A5041761259- Plant pathogens and resistance mechanisms
- Agronomic Practices and Intercropping Systems
- Plant and soil sciences
- Legume Nitrogen Fixing Symbiosis
- Agricultural and Food Production Studies
- Agricultural pest management studies
- Agricultural Innovations and Practices
- Plant Pathogenic Bacteria Studies
- Plant Disease Management Techniques
- Plant Pathogens and Fungal Diseases
- Soybean genetics and cultivation
- Genetics and Plant Breeding
- Nematode management and characterization studies
- Plant Virus Research Studies
- Plant Parasitism and Resistance
- Turfgrass Adaptation and Management
- Species Distribution and Climate Change
- Banana Cultivation and Research
- Animal and Plant Science Education
- Yeasts and Rust Fungi Studies
- Firm Innovation and Growth
- Economics of Agriculture and Food Markets
- Plant nutrient uptake and metabolism
- Agriculture and Rural Development Research
- Plant-Microbe Interactions and Immunity
Zamorano Pan-American Agricultural School
2014-2024
Organization for Tropical Studies
2024
German Cancer Research Center
2023
Heidelberg University
2023
Universidade Federal do Amazonas
2022
Instituto de Investigaciones Agropecuarias
2014
University of Nebraska–Lincoln
2014
Universidad Técnica Latinoamericana
2012-2013
North Dakota State University
2013
University of Florida
2008
Root architectural traits that increase topsoil foraging are advantageous for phosphorus acquisition but may incur tradeoffs the of deep soil resources such as water. To examine this relationship, common bean genotypes contrasting rooting depth were grown in field and greenhouse with stress, water stress combined stress. In greenhouse, availability vertically stratified to approximate conditions, higher upper layer more moisture bottom layer. Under shallow-rooted grew best, whereas under...
Crop adaptation to climate change requires accelerated crop variety introduction accompanied by recommendations help farmers match the best with their field contexts. Existing approaches generate these lack scalability and predictivity in marginal production environments. We tested if crowdsourced citizen science can address this challenge, producing empirical data across geographic space that, aggregate, characterize varietal climatic responses. present results of 12,409 farmer-managed...
SUMMARY Rapid climatic and socio-economic changes challenge current agricultural R&D capacity. The necessary quantum leap in knowledge generation should build on the innovation capacity of farmers themselves. A novel citizen science methodology, triadic comparisons technologies or tricot , was implemented pilot studies India, East Africa, Central America. methodology involves distributing a pool different combinations three to individual who observe these under farm conditions...
Seedling root phenotypes may have important impacts on fitness and are more easily measured than mature phenotypes. We phenotyped the roots of 577 genotypes common bean (Phaseolus vulgaris), representing bulk genetic diversity for recent cultivars landraces in this species. Root architectural seedlings germinated nine days were compared to field as well seed yield across 51 environments with an array abiotic stresses including drought, nutrient deficiency, heat, non-stress conditions....
The genetic improvement of economically important production traits dry bean (Phaseolus vulgaris L.), for geographic regions where is threatened by drought and high temperature stress, challenging because the complex nature these traits. Large scale SNP data sets two major gene pools bean, Andean Middle American, were developed mapping multiple genotype-by-sequencing reads identifying over 200k SNPs each pool against most recent assembly P. genome sequence. Moderately sized B ean A biotic S...
SUMMARY Twenty cultivars of P. vulgaris differing in growth habit, and inoculated with an efficient strain R. phaseoli , were sampled weekly the period 22—99 days after planting. Acetylene reduction specific nodule activity similar to or better than those reported for other grain legumes, higher achieved by a soya-bean cultivar. Though active fixation was limited, nitrogen gains estimated at 25—30 kg/ha/growing cycle obtained. Climbing beans superior bush acetylene activity, but differed...
Abstract Soils in the major bean ( Phaseolus vulgaris L.) producing regions of Latin America are frequently deficient both P and N. With fertilizer available to small farmers limited, appropriate strategy for efficient use could depend on relative requirements plant nodule development N fixation this species. In field study objective was examine growth, distribution, parameters 2 (C H ) cultivars at different levels fertilization. Seeds from 30 (replicates) were inoculated lime pelleted,...
The study intended to (1) assess changes of health-related quality life (HRQoL) between early treatment-related time points and 10 years post-treatment in a cohort breast cancer (BC) patients who received radiotherapy (RT), (2) evaluate differences HRQoL long-term BC survivors unaffected women from the same geographical region (3) identify determinants survivor cohort.292 were recruited prior RT after breast-conserving surgery 1998 2001 Germany prospectively followed up for median 11.4...
