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Volume 8 Issue 2
Jun.  2017
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Article Navigation >  Journal of Tropical Biology  > 2017  >  8(2): 203-208

DONG Rongshu, ZHANG Jie, CHEN Zhijian, BAI Changjun, DING Xipeng, WANG Wenqiang, LIU Guodao. Analysis of Optimum Molybdenum Concentrations in a Symbiotic System of Stylosanthes guianensis ‘Reyan No.2’ Inoculated with Different Rhizobium Strains[J]. Journal of Tropical Biology, 2017, 8(2): 203-208. doi: 10.15886/j.cnki.rdswxb.2017.02.013
Citation: DONG Rongshu, ZHANG Jie, CHEN Zhijian, BAI Changjun, DING Xipeng, WANG Wenqiang, LIU Guodao. Analysis of Optimum Molybdenum Concentrations in a Symbiotic System of Stylosanthes guianensis ‘Reyan No.2’ Inoculated with Different Rhizobium Strains[J]. Journal of Tropical Biology, 2017, 8(2): 203-208. doi: 10.15886/j.cnki.rdswxb.2017.02.013
shu

Analysis of Optimum Molybdenum Concentrations in a Symbiotic System of Stylosanthes guianensis ‘Reyan No.2’ Inoculated with Different Rhizobium Strains

doi: 10.15886/j.cnki.rdswxb.2017.02.013

  • 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 571737, China

  • Received Date: 2017-01-07
  • Rev Recd Date: 2017-03-10
  • To understand the effect of different molybdenum concentrations on interaction of Stylosanthes guianensis ‘Reyan No. 2’with different rhizobium symbiotic system,two-factor randomized block design were arranged in this experiment,and the Stylosanthes seedlings inoculated with three rhizobium strains were planted in pots filled with sand containing seven different molybdenum concentrations. They were determined in terms of dry weight,plant height,plant nitrogen content,nodule numbers and nitrogenase activity to evaluate the effect of molybdenum on the syntaxial system by principal components analysis. The results showed that molybdenum had little effect on nodule numbers of S. guianensis ‘Reyan No. 2’inoculated with different rhizobium strains,but on the plant height and fresh weight mainly due to the effect of molybdenum on nitrogenase activity. The optimal molybdenum concentrations for different rhizobium strains were different. The optimal molybdenum concentrations for RJS9-2,YM11-1 and PN13-3 were 1 000-1 500 mg·L-1,1 000-2 000 mg·L-1and 2 000-2 500mg·L-1,respectively.
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Analysis of Optimum Molybdenum Concentrations in a Symbiotic System of Stylosanthes guianensis ‘Reyan No.2’ Inoculated with Different Rhizobium Strains

doi: 10.15886/j.cnki.rdswxb.2017.02.013
  • 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 571737, China
  • Received Date: 2017-01-07
  • Rev Recd Date: 2017-03-10

Abstract: To understand the effect of different molybdenum concentrations on interaction of Stylosanthes guianensis ‘Reyan No. 2’with different rhizobium symbiotic system,two-factor randomized block design were arranged in this experiment,and the Stylosanthes seedlings inoculated with three rhizobium strains were planted in pots filled with sand containing seven different molybdenum concentrations. They were determined in terms of dry weight,plant height,plant nitrogen content,nodule numbers and nitrogenase activity to evaluate the effect of molybdenum on the syntaxial system by principal components analysis. The results showed that molybdenum had little effect on nodule numbers of S. guianensis ‘Reyan No. 2’inoculated with different rhizobium strains,but on the plant height and fresh weight mainly due to the effect of molybdenum on nitrogenase activity. The optimal molybdenum concentrations for different rhizobium strains were different. The optimal molybdenum concentrations for RJS9-2,YM11-1 and PN13-3 were 1 000-1 500 mg·L-1,1 000-2 000 mg·L-1and 2 000-2 500mg·L-1,respectively.

DONG Rongshu, ZHANG Jie, CHEN Zhijian, BAI Changjun, DING Xipeng, WANG Wenqiang, LIU Guodao. Analysis of Optimum Molybdenum Concentrations in a Symbiotic System of Stylosanthes guianensis ‘Reyan No.2’ Inoculated with Different Rhizobium Strains[J]. Journal of Tropical Biology, 2017, 8(2): 203-208. doi: 10.15886/j.cnki.rdswxb.2017.02.013
Citation: DONG Rongshu, ZHANG Jie, CHEN Zhijian, BAI Changjun, DING Xipeng, WANG Wenqiang, LIU Guodao. Analysis of Optimum Molybdenum Concentrations in a Symbiotic System of Stylosanthes guianensis ‘Reyan No.2’ Inoculated with Different Rhizobium Strains[J]. Journal of Tropical Biology, 2017, 8(2): 203-208. doi: 10.15886/j.cnki.rdswxb.2017.02.013
shu

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