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Articles by Alemayehu Assefa Gebeyaneh
Total Records ( 1 ) for Alemayehu Assefa Gebeyaneh
  Beakal Tadesse Girma , Hussein Mohammed Ali and Alemayehu Assefa Gebeyaneh
  Background and Objective: Rice is one of the important cereal crops satisfying the carbohydrate need of one third of the world population. Rice is recently introduced crop in Ethiopia but its production is expanding very fast. However, its production is tackled by many factors in which salinity is one of the problem. The objective of this study was to identify high yielding, salt tolerant rice genotypes. Methodology: The experiment was evaluated 13 genotypes along with two checks (one tolerant and one susceptible) at four salinity levels in a factorial combinations Completely Randomized Design (CRD) with three replications in a lath house pot experiment at Werer Agricultural Research Center, Eastern part of Ethiopia from August, 2014 to February, 2015. Results: The ANOVA for these two experiments revealed very highly significant difference between the genotypes in all studied traits witnessing the genetic variability which can be used in breeding rice for salinity tolerance. Salinity levels affected yield and its components during the final growth stage. The genotype by salinity interaction was also very highly significant for all traits showing the inconsistency of the performance of genotypes across the salinity levels that also caused change in rank genotypes. In the experiment salinity caused decreased grain yield by 0.16 g for every dS m–1 increase of salinity between 0 and 12 dS m–1. Conclusion: Genotypes, IR 70023 and IR 71810 of rice (Oryza sativa L.) were found tolerant. A breeding program should be developed for the improvement of salt tolerant genotypes.
 
 
 
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