Abstract
Green house investigation was conducted to study the interaction of Rhizobium and Glomus macrocarpum on Albizia lebbeck. Two efficient Rhizobium strains (R1 and R2) were used. Glomus macrocarpum was applied to the soil @ 8.94 g/pot which contained 12,500 infective propagules. A total of six treatments were given using different combinations and the observations were recorded for over three months. The shoot height, shoot, root and nodule dry weight, the nitrogen and phosphorus contents of root and shoot were studied. Shoot length was found to be significantly higher in both dual inoculated treatments. The same trend was observed with respect to shoot, nodules and total dry weight. The shoot nitrogen content differed significantly but not root nitrogen content. The shoot P content was found to be maximum in VAM treatment followed by dual inoculations with R1. The root P content was found to be higher in VAM inoculated and dual inoculated treatments. It was highest in R2 plus VAM treatment.
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