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Articles by Wosene Gebreselassie
Total Records ( 3 ) for Wosene Gebreselassie
  Daba Mengesha , Derbew Belew , Wosene Gebreselassie and Waktole Sori
  Among the major root and tuber crops, anchote is a potential crop produced in West Wollega zone of Ethiopia. It serves as a food, cultural, social and economical crop for the farming communities. Due to the lower attention given to the research and development of anchote, there is no variety so far developed and released. Ten promising anchote accessions were tested at Jimma and Ebantu from June 2010 until October 2010 to determine agronomic performance of the accessions. The experimental design was a randomized complete block design with three replications. The results indicated that yield and yield components were significantly (p<0.05) higher for the majority of the accessions under Ebantu than Jimma condition. The highest total biomass, 19.13 kg per 4 m2 plot, was obtained at Ebantu from accession 223098 while the maximum total biomass at Jimma was only 11.69 kg per 4 m2 plot that was obtained from accession 223087. Almost all accessions took longer average time (128 days) to reach 90% maturity under Ebantu condition than Jimma which took 109 days on average. The maximum storage root yield (76.45 t ha-1) was observed for an accession No. 223098, under Ebantu condition, while, the lowest yield was obtained from accession No. 240407 (51.54 t ha-1) under Jimma condition. The highest mean dry matter (30%) was obtained under Ebantu condition for almost all accessions. On the other hand, the lowest mean dry matter (20%) was obtained under Jimma condition. From this study the six accessions 223109, 223087, 223098, 223096, 90802 and 229702 produced better storage root yield, high dry matter content, high biological yield across the two environments indicating a good performance and adaptation. Therefore, these accessions are suggested to farmers in areas of Jimma, Ebantu and with other areas of similar agro-ecological zones.
  Ali Mohammed , Wosene Gebreselassie and Tigist Nardos
  Coffee (Coffea arabica L.) is primarily propagated by seedlings and produced directly from seeds. Effective Microorganisms (EM) has been used for the purpose of improving the germination of different crops. This study was initiated to assess the effect of EM on emergence and subsequent growth of coffee seedlings in different potting mix as a media for growth. The study was conducted in Jimma, Ethiopia from November 2011 until June 2012. The experimental units were laid out in a 5x3 factorial arrangement with Randomized Complete Block Design with three replications. The EM seed treatment had five levels of soaking h (3.5, 4.5, 5.5, 6.5 h and soaking in pure water for 72 h) while the potting mixes had three proportions of Forest Soil (FS) and EM Compost (EMC): (100% FS, 75% FS: 25% EMC and 50% FS: 50% EMC). The highest (76.47%) emergence was recorded from forest soil and EM compost mixture of 75:25 and seeds soaked in pure water for 72 h. Forest soil combined with a 4.5 h soaking of coffee seeds in EM solution resulted in the largest seedling height, number of primary branches and total dry matter. According to this study, EM solution may not be preferred than soaking in water as far as hastening of emergency is concerned. However, the use of forest soil as a pot media and soaking coffee seeds in EM solution for 4.5 h results in a relatively vigor coffee seedlings for transplanting.
  Waktole Sori and Wosene Gebreselassie
  Background and Objective: Mulberry, Morus spp., a temperate plant well adapted to tropical and subtropical climatic conditions gives continuous yield, the leaf, which is used as a sole nutrient source for mulberry silkworm, Bombyx mori L. The plant is commonly grown in Ethiopia as a fence. The experiment was initiated to evaluate different mulberry genotypes for agronomic and quality attributes as a feed for silk worm. Methodology: Eleven locally available genotypes were collected and evaluated for their growth, leaf yield and attributes under Jimma conditions for 2 years using a randomized complete block design, each replicated thrice. Results: There were statistical differences in growth, leaf yield and quality attributes among the genotypes. Generally, Kumbi and M4 genotypes were superior in their growth, yield and quality attributes. Better establishment, maximum shoot length, number of leaves and branches, leaf area, internodes length, leaf fresh and dry weight, leaf yield per hectare and per plant, total chlorophyll, moisture percentage, total soluble protein, total soluble sugar and NPK contents of the leaf were obtained from Kumbi collection followed by M4 genotype in all cases. Minimum growth, leaf yield and leaf quality attributes were recovered from genotype S13 followed by Saja. Conclusion: Kumbi and M4 genotypes are recommended for mulberry garden establishment as future planting material sources and further multiplied for silkworm rearing purpose in Jimma area. However, the need for further studies was suggested to investigate the effects of the genotypes on the quantity and quality of mulberry silkworm silk cocoon production.
 
 
 
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