Abbreviation: Afr. J. Agric. Res.
Start Year: 2006
Page 1 of 270, showing 20 records out of 5383 total, starting on record 1, ending on 20
DOI: 10.5897/AJAR2016.11895[Article Number: D3C283C63441]
Carotenoids are a class of yellow-orange-red pigments distributed in various fruits, spices, herbs and especially in vegetables. These pigments are bioactive components essential to human health. Among the numerous classes of carotenoids, a smaller number is known for having provitamin A activity. This vitamin is essential to the organism in the proper functioning of the vision and the immune system. On the other hand,... Read more.
DOI: 10.5897/AJAR2016.12027[Article Number: 401C0C363443]
This study aimed to evaluate the effects of seed-furrow openers and soil compaction on parameters such as sowing quality and root growth of soybean. The experiment was conducted using a randomized blocks experimental design with split plots, with the plots arranged by compaction level (1.16, 1.20, 1.22 and 1.26 Mg m-3) and the subplots by type of furrow opener (double disk and shank type). Root growth was assessed at... Read more.
DOI: 10.5897/AJAR2016.11902[Article Number: 934FE9463450]
Microbial contamination of sweet sorghum juice can result in loss of fermentable sugars used as bioproducts. A carbamate-based biocide in doses of 200 and 400 ppm used in the sugarcane industry was applied to sorghum juice collected from 4 and 8 in billets, or whole stalks, and growth of microbes was evaluated. Dosing with 200 ppm biocide reduced the microbial count in juice samples by approximately 99%, but a residual... Read more.
DOI: 10.5897/AJAR2016.11181[Article Number: D4762B863452]
The cultivation of that legume is widespread throughout the country presenting high expression in the social and economic issues. The aim of this work was to evaluate the agronomic characteristics and disease incidence in ten common bean (Phaseolus vulgaris L.) cultivars grown in Cerrado soils. The research was developed under field conditions during two cropping years. The studied cultivars were: IAC - Galante, IAC -... Read more.
DOI: 10.5897/AJAR2016.11927[Article Number: 3A5005A63454]
The aim of this study was to characterize phenotype indigenous sheep population in central zone of Tigray. A total of 450 adult sheep were sampled randomly for this purpose. Based on dentition adult sheep were classified into four age categories. Average BW of the sampled sheep in Tanqua-Abergelle, Kola-Tembien and Adwa districts were (20.19±0.19, 22.18±0.22 and 23.68±0.33) kg, respectively.... Read more.
DOI: 10.5897/AJAR2017.12220[Article Number: 0057DCE63456]
The aim of this study was to verify differences in the tolerance to suboptimal temperatures of eight rice mutant genotypes in relation to their cultivars of origin in the initial stages of development. During the germination period, the germination percentage and the germination rate index were evaluated at temperatures of 25 and 13°C. For the vegetative stage enzymatic indicators, photosynthetic pigment... Read more.
DOI: 10.5897/AJAR2017.12223[Article Number: B17A25A63459]
The experiment was conducted at Teaching and Research Farm of University of Port Harcourt between May and August, 2016 to determine the influence of different soil management practices on soil organisms and maize yield (Zea mays L.) in South Eastern Nigeria. The experiment consisted of six treatments, namely: control (no application), cover crop (pumpkin cover), 10 t/ha dry guinea grass mulch (dead mulch), 10 t/ha... Read more.
DOI: 10.5897/AJAR2016.11465[Article Number: 2B7B88063462]
Soil compaction due to traffic is the process whereby soil bulk density is increased. The compaction level depends on the weight of the vehicle, and the soil susceptibility to compaction, which is characterized by its mechanical properties (that is, the stress-strain relationships). The plate penetrometer can be used to quantify the levels of soil compaction in-situ and supply a larger number of information on the... Read more.
DOI: 10.5897/AJAR2016.11922[Article Number: D0D419463465]
Invasive alien weed species; are non-indigenous species that have adverse economic, environment and ecological effects on habitats where they have been introduced, either accidentally or deliberately, outside their normal past or present distribution. The objective of this study was to determine the distribution and abundance of emerging invasive weeds in West Shewa and East Wollega Zones of Western Oromia. The... Read more.
DOI: 10.5897/AJAR2016.11965[Article Number: CA9B06163467]
Salt stress is one of the most adverse abiotic environmental factors that inhibit growth and productivity of plants. This experiment was carried out at physiology laboratory, Addis Ababa University. Sorghum landraces (sorcoll163/07 and sorcoll141/07) were collected with many other landraces from different sorghum growing regions of Ethiopia and they were selected for their stay-green traits and drought tolerance... Read more.