Bean rust, caused by the fungus Uromyces appendiculatus, is a major constraint for common bean production worldwide. Virulence of U. appendiculatus collected from wild and cultivated Phaseolus spp. was examined in 28 locations across Honduras. Host accessions representing domesticated at same sampling were evaluated resistance against appendiculatus. In total, 91 pathotypes identified 385 isolates according to their virulence on each 12 host differentials. No significant difference pathogen...
The article describes the institutionalization of farmer participatory research and plant breeding that has occurred in Honduras over past 22 years demonstrates how this approach can offer a positive response to climate change sustainable agricultural development. In Honduras, (PPB) involves collaboration researchers organized local committees (CIALs), breeders, non-governmental organizations (NGOs). While earlier debates often questioned role farmers research, particularly synergistic...
Abstract Participatory approaches for crop variety testing can help breeding teams to incorporate traditional knowledge and consider site‐specific sociocultural complexities. However, participatory have drawbacks are seldom streamlined or scaled. Decentralized on‐farm supported by citizen science addresses some of these challenges. In this study, we compare a approach — triadic comparisons technology options (tricot‐PVS) with the benchmark state‐of‐the‐art group‐based (group‐PVS) over set...
Cardiovascular disease (CVD) is a major cause of mortality in the Republic Mexico, and metabolic syndrome, complex CVD risk factors, increasingly prevalent. To date, however, there have been few studies genetic epidemiology syndrome Mexico. As first step implementing GEMM Family Study, large, multicenter collaborative study, we recruited 375 individuals 21 extended families, without ascertainment on disease, at 9 medical institutions across Participants were measured for anthropometric...
Web blight (WB), caused by Thanatephorus cucumeris (Frank) Donk (anamorph: Rhizoctonia solani Kühn), is an important disease of common bean ( Phaseolus vulgaris L.) in the humid tropics. Common bacterial (CBB), Xanthomonas axonopodis pv. phaseoli (Smith) Vauterin et al., and Bean mosaic virus (BCMV) pose a threat to production throughout world. The development release dry cultivars with enhanced levels resistance these other diseases goal University Puerto Rico (UPR) breeding program....
Genetic resistance is the primary means for control of Bean golden yellow mosaic virus (BGYMV) in common bean ( Phaseolus vulgaris L. ). Breeding difficult because sporadic and uneven infection across field nurseries. We sought to facilitate breeding BGYMV by improving marker-assisted selection (MAS) recessive bgm-1 gene identifying developing MAS quantitative trait loci (QTL) conditioning resistance. linkage mapping two recombinant inbred line populations genome-wide association study...
Abstract Location‐specific information is required to support decision making in crop variety management, especially under increasingly challenging climate conditions. Data synthesis can aggregate data from individual trials produce that supports plant breeding programs, extension services, and of farmers. on‐farm using the novel approach triadic comparison technologies (tricot) are available, which more insights could be gained a approach. The objective our study was present applicability...
Abstract Field and greenhouse experiments were conducted to study the relationships among plant growth traits; ratios of dry weights nodules, roots, shoots; traits associated with N 2 -fixation potential common bean ( Phaseolus vulgaris L.). The parts differed 10 lines studied. A visual nodulation score used evaluate was correlated positively nodule weight, acetylene reduction (AR) value, root shoot weight for plants grown under both field conditions. AR values, scores in respective figures...
Summary Plant and nodule development nitrogen fixation were studied in two climbing cultivars of Phaseolus vulgaris , grown monoculture, or associated with maize populations differing growth characteristics. Bean cultivar P590 showed similar plant pod fresh weight monoculture when a vigorous landrace maize, interspecific competition becoming significant only 92 days after planting. Nitrogen (C 2 H ) this was greatest 68 planting declined rapidly thereafter, showing no differences between...
Dry edible bean ( Phaseolus vulgaris L.), a staple food crop for many tropical countries, is not well adapted to the hot temperatures and low rainfall that prevail during dry seasons. Cultivated tepary acutifolius A. Gray var. latifolius Freeman), an small‐seeded desert annual with extreme tolerance drought, may be suited dry‐season production in tropics. To test this hypothesis, potential of select cultivated germplasm was evaluated different environments compared bean. Eleven lines...