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Maharjan, Bidhya
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Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Environmental Science Social Sciences Veterinary

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Grain Yield Stability of Rice Genotypes Shrestha, Jiban; Kushwaha, Ujjawal Kumar Singh; Maharjan, Bidhya; Kandel, Manoj; Gurung, Suk Bahadur; Poudel, Amrit Prasad; Karna, Manoj Kumar Lal; Acharya, Ramesh
Indonesian Journal of Agricultural Research Vol. 3 No. 2 (2020): InJAR, Vol. 3, No. 2, July 2020
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v3i2.3868

Abstract

Stability analysis identifies the adaptation of a crop genotype in different environments. The objective of this study was to evaluate promising rice genotypes for yield stability at different mid-hill environments of Nepal. The multilocation trials were conducted in 2017 and 2018 at three locations viz Lumle, Kaski; Pakhribas, Dhankuta; and Kabre, Dolakha. Seven rice genotypes namely NR11115-B-B-31-3, NR11139-B-B-B-13-3, NR10676-B-5-3, NR11011-B-B-B-B-29, NR11105-B-B-27, 08FAN10, and Khumal-4 were evaluated in each location. The experiment was laid out in a randomized complete block design with three replications. The rice genotype NR10676-B-5-3 produced the highest grain yield (6.72 t/ha) among all genotypes. The growing environmental factors (climate and soil conditions) affect the grain yield performance of rice genotypes. The variation in climatic factors greatly contributed to the variation in grain yield. Polygon view of genotypic main effect plus genotype-by-environment interaction (GGE) biplot showed that the genotypes NR10676-B-53 and NR11105-B-B-27 were suitable for Lumle; NR11115-B-B-31-3 and NR11139-B-B-B-13-3 for Pakhribas; and 08FAN10 and NR11011-B-B-B-B-29 for Kabre. The GGE biplot showed that genotype NR10676-B-5-3 was stable hence it was near to the point of ideal genotype. This study suggests that NR10676-B-5-3 can be grown for higher grain yield production in mid-hills of Nepal.
Co-Authors Acharya, Ramesh Gurung, Suk Bahadur Kandel, Manoj Karna, Manoj Kumar Lal Kushwaha, Ujjawal Kumar Singh Poudel, Amrit Prasad Shrestha, Jiban