A5067101518- Rice Cultivation and Yield Improvement
- GABA and Rice Research
- Climate change impacts on agriculture
- Food composition and properties
- Agricultural Systems and Practices
- Plant Micronutrient Interactions and Effects
- Plant responses to water stress
- Plant Virus Research Studies
- Weed Control and Herbicide Applications
- Soil Carbon and Nitrogen Dynamics
- Biological Control of Invasive Species
- Agricultural Innovations and Practices
- Allelopathy and phytotoxic interactions
- Crop Yield and Soil Fertility
- Insect-Plant Interactions and Control
- Cassava research and cyanide
- Plant-Microbe Interactions and Immunity
- Plant Pathogenic Bacteria Studies
- Irrigation Practices and Water Management
- Genetic Mapping and Diversity in Plants and Animals
- Agricultural pest management studies
- Genetics and Plant Breeding
Ethiopian Institute of Agricultural Research
2018-2024
University of Hohenheim
2020-2021
Rice University
2014
If future rice production is to contribute food security for the increasing population of sub-Saharan Africa (SSA), effective strategies are needed control weeds, crop's fiercest competitors resources. To gain better insights into farmers' access to, and use of, herbicides as part weed strategies, surveys were conducted in key locations across SSA. Farm held among 1965 farmers 20 countries collect data on yields, farmer's management practices, herbicide use, frequencies interventions...
Abstract The demand for rice in Eastern and Southern Africa is rapidly increasing because of changes consumer preferences urbanization. However, local production lags behind consumption, mainly due to low yield levels. In order set priorities research development aimed at improving productivity, there a need characterize the environments, quantify gaps—that is, difference between average on‐farm best farmers’ yield—and identify causes gaps. Such information will help identifying targeting...
Abstract Increasing demand for land to ensure human food security in the future has already impelled agricultural production into marginal areas. The environmental conditions found there have a more pronounced impact on productivity than systems used so far under favourable conditions. In addition this challenge, climate change is expected increase unreliability of weather (through increased variability and occurrence extremes) farmers considerably. This even serious developing countries’...
Abstract Accurate modelling of plant development is the basis for any assessment climate change impact on crop yields. Most rice models simulate (phenology) based temperature and photoperiod, but often reliability these reduced beyond environment they were calibrated for. In our study, we tested effects relative air humidity solar radiation leaf appearance rate in greenhouse experiments analysed data sets from field studies conducted two extremely different rice‐growing environments Nepal...
Abstract Due to land expansion and an increase in productivity, rice production sub‐Saharan Africa has been growing at a rate of 6% the past decade. Rainfed systems have accounted for large share this expansion. In these systems, potential period not only depends on length rainy season thus water availability, but is often, especially highlands East Africa, bordered by onset cool year, when low minimum temperatures compromise yields. The objective study was investigate yield 30 varieties...
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Rice yellow mottle virus (RYMV, genus Sobemovirus) is a major biotic constraint to rice production in Africa. First reported Kenya 1966, RYMV was later found most countries Africa where (Oryza sativa, O. glaberrima) grown (5). In the Federal Democratic Republic of Ethiopia, however, disease has never been fields. September 2012, plants with leaf yellowing and mottling symptoms were observed near Bahir Dar Fogera district northwestern part country during joint survey scientists from...
Rice (<i>Oryza sativa</i> L.) is increasingly becoming an important food crop in Ethiopia. However, the average rice productivity Ethiopia estimated at 2.8 t ha<sup>-1</sup> which much lower than world average, 4.6 ha<sup>-1</sup>. Its challenged due to a lack of appropriate and location-specific agronomic practices like application optimum doses nitrogen fertilizer use seeding rates. Thus, field experiment...
The full-length genomes of two isolates Rice yellow mottle virus from Ethiopia were sequenced. A comparison with 28 sequences East Africa showed that they clustered within a new strain named S4et, related to the S4mg and S4ug strains found in Lake Victoria Basin Madagascar, respectively.
Abstract The current practice of direct seeding in East‐African high‐altitude rice farming systems is constrained by water availability early the season and low temperatures later at crop's critical reproductive stage. Thus, productivity restricted as only short‐duration varieties can be grown due to risk crop failure. To fully exploit yield potential such rainfed systems, best combination establishment methods climatic ‘best fit’ genotypes required. In this study, nine were evaluated under...
In Ethiopia, the cultivation of lowland rice varieties is recently introduced. However, physicochemical and functional characteristics these are not reported. Therefore, this study was conducted to determine properties, proximate mineral compositions, cooking properties six (Demozie, Ediget, FOFIFA, Gumara, Hiber, X-jigna) cultivated in two locations (Fogera Pawe). Grain length, length-breadth (L/B) ratio, thousand kernel weights (TKW) were within ranges 5.16–7.19 mm, 1.81–2.6 22.13–29.43 g,...