Performance of triticale varieties for the marginal highlands of Wag-Lasta, Ethiopia

A field experiment was conducted during 2014 and 2015 using seven released triticale varieties in Wag-Lasta marginal high lands. Triticale (Triticosecale) is a hybrid of wheat (Triticum) and rye (Secale). The objective of the trial was to select adaptable and high yielding triticale variety for Wag-Lasta marginal high lands. Randomized complete block design with three replications and Plot size of 2.5 m length, 1.2 m width, 0.2 m row spaces were used. Phonological, agronomic and grain yield Data were taken. The combined analysis of variance showed a significant difference among the test varieties, location, and variety by location (GEI) interaction for most of the traits. Mean squares of Location was highly significantly (P < 0.01) different for all traits considered except spike length. Varieties were also highly significantly (P < 0.01) different from each other except biomass. Mean squares for variety by location interaction effects were highly significant (p < 0.01) for days to heading, days to maturity and significant (p < 0.05) for spike length and biomass; indicated the differential response of the varieties to test location for these traits. However, grain yield was not significantly affected by interaction effect that varieties were performed nearly similar in these test locations. Based on the data analysis and field evaluation variety Logawshibo followed by Dilfakare gave the highest grain yields of 30.32 qt/ha and 27.43 qt/ha, respectively. Thus, these varieties are recommended for Wag-Lasta marginal highlands and similar environment of the region. Moreover, these varieties should be demonstrated and popularized for the users