African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6359

Table of Content: August, 2020; 16(8)

August 2020

Effect of scattered tree species on the diversity, abundance and biomass of pastures in a sedentary grazing system in South-western Uganda

Tree species play a significant role in sustaining the productivity of grazing lands. However, information on appropriate species to use in restoring degraded grazing areas is limited. This study used 120 trees to assess the effect of 8 tree species on pasture diversity, abundance and biomass. This was done in a total of 960 quadrats of 1 m2 established under tree canopies and 5 m away from the edge of tree canopies. In...

Author(s): Dina Nabasumba, Halid Kirunda, Robert Muzira, Gershom Tugume, Steven Natuha and Geoffrey Akiiki Beyihayo  

August 2020

Influence of distance between plants and pruning of axillary buds on morphological and productive characteristics of tomato plants

This research was carried out for 120 days in the horticulture area of the Universidad Nacional de Concepción, Facultad de Ciencias Agrarias to evaluate how morphological and productive characteristics of tomato plants were influenced by the distance between plants and the pruning of axillary buds. The design used in the experiment was the randomized block method with factorial arrangement (3x3); factor A was the...

Author(s): Oscar Caballero Casuriaga, Eulalio Morel López, Pabla Arguello Arguello, Amílcar Isidro Servín Niz, Modesto Osmar DaSilva Oviedo, Wilfrido Lugo Pereira, Derlys Fernando López Ávalos, Adolfo Leguizamón and Ruth Pistilli de Franco

August 2020

Participatory upland rice (Oryza sativa L.) seed rate determination for row method of sowing under irrigated eco-system

A field experiment was conducted in 2013 cropping season at Bedloale and Werer sites in Amibara district, Afar Regional State, to determine optimum seeding rate for row method of sowing for productivity of rice (Oryza sativa L.) under irrigated ecosystem. The experiment was conducted with five levels of seed rate treatments (50, 60, 70, and 80 kg ha-1 and local practice) laid out in a randomized complete block design...

Author(s): Fikeremariam Tegegn, Tamiru Dejen, Brehanu Woldu, Getnet Belay and Adem Kedir  

August 2020

Performance of faba bean (Vicia faba L.) varieties grown under broomrape (Orobanche spp.) infestation in South Tigray, Ethiopia

Broomrapes (Orobanche spp.) are the serious roots parasitic weed to legumes crop production in many countries. In Ethiopia, Orobanche crenata is a dominant parasite and a major constraint to faba bean (Vicia faba L.) cultivation, especially in the Northern parts of the country. Presently, it reduces crop production and has forced farmers to stop growing faba bean crop. Thus, it is necessary to find new sources of...

Author(s): Lemma Diriba, Firew Mekbib and Mussa Jarso  

August 2020

An update of sweet potato viral disease incidence and spread in Ethiopia

Sweet potato (Ipomoea batatas (L.) Lam.) is an important root crop for poor farmers in developing countries. Since the late 1980s, viral diseases have increasingly become a threat to sweet potato production in Ethiopia. This review paper presents the role of sweet potato production for ensuring food security, the level of sweet potato virus research, including the types of viral species identified and their current...

Author(s): D. H. Buko, A. Gedebo, C. Spetz and A. K. Hvoslef-Eide  

August 2020

Impact of soil management and irrigation techniques on water use efficiency in cauliflower cultivation

The objective of this research is to evaluate the impact of soil management and localized irrigation techniques on water use efficiency in the cultivation of cauliflower. The treatments consisted of 4 different types of soil management: Direct seeding using crotalaria and brachiaria cover crops, a treatment used both in conjunction, and another that employed a conventional system. Two different irrigation techniques...

Author(s): Amilcar Isidro Servín Niz, Luciano Oliveira Geisenhoff, Guilherme Augusto Biscaro, Dhoni Meurer, Modesto Osmar Da Silva Oviedo, Eulalio Morel López, Oscar Luis Caballero Casuriaga and Hugo González Villalba  

August 2020

Global analysis of millet-based household farms: Characterization of the Senegalese production system of Niayes and Groundnut basin areas

Niayes and Groundnut basin areas are among the largest strongholds of rainfed agriculture in Senegal. In the agricultural holdings of both agro-ecological areas, main speculations are far from optimizing their agronomic production potential. In order to analyze the organizational capacity and decision-making processes of producers, a global agronomic diagnostic work was undertaken out on the scale of 180 agricultural...

Author(s): Diallo Mountakha, Ndir Khadidiatou, Diop Amadou M., Dieye Bineta and Ndiaye Saliou  

August 2020

Retrospective study of the contamination of exported sesame by Salmonella species from 2007 to 2017 in Burkina Faso

Sesame (Sesamum indicum) is one of the oldest and most traditional oilseed crops, valued for its high-quality seed oil. This culture was introduced in Burkina Faso at the beginning of the 20th century where it occupies a place of cash crop. The majority of sesame produced in Burkina Faso is export oriented. However, the contamination by Salmonella remains an unsolved problem. This retrospective study was carried out in...

