SOHAN LAL DESHMUKH, S.B. GUPTA, D. DASH, S.K. NAG AND RAVINDRA SONI
Abstract
Symbiotic effectiveness of native Rhizobium on genotypes of soybean was studied with nine advanced genotypes, i.e. RKS-113, NRC-93, MACS-1407, KDS-705, JS-2071, DSb-19, Bragg, RKS-18 and JS-9752. Data reveals that highest fresh weight (20.64 g/plant), dry weight of shoot (3.88 g/plant), N-uptake in nodule (5.4 mg/plant), dehydrogenase activity of soil 96.2(µg.TPF/g/hr. soil), rhizobial population (9.81×104 /g soil), grain yield (29.72q/ha), straw yield (47.51q/ha) were associated with soybean variety NRC-93. Whereas maximum plant height (58.13 cm) was associated with Dsb-19. The poorest performance was observed in case of Bragg. Overall findings indicate the better performance of NRC-93 on the basis of its effective symbiosis with native Rhizobium followed by RKS-113.