Abstract
Soil samples from 10 different regions in Andhra Pradesh were collected and plants of Sesbania sesban (L.) Merr. were raised in pots containing each kind of soil. The chemical and physical properties of each kind of soil were broadly similar. Root nodulation characters of the Sesbania sesban were studied at 50 DAS. Highest nodule number was observed in plants raised in SS3 region. The Rhizobium isolates were obtained from root nodules of S. sesban grown in these soils. The plants inoculated with SSR-7 and SSR-8 gave maximum nodule number and biochemical constituents.
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