The Dry bean is at present regarded as one of the most important field crops on account of its high protein content and dietary benefits. The dry bean is an annual crop that thrives in a warm climate. It grows optimally at temperatures of 20 to 26°C.
The maximum temperature during flowering should not exceed 30°C. High temperatures during the flowering stage lead to the abscission of flowers and a low pod set, resulting in yield loss. Day temperatures below 20°C will delay pod development. Cultivated under rainfed conditions the crop requires a minimum of 400 to 500 mm of rain during the growing season, but an annual total of 600 to 650 mm is considered ideal.