A5053424933- Plant Virus Research Studies
- Agricultural pest management studies
- Plant Pathogenic Bacteria Studies
- Nematode management and characterization studies
- Banana Cultivation and Research
- Genetic and Environmental Crop Studies
- Legume Nitrogen Fixing Symbiosis
- Plant Disease Resistance and Genetics
- Cassava research and cyanide
- Insect-Plant Interactions and Control
- Plant tissue culture and regeneration
- Agronomic Practices and Intercropping Systems
- Plant Pathogens and Resistance
- Transgenic Plants and Applications
- Cocoa and Sweet Potato Agronomy
- Mosquito-borne diseases and control
- Plant and Fungal Interactions Research
- Plant Disease Management Techniques
- Potato Plant Research
- Plant Genetic and Mutation Studies
- Plant Pathogens and Fungal Diseases
- Phytoplasmas and Hemiptera pathogens
- Genetically Modified Organisms Research
- Peanut Plant Research Studies
- Agricultural Innovations and Practices
International Institute of Tropical Agriculture
2015-2024
International Institute of Tropical Agriculture
2014-2024
International Potato Center
2023
Sam Higginbottom Institute of Agriculture
2021
CGIAR
2020
International Crops Research Institute for the Semi-Arid Tropics
2001-2010
International Crops Research Institute for the Semi-Arid Tropics
1999-2007
The fall armyworm Spodoptera frugiperda is a prime noctuid pest of maize on the American continents where it has remained confined despite occasional interceptions by European quarantine services in recent years. currently become new invasive species West and Central Africa outbreaks were recorded for first time early 2016. presence at least two distinct haplotypes within samples collected Nigeria São Tomé suggests multiple introductions into African continent. Implications this threat to...
Cassava bacterial blight (CBB), incited by Xanthomonas axonopodis pv. manihotis ( Xam ), is the most important disease of cassava, a staple food source for millions people in developing countries. Here we present widely applicable strategy elucidating virulence components pathogen population. We report Illumina-based draft genomes 65 strains and deduce phylogenetic relatedness across areas where cassava grown. Using an extensive database effector proteins from animal plant pathogens,...
Cassava mosaic disease (CMD), caused by different species of cassava geminiviruses (CMGs), is the most important in Africa and Indian sub-continent. The cultivated protected from CMD polygenic resistance introgressed wild Manihot glaziovii a dominant monogenic type resistance, named CMD2, discovered African landraces. ability to confer high levels genetic backgrounds has led recently its extensive usage breeding across as well pre-emptive Latin America. However, landraces carrying are...
Seed systems for roots, tuber, and banana (RTB) crops receive relatively little attention from development-oriented research commercial seed sector actors, despite their importance food security, nutrition rural livelihoods. We review RTB systems—with particular reference to potato, sweetpotato, cassava, yam —to reflect on current system development approaches the unique nature of these systems. refer our own experiences, literature 13 case studies interventions identify gaps in knowledge...
Potyviruses (genus Potyvirus; family Potyviridae) are widely distributed and represent one of the most economically important genera plant viruses. Therefore, their accurate detection is a key factor in developing efficient control strategies. However, this can sometimes be problematic particularly species containing high amounts polysaccharides polyphenols such as yam (Dioscorea spp.). Here, we report development reliable, rapid cost-effective method for two potyviruses infecting based on...
The importance of cassava as a food security crop in Africa and the world Cassava, originally from South America, is fourth most important source calories developing after cereal crops wheat, maize, rice.Worldwide, it feeds an estimated 700 million people directly or indirectly.Cassava production has increased steadily for last 50 years, with 242 MT harvested 2012.The increase likely to continue farmers more than 105 countries come recognize crop's advantages.A semi-perennial root crop, can...
Seed systems research is central to achieving the United Nations Sustainable Development Goals. Improved varieties with promise for ending hunger, improving nutrition, and increasing livelihood security may be released, but how do they reach benefit different types of farmers? Without widespread adoption genetic gains achieved improved crop can never actualized. Progress has been made toward demand responsive breeding, however draft CGIAR 2030 Research Innovation Strategy fails recognize...
Abstract Globalization and changing climates are aggravating the occurrence impacts of transboundary pests, driving emergence new threats. Most low- middle-income countries in Africa, Asia Latin America not fully prepared terms surveillance, diagnostics, deployment plant health solutions due to several factors: adequate investment is lacking; knowledge inadequate; connections from local global, global insufficient. Effectively countering current emerging threats requires a holistic approach...
Vegetatively propagated crop (VPC) seed tends to remain true varietal type but is bulky, often carries disease, and slow produce. So VPC needs be handled differently than that of other crops, e.g., it sourced locally, must fresh, less sold on the market. Hence, a framework was adapted describe support interventions in such systems. The used with 13 case studies understand systems for roots, tubers, bananas, including differing roles sometimes conflicting goals stakeholders, identify...
Summary Pigeonpea sterility mosaic virus ( PPSMV ), a species of the genus Emaravirus , is causal agent disease SMD ) pigeonpea [ C ajanus cajan L .) M illsp]. This disease, dubbed ‘green plague’, as infected plants remain in vegetative state without flower production, has been reported from I ndia and few other South‐East Asian countries. estimated to result an annual yield loss over US $300 million alone. The aetiology which remained mystery for 70 years, was resolved with discovery 2000...
Vegetatively propagated crops suffer from yield loss and reduced stand density longevity caused by the build‐up of certain pests pathogens between successive plantings via infected planting material. Here, six seedborne phytosanitary problems banana are reviewed to evaluate whether a seed degeneration framework is useful tool identify approaches achieve healthier materials. Phytoparasitic nematodes weevils generate gradual declines in yields sucker health. Fusarium wilt bunchy top virus...
The geographic pattern of cropland is an important risk factor for invasion and saturation by crop-specific pathogens arthropods. Understanding networks supports smart pest sampling mitigation strategies. We evaluate global connectivity key vegetatively propagated crops (banana plantain, cassava, potato, sweet yam) food security in the tropics. For each crop, potential movement between location pairs was evaluated using a gravity model, with associated uncertainty quantification. highly...
The international collections of plant genetic resources for food and agriculture (PGRFA) hosted by 11 CGIAR Centers are important components the United Nations Food Agriculture Organization's global system conservation use PGRFA. They also play an supportive role in realizing Target 2.5 Sustainable Development Goals. This paper analyzes genebanks' trends acquiring distributing PGRFA over last 35 years, with a particular focus on decade. highlights number factors influencing Centers'...
Taro is an ancient nutritional and medicinal crop woven into the fabric of socio-economic life those living in tropics sub-tropics. However, West Africa (WA), which has been a major producer for several decades, experiencing significant decline production as result taro leaf blight (TLB), disease caused by Phytophthora colocasiae Raciborski. A lack research on WA means that available innovative technologies have not fully utilized to provide solutions inherent challenges enhance status crop....