Castor (Ricinus communis L.) belongs to monospecific genus Ricinus of Euphorbiaceae family and one of the most important non-edible oilseed crops grown in various countries throughout the World. Its chromosome number is 20(diploid). It is a sexually polymorphic monoceious species, protandrous and highly cross pollinated nature. Because of its hardiness, castor plays an important role in the economy of arid and semi-arid regions of the country. Castor is considered native to Ethiopian region of tropical East Africa and India. Castor seed contains 40-60% oil which is a non drying oil. It has...