Record ID No. |
1103 |
Author(s) |
Kumutha,K., Sempavalan,J., Santhanakrishnan,P , 2004 |
Affiliation |
Department of Agricultural Microbiology, Tamil Nadu Agrl. University, Coimbatore - 641 003, India. |
Title |
Effect of insoluble phosphate and dual inoculation on soybean |
Source. Vol.(no):Page |
Biofertilizers-technology. 354-358p. |
Categories |
Mycorrhiza General |
Subjects |
Biological Interaction |
Sub-subjects |
Nodule forming nitrogen fixers |
Host |
Glycine max |
Organism |
Glomus fasciculatum, Rhizobium japonicum [Bradyrhizobium japonicum] |
Country |
India, Asia |
Abstracts |
A pot culture experiment was conducted to study the influence of different P sources on the growth and nutrient uptake of soyabean (variety CO1) inoculated with Glomus fasciculatum individually and in combination with Rhizobium japonicum [Bradyrhizobium japonicum] (SB. 101). Two sources of P, viz., superphosphate and Mussoorie rock phosphate were selected. Dual inoculation of both organisms produced higher dry weight, nodule weight, vesicular arbuscular mycorrhiza (VAM) colonization and nutrient uptake of N and P than individual inoculants or control at different sources of P. Mussoorie rock phosphate generally exhibited lesser magnitude of growth response and nutrient uptake than superphosphate due to inoculation of inoculants. However, dual inoculation exhibited better nodulation, nutrient uptake and phosphatase [phosphoric monoester hydrolase] activity in Mussoorie rock phosphate over uninoculated control. Thus, microbial inoculants provide wide scope for the better utilization of Mussoorie rock phosphate. |