Journal of
Agricultural Biotechnology and Sustainable Development

  • Abbreviation: J. Agric. Biotech. Sustain. Dev.
  • Language: English
  • ISSN: 2141-2340
  • DOI: 10.5897/JABSD
  • Start Year: 2009

JABSD Articles

September 2018

Farmers’ knowledge and perceptions of leaf spot disease of groundnut and its management in Northern Region of Ghana

Groundnut (Arachis hypogea L.) is an important food source as well as cash crop for the people of Northern Ghana. The crop yield is low partly due to biological constraints which include diseases like leaf spot. A survey was conducted among 200 farmers in four districts of the Northern Region of Ghana, from June to August, 2014 using a structured questionnaire. The objectives of this study were to assess farmers’...

Author(s): Moses Neindow, Elias Nortaa Kunedeb Sowely and Abdul-Halim Abubakari  

August 2018

Popularization of Koekoek poultry breed for enhancing livelihood of poor households: A case of Southern Tigray, Ethiopia

Demonstration of Koekoek breed was conducted at Raya-Azebo and Enda-Mehoni Woredas with 10 poor households with the objective of increasing the productivity of poultry thereby improving livelihood of the resource poor farmers in Ethiopia. Koekoek breed had significantly (P<0.05) superior on number of eggs laid per clutch (26 egg/clutch) as compared to local breed (15 egg/clutch). Beside this, the Koekoek breed is...

Author(s): Temesgen Tesfay, Hagos Kidane, Tesfay Atsebha, Teshale Teklu, Solomon Wayu, Adehanom Baraki, Yekalo Teklay, Zebrhe Teklay, Haileselassie Amare and Zelealem Tesfay  

July 2018

Limitations and strategies to enhance biological nitrogen fixation in sub-humid tropics of Western Ethiopia

Currently, inorganic nitrogen fertilizer becomes a serious threat to the environment and human health. Thus, finding of alternate source of nitrogen is a viable option in assuring of sustainable agricultural system. Biological nitrogen fixation is a critical and key process in sustainable agricultural systems in tropical soils, which are frequently deficient in N and susceptible to leaching of plant nutrients. This...

Author(s): Alemayehu Dabessa, Zerihun Abebe and Solomon Bekele

July 2018

Genetic analysis for grain yield and yield related traits in maize (Zea mays L.) inbred lines in line × tester mating design

Maize is one of the most important cereal crop widely grown in the world. Maize crosses along with similar maturing checks were evaluated at Hawassa in 2015-2016 cropping season to understand the nature of gene action governing yield and its attributes through line × tester analysis and to study genetic contribution of line, tester and the interaction of line × tester to total variation. The experiment was...

Author(s): Natol Bakala, Berhanu Abate and Mandefero Nigusie

July 2018

Adaptability evaluation of common bean (Phaseolus vulgaris L.) genotypes at Western Ethiopia

Fifteen common bean genotypes were tested at four locations with two management regimes of lime treated and lime untreated acidic soils. The experiment was laid out in split plot design with three replications during 2016/17 cropping season. The combined analysis of variance over environments showed significant differences among environments, genotypes, genotype x environment interaction (GEI), management, genotype by...

Author(s): Habtamu Alemu Keba  

July 2018

Micro-propagation of Colocasia esculenta (cv. Bolosso I) from corm and sprout tip explants

Taro (Colocasia esculenta L.) is a perennial, aquatic and semi-aquatic species, member of the family Araceae grown for its edible tuberous root. The application of conventional propagation techniques for taro could not produce the high demand and quality planting materials due to its low productive capacity and diseases transmission. Therefore, this study was carried out to develop micro-propagation protocol for...

Author(s): Adelegn Bogale  

July 2018

Combining ability and gene action of hot pepper (Capsicum annuum L.) genotypes in Southern Ethiopia

This work identifies the combining ability of 10 hot pepper (Capsicum annuum L.) parents and 45F1 hybrids obtained from 10 x 10 half diallel. The work aims to identify the parents with the best general combining ability (gca) and crosses with high specific combining ability (sca) for yield, quality and nature of gene action involved. The study was conducted during 2015-2016 at six environments in Southern Ethiopia using...

