Abstract:Wheat (Triticum aestivumL.) is one of the most important and strategic staple food crops, globally. Therefore, this study was conducted to identify and evaluate adaptable and high yielding improved wheat varieties for lowland areas of Tigray region northern Ethiopia. A total of 7 released wheat varieties including local variety were tested in a Randomized Complete Block Design (RCBD) at Mehoni Agricultural Research Center during 2016 to 2017 under irrigation. Analysis of variance was performed to contrast the differences within the varieties based on yield and other yield-related traits.  The year x variety interaction was highly significant (P<0.01) for days to heading, days to maturity and grain yield indicating a different performance of bread wheat varieties over the two years; suggesting the importance of the assessment of varieties under different years in order to identify better performing varieties for a particular location. The analysis also revealed highly significant difference (P<0.01) among the different varieties for days to heading, plant height and grain yield. Based on the combined result variety Lucy (6.41 t ha^-1) and Gambo (5.79 t ha^-1) showed better performance for grain yield and recommended for the study area and similar agro-ecologies of Southern Tigray, Ethiopia.
Keywords:Bread wheat, Varieties, Days to heading, Days to maturity, Grain yield.

Title:Evaluation of Lowland Released Bread Wheat (Triticum aestivum L.) Varieties under Irrigation in Raya Valley Southern Tigray, Ethiopia
Author:Girma Degife, Esuyawkal Demis
ISSN 2394-966X
International Journal of Novel Research in Life Sciences                                                    
Novelty Journals

Abstract:Quality seed is vital input for increasing agricultural productivity and for next generation seed quality. Assessing different seed sources on physical, physiological and seed health tests are important for rice seed quality production. Therefore, this experiment was conducted to assess the quality of rice seed from different seed sources. An experiment was conducted both in field and laboratory conditions. A field experiment was conducted in Fogera National Rice Research and Training Center during 2017 and 2018 main cropping seasons using a randomized complete block design with three replications and laboratory experiment was conducted at Holleta Agricultural Research Center and Fogera National Rice Research and Training Center by taking representative seed samples.  Data was collected on various characters and subjected to analysis of variance. The analysis of variance showed that number of unfertile tillers, unfilled spikelet per panicle, number of off type, physical purity and percentage of pathogen infected seeds were significantly different on seed sources. From the results of this studyoff type and seed born fungal microorganisms are major problems for deteriorating seed quality. Farmers seed sources highly deteriorated and infested by fungal microorganism than other seed sources. Therefore, farmers should be carry out adequate rogue out and used healthy seed on their rice production including other seed producing institutions to increase seed quality and minimize crop failure as a result of poor pre and post harvest management and famers should be able to source their rice seeds from reliable seed handlers.
Keywords:  Oryza sativa, Rice, Seed quality, Seed sources, Seed health.  

Title:Assessment of Rice(Oryza sativa L.)Seed Quality from Different Seed Sources in Fogera, North Western Ethiopia
Author:Esuyawkal Demis, Yilikal Melak, Assaye Berie, Kifle Yohanes
ISSN 2394-966X
International Journal of Novel Research in Life Sciences                                                    
Novelty Journals