Ethiopian Journal of Biological Sciences最新文献_第5页

Phenetic study of Northeast and East Tropical African Commiphora species 东北和东部热带非洲金蝇属的表型研究

Ethiopian Journal of Biological Sciences Pub Date : 2007-01-26 DOI: 10.4314/EJBS.V4I1.39015

T. Soromessa

引用次数: 0

Use and management of ethnoveterinary medicinal plants by indigenous people of 'Boosat', Welenchita area Welenchita地区'Boosat'土著人使用和管理民族兽药植物

Ethiopian Journal of Biological Sciences Pub Date : 2007-01-26 DOI: 10.4314/EJBS.V3I2.39007

D. Hunde, Zemede Asfaw Z. Asfaw, E. Kelbessa

引用次数: 32

Responses of haricot bean ( Phaseolus vulgaris L.) to moisture availability and two temperature regimes 小白豆对水分有效性和两种温度的响应

Ethiopian Journal of Biological Sciences Pub Date : 2007-01-26 DOI: 10.4314/EJBS.V4I1.39014

W. Worku, A. Skjelvåg

引用次数: 0

Shigellosis in Ethiopia: Review of studies conducted since 1974 埃塞俄比亚的志贺氏菌病:1974年以来开展的研究综述

Ethiopian Journal of Biological Sciences Pub Date : 2007-01-26 DOI: 10.4314/EJBS.V3I2.39012

A. Geyid

引用次数: 11

Isozyme variation and nutritional analysis in field pea ( Pisum sativum L.) populations from Ethiopia 埃塞俄比亚大田豌豆(Pisum sativum L.)居群同工酶变异及营养分析

Ethiopian Journal of Biological Sciences Pub Date : 2007-01-26 DOI: 10.4314/EJBS.V3I2.39008

M. Degef, M. Shiferaw, S. Yibrah

引用次数: 1

Effect of plant population and harvesting time on growth and dry matter production of potato ( Solanum tuberosum L.) 种群和收获时间对马铃薯生长和干物质产量的影响

Ethiopian Journal of Biological Sciences Pub Date : 2007-01-26 DOI: 10.4314/EJBS.V4I1.39013

T. Hirpa

引用次数: 2

Quantitative comparison of gibberellins 19, 20, 29, 1 and 8 in photoperiodic ecotypes of Betula pendula Roth. 白桦光周期生态型赤霉素19、20、29、1和8的定量比较。

Ethiopian Journal of Biological Sciences Pub Date : 2007-01-26 DOI: 10.4314/EJBS.V3I2.39011

B. Abraha, J. Olsen, O. Juntttila

引用次数: 0

Diversity of Non-Timber Forest Products (NTFPs) and their source species in Menagesha Suba Forest 马纳格沙苏巴林非木材林产品及其源物种多样性

Ethiopian Journal of Biological Sciences Pub Date : 1900-01-01 DOI: 10.4314/EJBS.V9I1

Aramde Fetene, T. Bekele, M. Lemenih

{"title":"Diversity of Non-Timber Forest Products (NTFPs) and their source species in Menagesha Suba Forest","authors":"Aramde Fetene, T. Bekele, M. Lemenih","doi":"10.4314/EJBS.V9I1","DOIUrl":"https://doi.org/10.4314/EJBS.V9I1","url":null,"abstract":"The objective of this study was to investigate the diversity of Non-Timber Forest Products (NTFPs) and their source species in Menagesha Suba Forest. Data were collected and analyzed from 57 and 285 circular main plots of 400 m 2 and sub-plots of 1 m 2 areas, respectively. Information on the types of NTFPs extracted from the forest was obtained from a socio-economic survey that involved 123 randomly selected households from six Peasant Associations (PAs) nearby the forest. A total of 142 plant species belonging to 56 families were recorded in the forest, and 59 of them were identified to offer NTFPs of one type or another. Nine different types of NTFPs are extracted today from the forest and these include traditional medicine, household utensil, honey and bees-wax, fuelwood, farm implement, animal fodder, edible forest products, smoke wood, and flavoring and spices. The diversity, density and relative abundance of NTFPs’ bearing plants varied depending on the type of NTFP under consideration. In conclusion, Menagesha Suba Forest hosts rich diversity of plant species that offer diverse NTFPs. This richness with NTFPs resource can be used as an opportunity to device alternative strategy for the sustainable management of the forest by involving and allowing the local community to utilize the NTFPs resources rather than for destructive uses like timber harvest or conversion to other forms of land use. The incentive from NTFPs utilization could contribute to sustainable livelihoods of the local communities, which if realized, can win their interest for better conservation and development of the Forest. Keywords/phrases: Diversity, Density, Forest conservation, NTFPs, Menagesha Suba Ethiop. J. Biol. Sci ., 9(1): 11-34, 2010","PeriodicalId":187522,"journal":{"name":"Ethiopian Journal of Biological Sciences","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117190056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Timber seasoning and density characterstics of Cordia alliodora Cham. (Boraginaceae) grown in Ethiopia and its potential uses 山茱萸木材调味及密度特性研究。在埃塞俄比亚种植的一种植物及其潜在的用途