Author(s): Abrham Shumbulo, Mandefiro Nigussie and Sentayehu Alamerew  

June 2018

Growth and yield of common bean (Phaseolus vulgaris L.) cultivars as influenced by rates of phosphorus at Jimma, Southwest Ethiopia

Common bean (Phaseolus vulgaris L.) is an important food and cash crop in southwest Ethiopia with multiple uses. Productivity of the crop is, however, low at national as well as regional levels, mainly due to low soil fertility. Phosphorus (P) deficiency is particularly important in acid soils of southwest Ethiopia affecting growth and yield of seed legumes in general and that of common beans in particular. Therefore, a...

Author(s): Amanuel Alemu, Amisalu Nebiyu, and Merkeb Getachew  

June 2018

Yield and agronomic performances of desi type chickpea genotypes against acidic soil of Western Ethiopia

Currently, 40% of arable land in Ethiopia is affected by acidity and particularly the soil acidity problem that occurs in central and western zones of Oromia deserves immediate intervention for crop production. The objective of the present study was to examine responses of Desi type chickpea varieties against acidic soil of western Ethiopia. Pooled analysis of variance (ANOVA) indicated significant difference among...

Author(s): Biru Alemu and Dagnachew Lule  

May 2018

Implementation of stewardship in African agricultural public research and development institutions

The commercial use of biotech crops developed using genetic modification (GM) technologies is very limited in sub-Saharan African agriculture. Efforts are on-going to address this.  The need to implement best practices in stewardship to support the responsible and safe management of agricultural biotechnology and maintain the highest research standards on product integrity have received less attention. A pioneering...

Author(s): Walter S. Alhassan, Vivienne M. Anthony and Patrick Rudelsheim  

April 2018

Do fertilizers and cropland influence the agricultural production value in the same way? Evidence using the autoregressive distributed lags approach of cointegration

Cropland and fertilizers are two prominent and non-spared factors of agricultural sustainable production. This study mainly aimed to examine the response of crop production value to cropland used and chemical fertilizers supplied by using the Autoregressive Distributed Lags approach of cointegration over the period 1980 to 2016. The bound test and the error correction term showed that the amount of nitrogen (N),...

Author(s): Brice Hoyeton Ainan and Luan Jingdong  

April 2018

Challenges and opportunities of honey production in north- east dry land areas of Amhara National Regional State, Ethiopia

The study aims to evaluate major challenges, opportunities and future prospects of bee keeping and honey production in three districts of Waghimra Zone (Abergell, Sekota and Gazgibala). To collect data, 332 respondents were selected using systematic random sampling from the three districts. Data were collected using semi-structured questionnaire, observation, keyinformant interveiw and focus group discussion. Data were...

Author(s): Aregawi Kalayu, Zewdu Wondifraw and Woreknesh Tiruneh  

April 2018

The bio-efficacy of Calpurnia aurea against Sitophilus zeamais (Motschulsky) (Coleoptera; Curculionidae) of stored maize under laboratory condition in Ethiopia

N-hexane (non-polar), chloroform (partial polar), distilled water, methanol, acetone and ethanol (polar) extracts (10 g/100, 20 g/100 and 20 g/100 ml extraction levels) and leaf powder of Calpurnia aurea were tested as protectant against maize weevil, Sitophilus zeamais on filter paper and in maize grains under laboratory condition. The extracts and powder were applied at rate of 2 and 3 ml on filter paper and at a rate...

Author(s): Berhanu Hiruy and Emana Getu

March 2018

Hydroponic screening and characterization of aluminium tolerance on finger millet (Eleusine coracana (L.) Gaertn) accessions

Biotic and abiotic stress combined with the use of less productive local cultivars cause low production of finger millet in Ethiopia. This research was conducted to investigate acidity tolerance of finger millet accessions. Preliminary screening was done on 288 accessions and six improved national cultivars of finger millet. Twenty randomly selected and surface-sterilized seeds of each germplasm were wrapped and...

Author(s): Haftom Brhane, Edossa Fikru, Teklehaimanot Haileselassie and Kassahun Tesfaye  

March 2018

Anthropogenic and climatic factors affecting honey production: The case of selected villages in Manyoni District, Tanzania

This paper is based on a study that was conducted in three villages of Njirii, Angondi and Sanjaranda of Manyoni District in central Tanzania. The objectives of the study were: (i) to determine the prevailing status of beekeeping environment and (ii) to assess the anthropogenic and climate factors that reduce honey production. Primary data were obtained using questionnaires and interviews. About 107 participants were...

