Abstract

                                Chinese potato (Coleus parviflorus Benth) mutants numbering twelve obtained from a mutation breeding program and its control were evaluated for the extent of variation in yield and quality attributes. In general there was significant variation among the mutants as well as between mutants and control. Canopy spread and top yield (biomas) was less in mutants as compared to the control resulting in an improved harvest index. In mutants with less number of tubers the yield per plant achieved was greater than in control due to uniformity of tubers. Besides, in some of the mutants the tuber production was restricted at the base only which made the harvest easy. There was variation in the quality traits both towards positive and negative directions. Based on the overall performance few mutants showed superior performance in terms of yield and quality than the control.

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