Pulses Production of India
India is largest producer of pulses in the world with 25 per cent share in global production. Chickpea, pigeonpea, mungnean, uradbean, lintil, and fieldpea are important pulses crop contributing 39 per cent, 21 per cent, 11 per cent, 10 per cent, 7 per cent and 5 per cent to the total production of pulses in the country. The total production was estimated 14.56 million tonnes and an area of 23.63 million hectares with average productivity 625 kg/ha. Climate change will surely have an adverse impact on productivity on account of reduction of total crop cycle duration. Most of the pulses like mungbean and uradbean short duration crop.
Impact of Temperature on Productivity
- Among the pulses, pigeonpea is very sensitive to abrupt fluctuations of temperatures either lower or higher extremes leading to massive flower drop.
- The negative impact of temperature extremities is largely compensated by regular fresh flush of flower that keep on appearing during the developmental stages as and when the temperature is favorable. However at extreme high temperature the serious adverse impact was observed on pod setting.
- For cool season pulse crops daily maximum temperature above 250C is considered as threshold level for heat stress, as it affects seed yield by reducing flowering, fertilization and seed formation.
- Cool season pulses such as chickpea, lentil lathyrus have reasonably high tolerance to wheat which enables them to set pod but filling of pods is seriously jeopardized at high temperature leading low productivity.
- Fieldpea is highly sensitive to heat at bloom. A brief exposure to high temperature during flowering cause heavy loss due to flower dropt and pod abortion and during filling. It can reduce seed set weight and accelerate senescence, resulting reduce the seed yield.
Submitted by Rahul Kumar on Wed, 20/01/2010 - 10:35