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Indian Forester, Vol 126, No 9 (2000), Pagination: 957-960
Abstract
Dalbergia lanceolaria, an economically and agriculturally important large leguminous tree possesses ischolar_main nodules formed by a Gram negative bacterium which was identified to be a Rhizobium sp. The nodules are formed on younger ischolar_mains of the tree mostly in the rainy seasons within 6-8 inches(15.25- 20.30 cm) under the soil. The nodules are spherical in shape, unbranched and loosely attached to the ischolar_mains. The symbiont, a Rhizobium species, reaches its stationary phase of growth in a liquid medium in ten hours and is able to produce 39.2 μg/ml of Indole Acetic Acid in culture from L.tryptophan.