Groundnut is a tropical plant requires a long and warm growing season. It grows well in areas receiving 50 to 125 cm of well-distributed rainfall during growing season, abundance of sunshine and relatively warm temperature. Soil temperature is an important factor and its effects are critical on seed germination, emergence of seedlings, early plant growth, rate of flowering, and pod development. When soil temperature goes below 19°C, emergence of seedlings is low. The optimum temperature for vegetative growth of groundnut is ranging in between 26 to 30°C depending on the cultivar. Reproduction growth is maximum at 24-27°C. The maximum rate of growth of pods between 30 to 34 °C as it requires about a month of warm and dry weather. Light influences both photosynthesis and respiration in groundnut. The opening of flowers and number of flowers both depend on light.
What is the climatic requirement for groundnut farming?
