Bhim B. Khatri, Duryodhan Chaudhari , Buddhi P. Sharma and Surendra Sherstha

DOI

ABSTRACT

A preliminary study on potato cultivars was undertaken at Hattiban Research Farm Khumaltar, Lalitpur (1340 masl) during the years 2008/09 and 2009/10 to compare the responses of different advanced potato cultivars for their tolerance against moisture stresses. Completely rain-fed, rice-straw mulching and frequently irrigated conditions were considered as the moisture treatments in the trial. Among the assessed clones, CIP 394003.161, CIP 392243.17, CIP 391058.35 CIP 392242.25, Khumal Seto-1, CIP 378711.7, Ca x 27/40-7, CIP 396011.47, Primicia, CIP 391598.75, LBr 40, L 235.4, CIP 394007.55, Kufri Chipsona-2, NPI-106 and Ca x LBr 40.6 were found performing better than the check variety Kufri Jyoti in completely rain-fed conditions. In frequently irrigated treatment, clones CIP 391011.47, Ca x LBr 40.6, CIP 378711.7 and LBr 40 were superior, whereas in the mulching treatment, clone LBr 40 performed the best followed by 394003.161, Ca x LBr 40.6, CIP 391011.47, Kufri Jyoti, CIP 392250.56, Primicia, CIP 391598.75, CIP 392236.6, Khumal Seto -1, CIP 389746.2, 27/40, Des x LBr 43.18, CIP 800947 and 391058.35 respectively in assessed phenotypic, yield and its attributes compared to Kufri Jyoti and Desiree. This result clearly indicated that the overall performance of the clone was more under genetic control rather than the environment factors. Based on the preliminary results, the best performing clones will be further assessed in multi-locational varietal trials of National Potato Research programme in the future.