IGKM 05-18-2: identified as high yielding and multiple disease resistance rabi mungbean genotype for Chhattisgarh state

Abstract

To enhance the yield potential in the rabi season, a high yielding and multiple disease resistant mungbean genotype, IGKM 05-18-2 has been developed through pedigree method from cross between Pairy Mung x Pusa Vishal at IGKV, Raipur, Chhattisgarh. The entry was tested in multilocation trial (12 locations) for three years (2017-18 to 2019-20) followed by testing in All India Coordinated Research Project on MULLaRP for a period of two years (2019-20 and 2020-21). It was also screened for various pests and diseases under pathological trials of AICRIP. Based on three years data (2017-18 to 2019-20) in state multilocation trials, during Rabi season, the entry IGKM 05-18-2 (902.40 Kg ha-1) had shown 8.29 % yield increase over the best check i.e. Pairy Mung (833.27 Kg ha-1). Likewise, under All India Coordinated Research Project (AICRP on MULLaRP) this entry shown the 6.46 % yield advantage over the best check VBN 4 based on the mean performance in IVT and AVT-1 trials. In addition to the yield advantages, it shown multiple resistances to MYMV, Cercospora leaf spot, Powdery mildew and root rot in co-ordinated trials whereas, it was found resistant against PM, MYMV and Alternaria leaf spot at station trial. The entry IGKM 05-18-2 showed moderate insect pest infestation and was considered as promising entry. The entry IGKM 05-18-2 was found with moderate insect pest (thrips, whiteflies and maruca pod borer) infestation and considered as promising entry and the higher seed yield was recorded than Local check LGG 450. The data of the tested entry revealed the mungbean genotype, IGKM 05-18-2 is found to have high yield potential, multiple disease resistant and most suitable for cultivation in rabi season of the state. This improved line with enhanced resistance for multiple diseases can also be further used as a resistant donor for transfer disease resistance genes in other elite cultivars.