Author(s): Muller K. A. Compaoré, Virginie Marie Yougbaré, René Dembélé, Fulbert Nikièma, Kabré Elie, and Nicolas Barro  

August 2020

Inhibition of root growth as mode of action of two rice yellow mottle virus pathotypes isolated in Mali

In Mali, the economy is mainly based on agriculture. Rice contributes about 5% of the GDP and constitutes a strategic sector with enormous potential. Despite its strategic importance, rice cultivation faces multiple biotic constraints among which rice yellow mottle virus disease is the most important one with an incidence varying from 60 to 100%. To reduce yield loses due to this disease, we determined the mode of...

Author(s): Bakaye Doumbia, Amadou Hamadoun Babana, Sognan Dao, Salimatou Samaké, Adounigna Kassogué, Rokiatou Fané, Valacia Lemes Da Silva Lobo, Diakaridia Traoré, Stephen Machado and Linda Kinkle  

August 2020

Constraints limiting the improvement of manure management as climate smart technology for smallholder dairy farmers

The global quest for a sustainable bio-economy has brought to the fore importance of engaging agricultural systems in the production and in practice change. There have been issues limiting farmers from improving the practice of manure management as smart climate technology. The objective of this paper was to highlight the constraints, type, and valuation of manure types and information sources that smallholder dairy...

Author(s): Jesse O. Owino¬, , Daniel Olago, Shem O. Wandiga and Asaah Ndambi  

August 2020

A literature review on yield gaps of various root, tuber and banana crops as a background for assessing banana yield reductions due to pests and diseases at a field site in western Burundi

Banana pests (corm weevil and root nematodes) and diseases (Xanthomonas wilt of banana, banana bunchy top disease and fusarium wilt) are major constraints to banana production in Central Africa. The pests cause various degrees of yield reduction, while plants affected by three of the diseases eventually die before producing an edible bunch. Studies on yield gaps for most of these constraints are currently limited. This...

Author(s): Guy Blomme, Walter Ocimati, Alexandra Zum Felde, David Amwonya and Deo Kantungeko

August 2020

Quantitative trait loci (QTL) mapping of resistance to coffee berry disease (Colletotrichum kahawae Waller & Bridge) in Coffea arabica L. variety Rume Sudan

Coffee Berry Disease (CBD) is a major constraint that limits Coffea arabica production, whose resistance is governed by three genes, T, R that are dominant and recessive k in varieties Hibrido de Timor (HDT), Rume Sudan (RS) and K7 respectively. This study identified the genomic region occupied by R-gene using F2 genotypes from varieties RS and SL28; and Single Nucleotide Polymorphic (SNP) markers obtained through...

Author(s): James Mwita Gimase, Wilson Muriithi Thagana, Chrispine Ogutu Omondi, Jane Jerono Cheserek, Bernard Mukiri Gichimu  and Elijah Kathurima Gichuru  

August 2020

Intrapopulation phenotypic variation in Piartal (Chenopodium quinoa Willd.) from the Department of Boyacá, Colombia

Chenopodium quinoa Willd., is an interesting plant with a great adaptation to adverse environmental factors and exceptional nutritional qualities. It shows great genetic variation, which organization remains poorly documented. In Boyacá, there are few studies on the morphological characterization of cultivated materials, and there is no certified planting material, resulting that the farmers are planting a...

Author(s): Ana Cruz Morillo C., Elsa Helena Manjarres H., Wendy Lorena R. and Yacenia Morillo C.  

August 2020

Grass species for range rehabilitation: Perceptions of a pastoral community in Narok North sub-county, Kenya

Land degradation is a global problem leading to a diminished production capacity of the rangelands. The consequence is reduced potential to provide ecosystem services and increased vulnerability to the inhabitants. Biological soil water conservation measures can reverse the trend. Different communities prefer different grass species for rehabilitation as communities vary in location, needs, priorities, preferences and...

Author(s): Kamau, Hannah Nyakio, Koech, Oscar Kipchirhir, Mureithi, Stephen Mwangi, Wasonga, Oliver Vivian and Gachene, Charles Karanja Kabiru  

August 2020

Phenotyping sorghum [Sorghum bicolor (L.) Moench] for drought tolerance with special emphasis to root angle

The study was conducted to characterize early maturing sorghum genotypes under moisture stress and non-stress environments based on root angle. Phenotyping of 23 early maturing sorghum genotypes was carried out under post-flowering moisture stress and non-stressed environment using randomized complete block design (RCBD) in two replications at Werer Agricultural Research Center in 2018 off season. The genotypes were...

Author(s): Firezer Girma, Firew Mekbib, Taye Tadesse, Temesgen Menamo and Kassahun Bantte