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Published online by Cambridge University Press: 27 March 2009
Legumes like Aschynomene, Neptunia and Sesbania possess nodules on their stems in addition to those on the roots (Barrios & Gonzelez, 1971; Dreyfus & Dommergues, 1981) and have the ability to grow under water. The most distinctive characteristic of all stem nodulating legumes in the presence of predetermined nodulation sites on the stem, the formation of which is independent of Rhizobiwm infection (Arora, 1954; Subba Rao, Tilak & Singh, 1980).