Adaptation Study of Improved Linseed (Linum Usitatisimum L) Varieties at Kellem Wollega Zone, Haro Sabu, Ethiopia

Biru Alemu


The present study was envisaged to assess the adaptability of ten improved linseed varieties (Belay-96, Tole, Berene, Jeldu, Dibano, Kulumsa-1, CI-1652, CI-1525, Jitu and Kasa-2 and a local check at Haro Sabu Agricultural Research Center sub sites, to see their adaptability potential under western Oromia. These varieties were sown in RCBD with three replications during 2013/14 at Hawa Galan and Tabor sub sites. Combined analyses of data from the two experimental sites(Hawa Galan and Tabor )revealed very highly significant varietal differences (P < 0.05) in grain yield, and days to 95% maturity, and significant for plant height and capsules (balls) per plant. However, no significant varietal differences were observed in main branch per plant .The location effect was very highly significant (P < 0.05) for grain yield, days to 95% maturity, and plant height and significant for main branch per plant. There were no significant differences between the two locations with respect capsules (balls) per plant. The replication across location effect was highly significant (P < 0.05) for grain yield and not significant for all other characters studied.

A variety x Location interaction effects was highly significant (P < 0.05) for grain yield and days to 95% maturity. However, there were no significant difference for variety*location interaction effects for plant height, main branch per plant and capsules (balls) per plant. Plant height ranged from 89.97 cm for Jitu to 79.4 cm for Local check. Days to 95% maturity range from 136.3 days for Jeldu to 121.67 for Dibano. Mean capsules (balls) per plant differ from 25.0 (Tole) to 13.9(CI-1652). Mean Number of primary branches per stand ranged from 5.23 (local check) to 3.1(jitu). Kulumsa-1 variety produced the highest seed yield (10.85 Qt ha-1) followed by Kasa-2, Dibano and Jitu. On the other hand, CI-1652 (5.78 Qt ha-1) showed the lowest.

Keywords: Linum usitatisimum L; varieties; adaptability

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