Groundnut/peanut is an important oilseed crop grown mainly for edible seeds. Oil content varies from 45 to 50%, depending on the varieties and agronomic conditions. Groundnut oil is edible oil used as refined oil for cooking. Oil is also used in cosmetic industries, lubricants, soap making, olein, stearin and their salts. Kernels are also eaten raw, roasted or sweetened. Groundnuts are similar in taste and nutritional values to tree nuts, such as almonds and walnuts.
Groundnut is legume crop with root nodules fixes atmospheric nitrogen and improves the soil fertility. It is widely grown in the tropics and subtropics. It is classified as both oil crop due to high oil content and grain legume.
Groundnut is majorly grown as rainfed crop. The plant is short-statured and self-pollinated crop. The pegs are positively geotropic which enter the soil, later swells to become the pods.