Author(s): Godfrey Nyunza  

February 2018

The effect of inter cross-inoculation host group rhizobia on the growth and nitrogen fixation of Faba Bean (Vicia faba L.) varieties in North Showa, Amhara Regional State, Ethiopia

Faba bean (Vicia faba L.) is one of the most widely cultivated leguminous crops grown in the Highlands of Ethiopian. This study was aimed at evaluating the effect of Rhizobium leguminosarum bv.viciae isolates from other cross-inoculation hosts from field pea, grass pea, and lentil on faba bean varieties. Thus, 12 isolates were selected from faba bean, field pea, grass pea and lentil using host trap method on soil...

Author(s): Amha Gebremariam and Fassil Assefa

February 2018

Tomato leafminer [(Tuta absoluta Meyrick) (Lepidoptera: Gelechiidae)] and its current ecofriendly management strategies: A review

Continue climatic changes in the world enhance the emergence of invasive agricultural insect pests. Tuta absoluta is one of the most devastating tomato leafminer and it spreads extensively in almost all parts of the world. It is a serious threat for tomato production and it results in highest damage. T. absoluta has fast growth rate with developmental stages of egg, larvae, pupa, and adult and it adapts to different...

Author(s): Birhan Aynalem

January 2018

Enzyme-assisted traditional extraction of shea butter using different levels of pre-treated shea kernels

Three different pre-treated shea nut substrates: raw kernels, roasted kernels and shea nut paste from roasted kernels were subjected to treatment with three different industrial enzymes: lipase, pectinase and cellulase, separately and in combination for shea butter extraction. Enzyme mixtures was optimized at pH of 6; 3% enzyme-substrate concentration, 2 h hydrolysis time at a temperature of 60ºC. The results...

Author(s): Beauty Didia,  Zakpaa Hilary D., Mills-Robertson Felix C. and Abdul-Mumeen Iddrisu

December 2017

Evaluation of multivoltine x bivoltine hybrids of mulberry silkworm, Bombyx mori L. tolerant to disease and high yield at various generation for end users

This study was conducted in the Sericulture Research Laboratory of Melkassa Research Center. Four bivoltine and one polyvoltine silkworm were involved in the crossing experiment and laid out in complete randomized design with four replications. Data was collected on fecundity, pupation rate (%), number of diseased larvae, survival rate (%), cocoon weight (g), cocoon shell weight (g), cocoon shell ratio (%) and filament...

Author(s): Ahmed Ibrahim, Kedir Shifa, Metasebia Terefe and Abiy Tilahun

November 2017

Effect of basic fertilizer doses and liquid organic fertilizer concentration on soybean yield

The research aimed at examining the impact of fertilizer doses and concentration of liquid organic fertilizers (LOF) treatment on soybean yield. The hypotheses of this study was that LOF effectively influenced soybean yield. The research was conducted in factorial scheme with two factors randomized. Two different treatments were applied (TA and TB). TA is the treatment with basic fertilizer (urea, triple super phosphate...

Author(s): Jajuk Herawati, Indarwati, and Ernawati Munadi

October 2017

Improvement of tree growth in salt-affected soils under greenhouse conditions using a combination of peanut shells and microbial inoculation

This study aimed at selecting an effective microbial inoculum to enhance the performance of Senegalia senegal, Vachellia seyal and Prosopis juliflora and assessing the combination effect of microbial inoculation and peanut shells amendment on their growth under salinity in greenhouse conditions. In the first experiment, seedlings were individually cultivated in plastic bags containing non-sterile sandy soil. Seedlings...

Author(s): Dioumacor Fall,, Niokhor Bakhoum, Fatoumata Fall, Fatou Diouf, Mathieu Ndigue Faye, Cheikh Ndiaye, Valérie Hocher and Diégane Diouf,

September 2017

Analysis of micronutrients variations among sweet potato (Ipomoea batatas [L.] Lam) genotypes in Malawi

Sweet potato (Ipomoea batatas [L.] Lam) is an important root crop in Malawi and Sub-Saharan Africa where micronutrient deficiency is an eminent health problem. Using 15 sweet potato genotypes grown in a randomized complete block design at Bvumbwe Research Station, a study was undertaken to determine the extent of variability of selected micronutrients in the genotypes as influenced by storage root age and peeling....

