Department of Vegetable Crops, Dr. Y.S. Parmar University of Horticulture and Forestry, Nauni, Solan 173230
*Present address: Assistant Professor, Deptt, of Vegetable Science & Floriculture, HPKV, Palampur 176062.
Genetic studies in seven quantitative traits of carrot viz. root yield, root length, root girth, root weight, leaf weight, root-top ratio and leaf length were conducted in a triple test cross design to determine the role of additive, dominance and epistatic gene effects for inheritance of these traits involving parents of Asiatic and European origin. Epistasis was observed for root length, root weight, leaf weight and leaf length. Additive × dominance (j) and dominance × dominnance (1) gene interactions were significant for root yield, while both additive and non-additive components of genetic variation were prevalent in root length, root weight, leaf weight, leaf length and root girth. Additive gene effects were more pronounced for root-top ratio. Overdominance was observed in other characters also.
