Performance evaluation of potato clones for the central Terai Region of Nepal

Abstract

A series of experiments were carried out to evaluate the performance of exotic potato clones including PRP lines at research field of Regional Agricultural Research Station (RARS), Parwanipur, Bara, Nepal during the winter seasons of 2017 and 2018. Thirty-nine potato clones were evaluated in initial evaluation trial and eleven clones were evaluated in coordinated varietal trial with check varieties Khumal Ujjwal and Kufri Jyoti. From the initial varietal trial in 2017, the highest tuber yield (21.54 mt/ha) was found in CIP389660.9 followed by CIP391046.14 (21.38 mt/ha). In 2018, the highest tuber yield (29.72 mt/ha) was produced in CIP392759.1 followed by CIP393085.5 (26.92 mt/ha) and CIP391046.14 (26.64 mt/ha). In 2018, the tuber yield was the highest (26.12 mt/ha) in PRP 266265.15 followed by CIP 393371.159 (24.79 mt/ha). In coordinated varietal trial carried out in 2017/18, the highest tuber yield was noted in CIP394600.52 (42.65 mt/ha) followed by CIP395443.103 (30.83 mt/ha) and CIP395445.16 (24.43 mt/ha) respectively. Whereas in 2018/19, the highest yield was produced by PRP266265.15 (26.12 mt/ha) followed by CIP393371.159 (24.79 mt/ha) and CIP 396012.266 (22.66 mt/ha) respectively. In RARS, Parwanipur conditions, CIP 394600.52, CIP 395443.103, CIP 395445.16 and CIP 304394.56 along with PRP 266265.15 were found to be superior to standard check variety. These potential genotypes need to be further verified in farmers field in additional districts of central Terai region before notifying in the national seed system. Adoption of these clones as variety may increase the potato production and improve the food, and nutritional security in the central Terai region of Nepal.

Evaluation of Potato Genotypes under High Hill Conditions of Nepal

“…Significant variations of potato varieties in tuber yield were also reported [36]. A similar result of the differential performance of total tuber yield (t/ha) of potato was reported [37][38][39][40].…”

Performance of Potato Genotypes at Farmer’s Field in Jumla, Nepal

“…Besides genotypes, management practices, seed quality and agro-ecological condition of the experimental site also affect the yield of tubers [15].As per the yield performance of these genotypes (23.12 t/ha to 26.24 t/ha) with-out use of chemical fertilizer, it indicates that these genotypes have genetic potentiality to perform better under Jumla condition of Nepal. In a recent study conducted by some researchers [36] tuber yields were significantly different between clones received from International Potato Center. Similar type of significant yield difference among potato genotypes were also reported by other researchers [33,34,37].…”