Ethiopian Journal of Biological Sciences Pub Date : 1900-01-01 DOI: 10.4314/EJBS.V10I2

G. Desalegn

{"title":"Timber seasoning and density characterstics of Cordia alliodora Cham. (Boraginaceae) grown in Ethiopia and its potential uses","authors":"G. Desalegn","doi":"10.4314/EJBS.V10I2","DOIUrl":"https://doi.org/10.4314/EJBS.V10I2","url":null,"abstract":"The knowledge on basic wood properties including timber seasoning, density and technologies of utilization would determine rational use and large-scale development of each timber species. A study was conducted on home-grown Cordia alliodora timber with the main objective of determining some important seasoning and density characterstics that indicate its timber quality to decide its proper utilization. The experiments were conducted using oven/microwave, air and kiln seasoning methods. Harvested logs were sawn while green and lumber stacked using stickers with three replications and seasoned from green (initial) moisture content (MC) to about 12% MC. The mean initial MC was 54.5% and density 550 kg m -3 . Results revealed that there were significant differences (P<0.01) between the seasoning methods, among shrinkage characteristics, and density values at different MC levels. Mean and range of final air seasoning MC of the species were 12.38% ± 2.7 and 11.93-12.75%, respectively while those of kiln seasoned batches were 14.24% ± 2.1 and 10.48-17.42%, respectively. Mean final MC of the seasoned timber for both seasoning methods was 13.31%. Cordia alliodora showed very rapid air (35 days) and kiln (2.2 days) seasoning rates. The mean density at 12% MC was 390 kg m -3 . Shrinkage values of the timber at oven dry (0%) MC compared at 12% MC increased by about 1.7 times. Slight seasoning defects such as cup, bow, twist, end split and checks were observed. In general, the species revealed good timber properties and qualities. Therefore, the species has to be grown and well managed, timber properly seasoned to less than 20% MC, with a method that can help increase quality, minimize seasoning defects and shrinkage characteristics. Consequently, timber has to be properly handled and rationally utilized at specified MC and density for intended construction and furniture purposes. Keywords/phrases: Moisture content, Rate and defects, Seasoning methods, Shrinkage characteristics, Uses Ethiop. J. Biol. Sci ., 10(2): 185-206, 2011","PeriodicalId":187522,"journal":{"name":"Ethiopian Journal of Biological Sciences","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114499332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Micropropagation of selected cassava ( Manihot esculenta Crantz) varieties through meristem culture 木薯(Manihot esculenta Crantz)选种分生组织培养的微繁研究

Ethiopian Journal of Biological Sciences Pub Date : 1900-01-01 DOI: 10.4314/EJBS.V9I2

Dawit Beyene, T. Feyissa, G. Bedada

{"title":"Micropropagation of selected cassava ( Manihot esculenta Crantz) varieties through meristem culture","authors":"Dawit Beyene, T. Feyissa, G. Bedada","doi":"10.4314/EJBS.V9I2","DOIUrl":"https://doi.org/10.4314/EJBS.V9I2","url":null,"abstract":"Cassava, ( Manihot esculenta Crantz) is a perennial woody herb which is cultivated in sub-Saharan Africa, Latin America and Asia for its edible starchy roots and its ability to withstand marginal environmental conditions. Due to high seed dormancy and sluggish germination rate, farmers normally practice propagation of cassava by stem cuttings which have led to accumulation of viral and bacterial diseases that reduce productivity and causes loss of superior genotypes. To develop a protocol for rapid in vitro micropropagation, two cassava varieties (‘Qulle’ and ‘Kello’) were selected. Solid MS medium supplemented with different hormonal combinations was used for shoot induction, shoot multiplication and rooting. Among different treatments used for shoot multiplication, 0.5 mg/l BAP in combination with 1 mg/l GA 3 and 0.01 mg/l NAA was found to be the best; with a mean number of 12.23 and 7.22 shoots per explant for cultivars ‘Qulle’ and ‘Kello’, respectively. Root induction potential of the two varieties increased by supplementing the medium with 1mg/l of IBA. Of those shoots which were acclimatized in the greenhouse, 89.1% of ‘Qulle’ and 75% of ‘Kello’ survived. The protocol could be used for the multiplication of cassava for large-scale production. Keywords/phrases: Manihot esculenta , Meristem, Micropropagation, Tissue culture Ethiop. J. Biol. Sci ., 9(2): 127-142, 2010","PeriodicalId":187522,"journal":{"name":"Ethiopian Journal of Biological Sciences","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126690633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4