瘤数、固氮酶活性的测定及分析确定磷对共生体系的影响.结果表明:低磷不利于柱花草及根瘤菌共生体系的生长;菌株YM11-1, FS3-1-1在高磷时固氮促生效果最佳,菌株LZ3-2, RJS9-2, BS1-1, CJ1则在中等磷条件下固氮促生效果最佳,磷对菌株PN13-3的影响不大.

关键词: 热研5号柱花草, 根瘤菌, 磷处理, 固氮, 促生

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