1Division of Plants Physiology, I.A.R.I., New Delhi-110012
2Forest Research Institute, Dehradun, U.P.
Division of Biochemistry, Indian Agriculture Research Institute, New Delhi-110012
Leaf nitrate reductase activity (NRA) was measured in fertilizer treated and non fertilizer treated chickpea plants. Fertilizer treated plants showed higher nitrate reductase activity. When leaf+petiole+stem and leaf+petiole were incubated in Hoagland solution separately, it was observed that NRA was more in the former part. Leaf NRA started declining when nitrate was excluded from the incubation medium. There was an enhancement of NRA in chickpea leaves when sucrose was included along with nitrate in the incubation medium. The possible role of nitrate flux, and photosynthates on nitrate reduction in chickpea, leaves is discussed.
