Gene effects for resistance to thrips and mites in chilli (Capsicum annuum L.)

Abstract

Thrips and mite cause leaf curl complex of chilli (Capsicum annuum l.) resulting in extensive damage to yield. Information on nature of gene effects of these pest is limited. Nine crosses involving six parents having varied level of resistance were studied in a six generation mean anlysis. Leaf curl index (LCI) for thrips was found to be predominantely under the control of non additive gene action with duplicate type of gene interaction. Whereas, non additive gene interaction was observed for LCI mites. Recurrent selection followed by pedigree breeding or population improvement approach are suggested to develop resistant varieties.