Author(s): Felistus Chipungu, Wisdom Changadeya, Aggrey Ambali, John Saka, Nzola Mahungu and Jonathan Mkumbira

March 2017

Aging effect of two decade old technologies of bean stem maggot (Ophiomyia spp.) management options in Ethiopia: Baseline information generation for future research direction

Haricot beans are the most important food and cash crop for most of the Ethiopian farmers. However, bean stem maggot (BSM) (Ophiomyia species) is limiting the production of the crop particularly in dry areas. Three species are involved in the infestation: Ophiomyia phaseoli, Ophiomyia spencerlla and Ophiomyia centrosematis. Two decades ago, two management options of BSM were developed and used for the last twenty years....

Author(s): Mulatwa Wondimu, Emana Getu, Sisay Kidanu and Amare Fufa

February 2017

Comparative studies on the partial purification and characterization of rhodanese from seed and mesocarp of snake tomatoes (Trichosanthes cucumerina Linn.)

Rhodanese enzyme was partially purified and characterized from seed and mesocarp of snake tomato (Trichosanthes cucumerina) using 80% ammonium sulphate precipitation. The enzyme isolated from T. cucumerina mesocarp had a specific activity of 8.8 RU/mg with a percentage yield of 87.8%, while that from T. cucumerina seed had a specific activity of 19.7 RU/mg with a percentage yield of 14.6%. The Km of rhodanese from T....

Author(s): R. E. Okonji, B. S. Fagbohunka, L. O. Ehigie and Z. A. Ayinla

January 2017

Entomopathogenic fungi Metarhizium anisopliae and Beauveria bassiana as potential biological control agents of Coelaemenodera elaeidis of the oil palm (Elaeis guineensis Jacq.)

The potential of two entomopathogenic fungi Metarhizium anisopliae.and Beauveria bassiana for the control of Coelaemenodera elaeidis were evaluated. The objective of this study was to control C. elaeidis using entomopathogenic fungi as biocontrol agents. The pathogenicity of M. anisopliae and B. bassiana isolates were tested using direct contamination bioassay set up of 2.5 g conidia (2.5 g of Metarhizium 2.5 x 1010 or...

Author(s): Eziashi E.I., Airede C.E., Aisagbonhi C., Chidi N.I. and Ogbebor C.O.

December 2016

Evaluation of different carbon and nitrogen sources for better growth and sporulation of T. harzianum (Th14)

An investigation was undertaken to evaluate the effectiveness of carbon and nitrogen sources on mycelial growth and sporulation of Trichoderma harzianum (Th14). Among the tested different carbon sources viz., jaggery, honey, sugar, dextrose and peptone, significantly maximum biomass and sporulation was observed in honey (1190 mg; 7.06×108) followed by dextrose (1037 mg; 5.27×108) and jaggery (992 mg;...

Author(s): D. Rai and A. K.Tewari

September 2016

Perception of climate extreme trends over three Ethiopian eco-environments: Comparison with records and analysis of determinants

Understanding household perceptions of climate change and determinants of such perceptions are important for planning community/household based climate change mitigation and adaptation strategies. In this study, herding/farming households’ perceptions were  studied and compared with recorded trends of extreme rainfall and temperature indicators from nearby weather stations across three eco-environments...

Author(s): Aklilu Mekasha, Chillot Yirga, Kindie Tesfaye, Lisanework Nigatu and Alan J. Duncan

August 2016

Bioremediation of oil polluted soil: Effect on hill bamboo (Drepanostachyum falcatum) plant emergence and height

This study presents the bioremediation effect on the performance of hill bamboo Drepanostachyum falcatum on different soil combinations affected by crude oil pollution. Bioremediation was applied into the soil combination substrates by adding biodegrading bacteria using Pseudomonas fluorescen and Bacillus subtilis. Six treatments made with combinations of soil, bacteria, fertilizer and crude oil were used for this...

Author(s): Himanshu Saini and I. D. Arya

July 2016

In planta seed transformation of Kenyan cowpeas (Vigna unguiculata) with P5CS gene via Agrobacterium tumefaciens.

