2016•International Journal of Farm SciencesRequires access
Stability analysis of potato cultivars for Kharif cultivation in Koraput region of Odisha
Jyotshnarani Maharana, C. M. Panda, A. K. Dash, SATPATHY, PC, JAKHAR, PRAVEEN
Open publisher page 0 citations
Abstract
Stability analysis helps in understanding the adaptability of genotypes over different environmental conditions and identification of adaptable genotypes. The objective of the present study was to determine stable potato genotypes for off-season potato cultivation in Koraput region of southern Odisha. Sixteen varieties were evaluated for ten characters during Kharif season of 2014 and 2015 for stability parameters. Kufri Pukhraj, Kufri Lalit and Kufri Jyoti with mean tuber weight of 28.94, 28.96 and 29.67 g respectively showed stability in average tuber weight over all the locations. The mean values of tubers/plant indicated that Kufri Ashok variety was highest (7.81) while Kufri Arun was lowest yielding genotype (4.93). Highest mean value for tuber yield was recorded for variety Kufri Lalima (133.2) while Kufri Arun (84.2) had least mean value. The set of genotypes viz Kufri Lalima, Kufri Pukhraj, Kufri Lalit, Kufri Jyoti, Kufri Ashok and Kufri Chipsona 3 were found to be widely adapted to all the locations. For marketable yield Kufri Pukhraj and Kufri Jyoti had highest mean value of 107.4 and 107.3 respectively. Of the 16 varieties evaluated for 10 characters, Kufri Lalit, Kufri Lalima, Kufri Pukhraj and Kufri Jyoti were found to be stable for 8, 7, 8 and 7 characters respectively. These varieties can be recommended to farmers for cultivation for off-season (Kharif) potato cultivation in Koraput region. Kufri Chipsona 1 and Kufri Surya were adapted to favourable environment only due to their specific characteristics.