Growth and Yield Characters of Potato Genotypes Grown in Drought and Irrigated Conditions of Nepal

  • Binod Prasad Luitel National Potato Research Programme, Nepal Agricultural Research Council, Khumaltar, Lalitpur
  • Bhim Bahadur Khatri National Potato Research Programme, Nepal Agricultural Research Council, Khumaltar, Lalitpur
  • Duryodhan Choudhary National Potato Research Programme, Nepal Agricultural Research Council, Khumaltar, Lalitpur
  • Bishnu Prasad Paudel National Potato Research Programme, Nepal Agricultural Research Council, Khumaltar, Lalitpur
  • Sung Jung-Sook National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration, 560-500
  • On- Sook Hur National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration, 560-500
  • Hyung Jin Baek National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration, 560-500
  • Ko Ho Cheol National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration, 560-500
  • Ryu Kyoung Yul National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration, 560-500
Keywords: canopy cover, drought, genotype, yield, drought susceptibility index

Abstract

This experiment was conducted to assess the genotypic variation for the growth, yield and yield components of potato grown under drought and irrigated conditions at Hattiban Research Farm, Khumaltar during the summer cropping season (Feb.-May) of the two consecutive years (2013 and 2014). The results revealed that canopy cover, stem height and number of leavers were more sensitive to drought and the effect was more pronounced in early cultivar Desiree. Stem height and leaf number of plant were more (36% and 45%, respectively) reduced in Desiree than other genotypes. Mean tuber number decreased by 55% under drought condition. Drought stress reduced marketable tuber number by 79% as compared to irrigated treatment. Drought stress reduced the marketable tuber yield from 70% to 87%. The clones CIP 392242.25 and LBr-40 had relatively lower yield loss, and less drought susceptibility index under drought indicating their tolerance to drought in field condition. Further experiment is recommended to study the physiological parameters of these genotypes under different water and soil conditions. 

Int J Appl Sci Biotechnol, Vol 3(3): 513-519

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Abstract
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Published
2015-09-25
How to Cite
Luitel, B., Khatri, B. B., Choudhary, D., Paudel, B. P., Jung-Sook, S., Hur, O.- S., Baek, H. J., Cheol, K. H., & Yul, R. K. (2015). Growth and Yield Characters of Potato Genotypes Grown in Drought and Irrigated Conditions of Nepal. International Journal of Applied Sciences and Biotechnology, 3(3), 513-519. https://doi.org/10.3126/ijasbt.v3i3.13347
Section
Research Articles