Cowpeas (Vigna unguiculata) are important grain legumes grown by resource poor farmers across Sub-Saharan Africa. In Kenya, cowpeas continue to produce low yields due to erratic rainfall caused by the current climate change. This study sought to enhance drought tolerance in Kenyan cowpeas through transformation by Agrobacterium tumefaciens using L-Pyrroline-5-carboxylate synthase (P5CS) gene. Cowpea variety K80 was...

Author(s): Rachel Okeyo-Ikawa, Nelson Onzere Amugune, Norman Chege Njoroge, Pauline Asami and Timothy Holton

June 2016

Effect of rootstock type and scion cultivar on apple leaf total nitrogen in Chencha, GamoGofa zone, Southern Ethiopia

This study was conducted to evaluate the interaction between rootstock type and scion cultivar on total nitrogen (N) concentration in the leaf of grafted apple scion at Chencha district of GamoGofa zone, Toloa site. For this purpose rootstocks MM.104, MM.111, MM.106, and M.26 were planted in a completely randomized design with three replications under naturally acidic soil (pH 4.8) condition. After two months of growth...

Author(s): Kebede Jobir and Sabura Shara

May 2016

Anti-insect potential of a lectin from the tuber, Dioscorea mangenotiana towards Eldana saccharina (Lepidoptera: Pyralidae)

A lectin was purified from the tuber, Dioscorea mangenotiana in this study. The lectin agglutinated erythrocytes from human and rabbit, and the activity was inhibited by glucose and N-acetyl-D-glucosamine with minimum inhibitory concentration (MIC) of 50 and 25 mM, respectively.  The lectin was composed of two isoforms, DML I and DML II. The apparent native molecular mass of DML I was estimated at 51 kDa and the...

Author(s): Kehinde Alabi AKINYOOLA, Oludele Olayemi ODEKANYIN, Adenike KUKU and Mosudi Babatunde SOSAN

March 2016

Immobilization and association of microorganisms to improve fermentation performance for ethanol production

Alcohol production in industry is carried out almost exclusively by means of batch or continuous fermentation processes. In both cases, cells are found spread throughout the fermenting substrate and have to go through a centrifugation cycle in order to be recovered. Investment in equipment is very high and performance is often lower than expected. According to available information, ethanol fermentation performance...

Author(s): Nair Conde de Almeida and Dejanira de Franceschi de Angelis

February 2016

Contemporary prosopis dilemma: Perception of inhabitants of Sabian Kebele (Goro) towards invasive tree Prosopis juliflora, Eastern Ethiopia

The study was conducted in Sabian Kebele specifically Goro locality of Dire Dawa administration, Eastern Ethiopia. The study was aimed at assessing the perception of inhabitants of Sabian Kebele (Goro) towards the exceedingly invasive Prosopis juliflora species. The surveys were conducted between October 2014 and February 2015. The study population was selected based on their settling in P. juliflora infested locality...

Author(s): Shimles Ayalew and Getachew Mulualem

July 2015

Effect of soil variation on quality of shea butter in selected areas of the northern region of Ghana

Soil variation and its effect on the physical and chemical properties of shea butter, a product from the nut of the shea tree, were investigated in four districts of the northern region of Ghana. Thirty-six samples of freshly extracted shea butter together with 36 soil samples were collected and stored at 25°C for analysis. Clinical analysis of soil properties and the clinical analysis of the physical and chemical...

Author(s): Abdulai Adam, Akwasi Acheampong and Iddrisu Abdul-Mumeen,

June 2015

Innovation barriers and drivers in Sub-sahara African economies (1976-2012): A cointegration analysis

The study relied on secondary data accessed from World Bank data base spanning over 37 years (1976-2012). Data obtained were analyzed using canonical cointegration regression (CCR) method. It was found that poor education (secondary school enrollment) was exerting negative influence on innovation levels in SSA (p<0.05) in the long-run. Credit to the private sector as well as value of official aids received, labour...

Author(s): Onoja, A. O. & Emodi, A. I.

June 2015

Comparative effects of organic and inorganic soil amendments on the growth of cashew nut (Anacardium occidentale l.) seedlings

This experiment was established to investigate the comparative effect of organic and inorganic soil amendments on the growth of cashew seedlings. Cashew nuts were planted in potting medium filled with well drained loamy soil and placed in a screenhouse. Cashew seeds with 8 to 9 g weight were selected and viability test was carried out using Tetrazolium test (TZ) viability test to ascertain how viable the seeds were...

