Journal of Innovative Agriculture, Volume 9, Issue 4 : 22-31. Doi : 10.37446/jinagri/rsa/9.4.2022.22-31
Research Article

OPEN ACCESS | Published on : 31-Dec-2022

AMMI and GGE biplot analysis of yield of different wheat varieties under irrigated and moisture-restricted environments

  • Bishnu Bhusal
  • Department of Plant Breeding and Genetics, Institute of Agriculture and Animal Science, Tribhuvan University, Kathmandu, Nepal.
  • Kushal Bhattarai
  • Department of Plant Breeding and Genetics, Institute of Agriculture and Animal Science, Tribhuvan University, Kathmandu, Nepal.
  • Mukti Ram Poudel
  • Department of Plant Breeding and Genetics, Institute of Agriculture and Animal Science, Tribhuvan University, Kathmandu, Nepal.
  • Nav Raj Adhikari
  • Department of Plant Breeding and Genetics, Institute of Agriculture and Animal Science, Tribhuvan University, Kathmandu, Nepal.
  • Deepak Pandey
  • National Wheat Research Program (NWRP), Nepal Agriculture Research Council (NARC), Bhairahawa, Rupandehi, Nepal.


Wheat is an important winter cereal of Nepal but drought limits its production as 34.44% of wheat producing area is under non-irrigated environment. The identification of high yielding potential varieties with stable performance under drought environment may be the way forward to cope with limited productivity. So, in this study, the effect of genotype by environment interaction on yield of fourteen wheat varieties and two promising lines under two environmental conditions, irrigated and moisture-restricted environments were inspected. The research was carried out in a randomized complete block design with three replication in each environment. The result showed significant difference between grain yield in irrigated and moisture restricted environments. In irrigated environment, highest yield was obtained in BL 4341 and lowest yield was obtained in Gautam while in moisture restricted environment, highest yield was obtained in NL 1327 and lowest yield was obtained in Nepal 297. In moisture-restricted environment, grain yield was reduced by 43.28% in comparison with irrigated environment. The AMMI analysis revealed that genotype, environment, genotype-environment interaction was highly significant for grain yield, and these explained 15.78%, 71.55%, 12.66% of the effect on yield, respectively. The which-won-where polygon view of GGE biplot revealed that BL 4341 and NL 1327 as vertex varieties and winning in irrigated and non-irrigated environment respectively. Furthermore, the mean-versus-stability pattern identified Bhrikuti as high yielding and stable variety while NL 1368 and Banganga were stable but produced below average yield. Similarly, from the ranking genotype pattern, we identified varieties Bhrikuti, BL 4341 and NL 971 to be close to the ideal variety respectively.


adaptability, AMMI, environment, genotype, stability, stress, wheat


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