Bose Institute, Calcutta700009
* Present address: Jute Agriculture Research Institute Barrackpore, W. Bengal
† Present address: Indian Jute Industries Research Association, Calcutta 700053
** Deceased Feb. 21, 1978
The compensatory feedback control of dry matter production in rice plant (Oryza sativa L.) has been studied by defoliating or decapitating the plants after panicle emergence. Increase in photosynthetic activity of second leaves in absence of first leaf and an appreciable decrease in dry matter production in absence of sink (panicle) indicate that photosynthesis in the source organs is perhaps regulated by the demand in the sink organs.