Author(s): Awodun M. A., Osundare O. T., Oyelekan S. A. and Okonji C. J.

May 2015

Comparative advantages of using modern technology for teaching-learning process in agricultural sciences in Jigjiga University, Ethiopia

Modern technology is the backbone approach for teaching technology education. It continues to be increasingly adopted and used by higher institutions in Ethiopia. The objective of this study was to identify the comparative advantages of using modern technology in improve teaching-learning process in agricultural sciences in Jigjiga University. This study was conducted with the sample of 4 departments, and a total of 16...

Author(s): Takele Geta and Bosenu Abera

April 2015

Institutional determinants of farmer participation in irrigation development post “fast-track” land reform program in Zimbabwe

Access to reliable irrigation enables farmers to adopt new technologies and intensify agricultural, water and land productivity. The Fast Track Land Reform Programme (FTLRP) of 2000 in Zimbabwe ushered in new, unskilled cadres in the irrigation sector, drastically reducing the area under irrigation from approximately 200,000 ha developed for irrigation to around 120,000 ha. This trend could be explained by lack of...

Author(s): K. Nhundu, A. Mushunje, L. Zhou and F. Aghdasi

March 2015

Effect of fermentation on proximate composition, physicochemical and microbial characteristics of pearl millet (Pennisetum glaucum (L.) R. Br.) and Acha (Digitaria exilis (Kippist) Stapf) flour blends

The objective of this study was to determine the effect of spontaneous fermentation on proximate composition, physicochemical and microbial characteristics of sprouted millet-acha blends with the aim of producing fermented flour blends for traditional beverage. Pearl millet and acha grains were sprouted, milled and blended into different ratios. The blends were mixed with water, fermented for 72 h and dried in an...

Author(s): A. O. Ojokoh, O. E. Fayemi, F. C. K. Ocloo and F. I. Nwokolo

October 2014

Survey on honey production system, challenges and Opportunities in selected areas of Hadya Zone, Ethiopia

The study was carried out in Hadiya zone to asses honey production systems, challenges and opportunities in the study area. A total of 196 farmers were selected randomly and interviewed using semi-structured questionnaires. The result shows most (90.7%) of the beekeepers in the study area have owned only traditional beehives. The average honey yield from traditional, transitional and frame hive was 3.04 ±0.92,...

Author(s): Haftu  Kebede and  Gezu Tadesse

September 2014

Innovation dynamics in cassava production systems in Uganda

Traditional knowledge has made appreciable contributions to people’s sustenance and livelihoods. Its contribution to science and technology is however not recorded, codified, stored or systematized to spur knowledge sharing and science and technology development. It continues to be ordinary, couched and associated with low prestige rural life. An innovation systems framework was used to study the dynamics and...

Author(s): Deborah Wendiro, Watu Wamae, Anne Kingiri, Margaret Dhabangi and Paul Alex Wacoo

July 2014

Characterization of wild genotypes of Aroeira: Subsidy for plant breeding

The selection of genetically superior materials of different forest species with economic potential involves studies of germplasm characterization. Facing the exploitation of aroeira (Schinus terebinthifolius Raddi.) in areas of natural occurrence the genetic and chemical characterization of individuals is extremely important to suit the selection. The work was carried out to identify genetic and chemical differences in...

Author(s): Danilla Cristina Lemos Souza, Laura Jane Gomes, Arie Fitzgerald Blank, Itamara Bomfim Gois, Glauber Santos Pereira, Péricles Barreto Alves, Renata Silva-Mann

July 2014

Production, consumption and nutritional value of cassava (Manihot esculenta, Crantz) in Mozambique: An overview

Both soils and climate in Mozambique suit cassava cultivation and nine million tons fresh weight is produced annually, with a consumption of 85 kg per person per year. The roots are a staple carbohydrate and cooked leaves are served as a vegetable. Cassava is essential to food security, as it is a subsistence crop. Roots and leaves contain vitamin C and some minerals but are deficient in proteins and amino-acids....

Author(s): Salvador E. M., Steenkamp V. and McCrindle C. M. E.

