A5065365820- Cocoa and Sweet Potato Agronomy
- Plant Disease Resistance and Genetics
- Oil Palm Production and Sustainability
- Auditing, Earnings Management, Governance
- Corporate Finance and Governance
- Plant and Fungal Species Descriptions
- Food Chemistry and Fat Analysis
- Plant pathogens and resistance mechanisms
- Coffee research and impacts
- Plant Virus Research Studies
- Plant-Microbe Interactions and Immunity
- Financial Reporting and Valuation Research
- Plant Pathogens and Resistance
- Plant Pathogenic Bacteria Studies
- Nutrition, Genetics, and Disease
- Ecology and Vegetation Dynamics Studies
- Plant and Fungal Interactions Research
- Impact of AI and Big Data on Business and Society
- Ecology and biodiversity studies
- Environmental law and policy
- Corporate Law and Human Rights
- Phytoplasmas and Hemiptera pathogens
- Legume Nitrogen Fixing Symbiosis
- Species Distribution and Climate Change
- Environmental Philosophy and Ethics
Inter-American Institute
2017-2022
Florida Gulf Coast University
2020
University of Leicester
2018
Ahmadu Bello University
2016
Louisiana State University Agricultural Center
2015
Agricultural Research Service
1995-2011
University of the West Indies System
2011
Beltsville Agricultural Research Center
2008
Plant (United States)
2008
Centro Agronomico Tropical de Investigacion y Ensenanza Catie
2007
Abstract This study examines whether the length of relationship between a company and an audit firm (audit‐firm tenure) is associated with financial‐reporting quality. Using two proxies for quality sample Big 6 clients matched on industry size, we find that relative to medium audit‐firm tenures four eight years, short three years are lower‐quality financial reports. In contrast, no evidence reduced longer nine or more years. Overall, our results provide empirical pertinent recurring debate...
Abstract In order to preserve and exploit the valuable genetic resources of tropical forest trees, such as cocoa, a systematic assessment available variability is necessary. The approach we have used based on simple mini‐prep DNA extraction procedure together with polymerase‐chain‐reaction‐ (PCR)‐based polymorphic assay (RAPD). Twenty‐five cocoa accessions: IMCs PAs collected from Peru LCTEENs Ecuador, which are difficult distinguish using morphological or biochemical descriptors, were...
Genetic markers linked with quantitative trait loci (QTL) may enable indirect selection of complex disease resistance. Construction separate linkage maps to identify QTL for each resistance common bean ( Phaseolus vulgaris L.) is unfeasible, however. We investigated whether selective mapping could be used hasten identification random amplified polymorphic DNA (RAPD) associated conditioning golden mosaic virus (BGMV) or bacterial blight (CBB) The population (‘Dorado’ × XAN 176) consisted 79 F...
Long-distance dispersal in microbial eukaryotes has been shown to result the establishment of populations on continental and global scales. Such "ubiquitous dispersal" claimed be a general feature eukaryotes, homogenising over large However, unprecedented sampling opportunistic infectious pathogens created by AIDS pandemic revealed that number important species exhibit geographic endemicity despite long-distance migration via aerially dispersed spores. One mechanism might tend drive such...
Flue-cured tobacco (Nicotiana tabacum) cultivar Coker 371-Gold (C 371-G) possesses a dominant gene, Ph, that confers high resistance to black shank disease, caused by race 0 of the soil-borne pathogen Phytophthora parasitica var. nicotianae. The origin this gene is unknown. Breeding lines homozygous for Ph were hybridized with NC 1071 and L8, flue-cured burley genotypes known possess qualitative genes from Nicotiana plumbaginifolia N. longiflora, respectively. F1 hybrids out-crossed...
Ashy stem blight [caused by Macrophomina phaseolina (Tassi) Goid.] can be a serious disease of common bean ( Phaseolus vulgaris L.) under drought and high temperature conditions in some regions. The mode inheritance valuable sources resistance is lacking. We studied field to ashy recombinant inbred population (‘Dorado’ × XAN 176) consisting 119 F S:7 lines (RILs) tested replicated experiments across 2 yr. A score from 1 9 (no severe disease) was used measure reaction. Moderate HNs (0.53...
Bulked segregant (BSA) and random amplified polymorphic DNA (RAPD) analyses were used to identify markers linked the dominant black shank resistance gene, Ph, from flue-cured tobacco (Nicotiana tabacum) cv. Coker 371-Gold. Sixty RAPD markers, 54 in coupling 6 repulsion phase linkage identified a K 326-derived BC1F1 (K 326-BC1F1) doubled haploid (DH) population. Thirty 26 4 screen 149 326-BC2F1 plants. Complete between Ph was confirmed by screening DH lines produced plants nurseries. OPZ-5770...
Population structure of the old Trinitario cacao ( Theobroma L.) in Trinidad was evaluated from 35‐microsatellite multilocus profile 32 relict clones abandoned cocoa estates (TRD) and 88 Imperial College selections (ICS) conserved International Cocoa Genebank, Trinidad. Ancestry derived by comparison to 34 representative genotypes Criollo, Central American, Lower Upper Amazon origin. The 154 individuals separated into four populations this study, labeled 1—Upper Amazon; 2—Ecuadorian; 3—Lower...
Abstract Green (unroasted) coffee is one of the most traded agricultural commodities in world. The Arabica (Coffea arabica L.) and Robusta canephora Pierre ex A. Froehner) species are two main types coffees for commercial production. In general, known to have better quality terms sensory characteristics; thus, it has a higher market value than coffee. Accurate differentiation green beans is, therefore, interest industry. Using newly developed single nucleotide polymorphism (SNP) markers, we...
Frosty pod rot (FPR), caused by the basidiomycete Moniliophthora roreri, is a devastating disease of cacao. First discovered in Ecuador 1917, FPR present main cacao producing countries Southern and Central America, except Brazil (López & Enríquez, 5; Evans, 3) but it has not been previously reported Caribbean. In August 2016, unusual symptoms were observed on pods farms Crooked River located parish Clarendon Jamaica. Examination affected fungal spores officers Research Development Division...
Abstract Frosty pod rot disease of cacao (FPR), caused by the fungus Moniliophthora roreri , has severely impacted production cocoa in Latin America since its discovery. Prior to 1950s, FPR was known only from Colombia and Ecuador. However, beginning 1970s, geographical range dramatically expanded throughout most cacao‐producing regions Americas. The origin pathogen remains unknown. In this study, we evaluated genetic diversity M . areas spanning, as much possible, current using...
Hemileia vastatrix is the most important fungal pathogen of coffee and causal agent recurrent disease epidemics that have invaded nearly every growing region in world. The development varieties resistant to H. requires fundamental understanding biology fungus. However, complete life cycle remains unknown, conflicting studies interpretations exist as whether fungus undergoing sexual reproduction. Here we used population genetics infer reproductive mode across its geographic range, including...
Theobroma cacao L. is an understory tree from the Amazon basin that can be cultivated in a sustainable agro-forestry system, providing income to small farmers while maintaining biodiversity. Four main genetic groups of are traditionally described: Criollo, Trinitario, and lower upper Forastero. During 17 th 18 centuries, plants derived number parents were distributed many tropical regions world, resulting commercial plantings with narrow base. Production America has been severely affected by...