Record ID No. |
2761 |
Author(s) |
Naik R R., Lakshman B C. , 2010. |
Affiliation |
Department of Post Graduate Studies in Botany (Microbiology Lab), Karnataka University, Dharwad (Karnataka), India. |
Title |
Effect of AM fungi PGPR and different soil nitrogen sources to improve growth and yield of paddy (cv. JAYA). |
Source. Vol.(no):Page |
International Journal of Plant Sciences, 5(1): 165-169p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Biological Interaction |
Sub-subjects |
Plant growth promoting rhizo bacteria |
Host |
Oriza sativa(paddy) |
Organism |
Glomus macrocarpum, Azotobacter chroococcum |
Country |
India, Asia |
Abstracts |
Arbuscular mycorrhizal fungi and plant growth promoting rhizobacteria have a wide range of application in sustainable low input agricultural systems. The use of these two organisms may contribute to reducing chemical fertilizers and aids in high yield productivity. Studies were conducted in the net house in the botanical garden. There were 16 unsterilized mixed soil inoculum treatments with control. Glomus macrocarpum, Azotobacter chroococcum and Glomus macro carpum+Azotobacter chroococcum at four different levels of nitrogenous fertilizer. Paddy plants inoculated with Glomus macrocarpum attained maximum height when nitrogen was added @ 44 kg/ha. The Azotobacter chroococcum inoculated plants, however, require less nitrogen that is 24 kg/ha to attain height at par with Glomus macrocarpum inoculated plants. Dual inoculated plants, irrespective of rate of nitrogen application produced maximum shoot biomass plants height, tiller number, 1000 grains weight N, P, in shoot than single inoculation. Effeminacy of AM fungi was significantly improved, when they were used along with Azotobacter chroococcum. The results of the present work strongly suggest that application of bioinoculants such as AMF and PGPR would enable farmers for optimizing paddy production with minimum input of inorganic fertilizers. |