Mareen AbrahamShinoj, PKAU2020-11-022020-11-022003172121https://krishikosh.egranth.ac.in/handle/1/5810154085PGStability analysis of fourteen mutants of Coleus comprising of eleven promising mutants, two released varieties and one local cultivar was conducted at four locations in four districts of Kerala, namely, Palakkad, Malappuram, Thrissur and Ernakulam during Khariff, 2001. The selected mutants showed significant differences for many of the economic traits over locations. For increasing the tuber yield in Co le us, selection should be based on low tuber number, low starch content and high protein content. Further the tubers should be white coloured, delicious, non-groovy and smooth. The study revealed that the ideal plant architecture in Coleus should have optimum tuber number, white coloured delicious non-groovy tubers with optimum starch and protein content, good texture and medium flavour. The stability analysis identified mutants '641' and '352' as the most stable high yielding well adapted genotype for many of the economic traits over locations.EnglishThesis