PJB-2022-562
Assessing yield and genotype x environment interaction in peanut (Arachis hypogaea) for developing climate-ready cultivars
Muhammad Jahanzaib, Shiguftah Khalid, Haris Khurshid, Ihsan Ullah Khan, Nazakat Nawaz, Muhammad Arshad, Muhammad Asim, Muhammad Zeshan and Rafiq Ahmad
Abstract
Peanut or groundnut (Arachis hypogaea) is one of the major cash crops in the arid parts of Pakistan. Moreover, the country’s changing climatic conditions are hampering its production due to perpetual droughts, rising temperatures and unpredictable precipitation. Therefore, it is imperative to develop climate-adaptive stable groundnut cultivars which can perform across different agro-ecologies of the country. In the present experiment, the yield stability of seven advanced groundnut lines across six locations was examined during two Kharif seasons of the year 2018-19. The yield data were subjected to analysis of variance, stability indices and GGE biplot to determine the pattern of variation across locations. The ground nut yield across six experimental sites ranged from 1180 to 4065 with an average of 2433 kg/ha. The highest groundnut yield was recorded (4522 kg/ha) in genotype BARI--2011 at Umerkot. Whereas the genotype ICG-11855 had the minimum yield average across different locations. Location-wise, the highest average was recorded in Umerkot followed by Attock and NARC Islamabad. Genotypes exhibited significant variation for yield and stability attributes which demonstrated the potential of selection to identify zone-specific cultivars. The analysis of variance showed that most of the variation was contributed by the environment. Strong genotype x environment interaction was observed as per GGE biplot analysis. Conclusively, the analyses revealed 13CG003, 11AK011 and 10AK003 are potential candidates for approval as they exhibited stable and better yield across the locations. It is recommended that further evaluation of breeding materials should be carried out in all the agro-ecological zones of the country to determine the extent of GxE interaction as well as identify stable genotypes for the country
To Cite this article:
Jahanzaib, M., S. Khalid, H. Khurshid, I.U. Khan, N. Nawaz, M. Arshad, M. Asim, M. Zeshan and R. Ahmad. 2025. Assessing yield and genotype x environment interaction in peanut (Arachis hypogaea) for developing climate-ready cultivars. Pak. J. Bot., 57(3): DOI: http://dx.doi.org/10.30848/PJB2025-3(7)
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