Pedosphere 9(2): 153--159, 1999
ISSN 1002-0160/CN 32-1315/P
©1999 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Effect of Rhizobium inoculation on growth and nodulation of Albizzia procera, Albizzia lebbeck and Leucaena leucocephala |
| U. K. ARYAL1, M. K. HOSSAIN1, M. A. U. MRIDHA2,3, H. L. XU2 and H. UMEMURA2 |
1 Institute of Forestry and Environmental Sciences, University of Chittagong (Bangladesh);
2 International Nature Farming Research Center 5632-Hata, Nagano-390-1401 (Japan);
3 Department of Botany, University of Chittagong (Bangladesh) |
| ABSTRACT |
| Effects of inoculation of Rhizobium suspension on nodulation and plant growth were examined with Albizzia procera, Albizzia lebbeck and Leucaena leucocephala seedlings grown on sterilized and non-sterilized soil media. Inoculation resulted in nodule number increases of 28.6, 29.02 and 23.9 times in sterilized soil and 3.4, 3.6 and 3.27 times in non-sterilized soil for A. procera, A. lebbeck and L. leucocephala seedlings respectively. Total dry mass increased by 127.6%, 66.7% and 60.7% in sterilized soil and 100%, 95.5% and 52.65% in non-sterilized soil for these three legume trees, respectively, after a period of two months. Significantly high inoculation responses of root length, root diameter, collar diameter, shoot length, and dry mass of root, shoot, leaves and nodules were also observed in both sterilized and non-sterilized soil media as compared to respective control treatments. The response to inoculation was strong in sterilized and modest in non-sterilized soils. The significantly higher response to Rhizobium inoculation over control in all the species tested suggested that application of Rhizobium greatly enhanced plant growth, nodulation, biomass production and nitrogen-fixing activity of the nodules. |
| Key Words: biomass production, nitrogen fixation, nodulation, Rhizobium suspension, symbiotic association |
| Citation: Aryal, U. K., Hossain, M. K., Mridha, A. U., Xu, H. L. and Umemura, H. 1999. Effect of Rhizobium inoculation on growth and nodulation of Albizzia procera, Albizzia lebbeck and Leucaena leucocephala. Pedosphere. 9(2): 153-159. |
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