T R Chapagain^*, B B Khatri^**, R K Shah^*** and J L Mandal^***
*NCARP, Pakhribas,^**NPRP, Khumaltar and ^***ARS, Pakhribas

Abstract

Improved potato clones selected from on-station trials were verified for two consecutive years 2009 and 2010 in the farmers' fields at Basantpur (2300 m) in Tehrathum district. Five potatoes clones namely CIP 396010.42, CIP 392661.18, CIP 393385.39, were compared with Desiree and Kufri jyoti in RCBD with four replications. These clones were evaluated for tuber yield and late blight disease tolerance. Among the tested clones the highest number of tuber per plot (369.5) was recorded in clone CIP 393385.39 while the highest mean yield was observed from Kufri Jyoti (23.67 t/ha) which was at par with CIP 393385.39 (22.61 t/ha). In addition to that clone CIP 393385.39 was found tolerant also to late blight disease. Both these clones were highly preferred by the participating farmers. Therefore, clone CIP 393385.39 should be recommended first for high hill rainfed potato production system of eastern development region of Nepal.