A5063506121- Plant Parasitism and Resistance
- Agronomic Practices and Intercropping Systems
- Legume Nitrogen Fixing Symbiosis
- Agricultural Innovations and Practices
- Weed Control and Herbicide Applications
- Rice Cultivation and Yield Improvement
- Plant responses to water stress
- Innovation and Socioeconomic Development
- GABA and Rice Research
- Allelopathy and phytotoxic interactions
- Agriculture and Rural Development Research
- Agriculture, Plant Science, Crop Management
- Nematode management and characterization studies
- Plant and animal studies
Mikocheni Agricultural Research Institute
2009-2022
This paper introduces Rapid Appraisal of Agricultural Innovation Systems (RAAIS). RAAIS is a diagnostic tool that can guide the analysis complex agricultural problems and innovation capacity system in which problem embedded. focuses on integrated different dimensions (e.g. biophysical, technological, socio-cultural, economic, institutional political), interactions across levels national, regional, local), constraints interests stakeholder groups (farmers, government, researchers, etc.)....
The parasitic weeds Striga asiatica and hermonthica cause high yield losses in rain-fed upland rice Africa. Two resistance classes (pre- post-attachment) several resistant genotypes have been identified among NERICA (New Rice for Africa) cultivars under laboratory conditions (in vitro) previously. However, little is known about expression of this field conditions. Here we investigated (1) whether exhibited controlled would express representative Striga-infested conditions, (2) achieve...
This paper provides a retrospective look at systems-oriented research program, on the increasing occurrence of parasitic weeds in rainfed rice sub-Saharan Africa, to qualitatively assess merits and identify challenges such approach. We gained broad contextual overview problem different stakeholders' roles, which enabled identification entry points for innovations weed management. At crop level infestation is associated with poor soil fertility water Farmers' infrequent use inputs control...
Summary Striga asiatica and Rhamphicarpa fistulosa are important parasitic weeds of rain‐fed rice, partly distributed in similar regions sub‐Saharan Africa ( SSA ). It is not evident whether their ecologies mutually exclusive or partially overlapping. In Kyela, a rice‐growing area south Tanzania where both parasites present, three transects about 3 km each across the upland–lowland continuum were surveyed June 2012 2013. A total 36 fields categorised according to position on as High, Middle...
Weed infestation, especially the Witchweed (Striga asiatica) is a serious problem in fertility-depleted soils of Tanzania. The use urea fertiliser known to control weed but resource-poor farmers cannot afford this technology due high costs involved. To alleviate Striga and soil fertility, green-manure applications could be an alternative strategy. Ths study was conducted (a) evaluate potential green manure against Striga, (b) determine inducing suicidal germination by selected manures. For...