Biology of rock bulrush (Schoenoplectus juncoides) in the wet land rice fields of south Kerala

S. Fathima Umkhulzum, M. Ameena, P. Shalini Pillai


Biology of rock bulrush (Schoenoplectus juncoides (Roxb.) Palla), an emerging sedge weed in the lowland rice fields of south Kerala was studied during rabi 2017-2018. It was observed to grow as an annual in cultivated lowlands but exhibited perennial nature in undisturbed fields. The weed completed its life cycle through five phenological stages viz,. germination, seedling, flowering, spike development and seed maturity. Prolific seed production (528–1120 seeds/plant) and sprouting of vegetative buds from rhizomes make rock bulrush a persistent weed.


biology, phenology, propagation, rock bulrush, rhizome, sedge weed

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