Abstract

Twenty nine species belonging to nineteen genera included in the tribe Andropogoneae (Gramineae) were studied morphologically and cytologically. Out of these 7 species were diploid and 22 polyploid, Nine species were studied cytologically for the first time and twelve species were found to have both diploid and polyploid plants occurring in the same general area indicating origin of polyploidy in the recent past. In some species polyploidy was associated with hybridization, apomixis or both.

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