SYMBIOTIC EFFECTIVENESS OF NATIVE RHIZOBIUM ON DIFFERENT ADVANCED GENOTYPES OF SOYBEANSOHAN LAL DESHMUKH, S.B. GUPTA, D. DASH, S.K. NAG AND RAVINDRA SONIAbstract 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.
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