DOI: 10.5897/AJAR2016.11739[Article Number: 583BDCA63469]
This study was conducted at Arba Minch Zuria Woreda. The area lacks in-depth studies to identify the determinant factors that influence the use of irrigation water. In the study area it is also not well known to what extent the households using irrigation water were better-off than those who depend on rain-fed agriculture. Therefore, the study was focused on assessing the determinants of small-scale irrigation... Read more.
DOI: 10.5897/AJAR2016.10840[Article Number: 63CCC4763471]
At high concentrations, Aluminium (Al) can be a serious threat to agricultural production because it inhibits growth of the roots, inducing oxidative stress, callose induction, peroxidation of the cellular membrane, nutrient imbalances and ends with cell death. This finding aimed to investigate threshold toxicity level of Al on finger millet varieties. The threshold value was determined by wrapping and germinating... Read more.
DOI: 10.5897/AJAR2016.12089[Article Number: D38400263479]
Rice yellow mottle virus (RYMV) is the most important rice - infecting virus in Africa. Isolates of the virus were collected from Eastern, Southern and Northern Provinces of Sierra Leone and evaluated for pathogenicity on rice, using visual symptom rating and other disease-related traits such as plant height and yield depression. Near Iso-lines NIL 2, NIL 16, NIL 54 and NIL 130, developed by AfricaRice and... Read more.
DOI: 10.5897/AJAR2016.12011[Article Number: AC4B20563481]
This study aimed to identify the irrigation depth (305, 436, 567 and 698 mm), applied on the basis of crop evapotranspiration- ETc (the depth of 567 mm was equal to 100% of ETc) for best yield (Y) and water use efficiency (WUE) for irrigation and soil water stress tolerance (Ky) of sesame BRS 196 CNPA G4. The experiment was conducted at Embrapa Cotton, Barbalha County, CE State, Brazil, in 2012. The experimental design... Read more.
DOI: 10.5897/AJAR2016.12052[Article Number: AC3906663493]
Pesticide chemical residues in produce and products are a global concern in human and animal diets. Nemarioc-AL (a.i. cucurbitacin A) and Nemafric-BL (a.i. cucurbitacin B) phytonematicides serve as alternatives to synthetic nematicides in the management of root-knot nematodes (Meloidogyne spp.) in tomato (Solanum lycorpersicum) production. Cucurbitacins are the bitterest chemical compounds, and therefore, could affect... Read more.
DOI: 10.5897/AJAR2016.11518[Article Number: B546B8663264]
Ethiopia is the second largest producer of wheat in sub-Saharan Africa although yields remain considerably below the global average due to several production constraints. The aim of the study was to identify the primary threats to wheat production, farmers’ selection criteria for wheat varieties, and disease management practices with emphasis on wheat rusts in the Arsi, Bale and West Shewa administrative zones of... Read more.
DOI: 10.5897/AJAR2016.12088[Article Number: 406A95663279]
Maize which remains the most important food crops in the sub-Saharan Africa is expected to register about a 10% drop in net production globally by 2055. Poor farming techniques, economic diversification in the developing countries due to increased industrialization, could partly explain this trend but addressing food security problem reflected in the world malnourished figures remains a core component of the sustainable... Read more.
DOI: 10.5897/AJAR2016.11300[Article Number: B03879E63268]
Sugarcane planters must simultaneously perform furrowing, fertiliser application, seedling metering and furrow covering operations. Thus, the objective of this study was to evaluate the planting operational stages (including furrow opening, size and shape; the uniformity of seedling metering; and furrow closing) as a function of the planting speed and furrow depth. A completely randomised, 2x2 factorial design was... Read more.
DOI: 10.5897/AJAR2016.11931[Article Number: CE3354A63270]
Baby corn maize (Zea mays L.) is a highly profitable alternative to farmers due to its short crop duration, being harvested at the juvenile stage. It demands large amounts of nutrients in a short time, especially nitrogen, which is responsible for the rapid development of crop. This study aimed to evaluate the effect of topdressing application of different doses of nitrogen on the vegetative and spikelet... Read more.
DOI: 10.5897/AJAR2016.11314[Article Number: 918EB0C63272]
The experiment was carried out to access the inter relationship of genotypes in their oil yield with seed yield, oil content and other yield components and to determine cluster of white seeded sesame genotypes and environments based on their oil yield. Seventeen sesame genotypes were tested at six environments in northern Ethiopia during 2015 main season. The experiment was laid out in Randomized Complete... Read more.
Page 1 of 270, showing 20 records out of 5383 total, starting on record 1, ending on 20