May 2014

Agrobacterium mediated transfer of nptII and gus genes in Camellia assamica

The present work is an attempt to develop transgenic hairy root system in Camellia assamica, using leaves infected by Agrobacterium rhizogenes strain LBA9402, harboring binary vector (pART27 and pBI121) carrying β-glucuronidase (gus) as reporter gene and neomycin phosphotransferase (nptII) as selection marker. The transformed hairy roots were grown in phytohormone free MS media in the presence of kanamycin 50...

Author(s): Neelakshi Bhattacharyya, Hijam Ranjit Singh, Niraj Agarwala, Prasenjit Bhagawati, Giasuddin Ahmed and Sudripta Das

April 2014

White rot (Sclerotium cepivorum Berk) - an aggressive pest of onion and garlic in Ethiopia: An overview

Allium crops are the most indispensable vegetable crops used as condiments in most Ethiopian cuisine. Among them, onion (Allium cepa L.) and garlic (Allium sativum L.) rightly called as “queen of kitchen”, belong to the family Alliaceae and considered as one of the most important vegetable and spice crops produced on large scale in Ethiopia, cultivated during dry and rainy seasons. The global pest, white...

Author(s): Mohammed Amin, Shiberu Tadele and Thangavel Selvaraj

April 2014

Plasmid profile of bacterial isolates from fertilizer amended tropical agro soils

This study assessed the profile of plasmids in the culturable heterotrophic bacterial isolates from organic swine waste (SW) and inorganic (NPK) fertilizer amended tropical soils of the Niger Delta region in Nigeria. Plasmid DNA was extracted and analyzed by agarose gel electrophoresis. Plasmid analysis of 70 fertilizer utilizing bacterial isolates revealed the presence of plasmids with molecular weights ranging from...

Author(s): Uduak Ugonma Ndubuisi-Nnaji, Itakufok George Uduak, Gideon Chukwuma Okpokwasili and Francisca Oby Nwaokorie

April 2014

Role of Dirhinus giffardii Silv. age on the parasitism preference to different days old pupae of Bactrocera zonata and Bactrocera cucurbitae

Apprehensions are mounting about the effects of pesticides on human and environment. Therefore, interest is being revived to use biological control, which is recognized as an important component of sustainable pest management. Dirhinus giffardii has been effectively used as pupal parasitoid for the management of fruit flies. Experiments were conducted to determine the suitable host age for rearing of the pupal...

Author(s): Muhammad Naveed, Anjum Suhail, Nazir Ahmad, Imran Rauf and Waseem Akbar

December 2013

Handling, processing and utilization of milk and milk products in Ezha district of the Gurage zone, Southern Ethiopia

A survey study was conducted in Ezha district of Gurage zone to understand the hygienic practices during production and further handling of milk and milk products; and their utilization. One hundred and twenty households were selected based on ownership of dairy cows, milk processing practice and willingness to participate in the study from two agro-ecologies (Dega and Woyna Dega) within the district. None of the...

Author(s): Abebe Bereda, Zelalem Yilma and Ajebu Nurfeta

December 2013

Effect of locust bean fruit pulp (parkia biglobosa) flour on the quality of wheat biscuits

Composite biscuits were produced from blends of wheat flour and African locust bean fruit pulp flour. The wheat/locust bean fruit pulp flours were mixed in the ratio of 100:0, 90:10, 85:15, 80:20 and 70:30%, respectively. The physical characteristics of the biscuits ranged in value, with diameter from 6.10 to 6.35cm, height from 1.08 to 1.20 cm, weight from 15.20 to 16.40 g, spread ratio from 4.90 to 5.88 and break...

Author(s): Zakari U. M., Ajayi S. A. and Hassan A.

September 2013

Determination of some agronomic characters in different age groups of traditional rice cultivars in Sri Lanka under fertilized and non-fertilized conditions

  Yields of traditional rice cultivars are typically low. The objective of this study was to understand the yield and agronomically important phenotypic traits of some traditional rice cultivars with different days to maturity at fertilized conditions. A field experiment was done at Faculty of Agriculture, University of Ruhuna, Mapalana, Kamburupitiya, Sri Lanka during Maha 2011 to 2012...

Author(s): A. L. Ranawake, U. G. S. Amarasinghe and S. G. J. N. Senanayake

Page 1 of 3, showing 50 records out of 122 total, starting on record 1, ending on 50