Adaptation Study Of Improved groundnut (Arachis hypogaea L ) Varieties At Kellem Wollega Zone, Haro Sabu, Ethiopia

Abstract

The present study was envisaged to assess the adaptability of twelve improved groundnut (Sadi, manipinter, fayo, Sartu, Nc-4x, wr961, wr962, Harar, Roba, Fetene, Oldhale, and Shulamit) varieties. These varieties were sown in RCBD with three replications during 2012/13 at Haro Sabu Research Center on station and kombo Sub-Site, Ethiopia. Combined analyses of data from the two experimental sites(Haro Sabu Research Center on station and kombo Sub-Site location)revealed very highly significant varietal differences (P < 0.05) in grain yield, and days to 50% flower, days to 95% maturity and highly significant for stand count and significant for plant height and hundred seed weight. However, no significant varietal differences observed in branch per plant and seed per pod. The location effect was very highly significant (P < 0.05) for days to 50% flower, days to 95% maturity, and highly significant (P < 0.05) for grain yield and plant height. There were no significant differences between the two locations with respect branch per plant, seed per pod ,stand count and hundred seed weight. The replication across location effect was  significant (P < 0.05) for grain yield and not significant for all other characters studied. Sadi and Fetene were early to flower (27 days) and early to mature. Manipinter differ from the rest of the tested varieties by its weight (80.7gram per 100 seed) and this reveals this variety to be extra-large seeded groundnut type. In contrasts, sartu differ from the rest of the tested varieties by its small weight (35.9 gram per 100 seed) and this reveals this variety to be small seeded groundnut type. Manipinter was the best yielder (16.9) under respective agro ecology followed by Sartu (12.2),Sadi(11.8) and wr961(11.05). Fetene and oldhale were poor in performance under respective agro ecology.

Keywords: Arachis hypogaea L; varieties; adaptability