A5023682721- Legume Nitrogen Fixing Symbiosis
- Crop Yield and Soil Fertility
- Genetics and Plant Breeding
- Genetic Mapping and Diversity in Plants and Animals
- Remote Sensing in Agriculture
- Agronomic Practices and Intercropping Systems
- Genetic and Environmental Crop Studies
- Soybean genetics and cultivation
- Plant Micronutrient Interactions and Effects
- Agricultural pest management studies
- Phytase and its Applications
- Smart Agriculture and AI
- Nematode management and characterization studies
- Leaf Properties and Growth Measurement
- Plant nutrient uptake and metabolism
- Climate change impacts on agriculture
- African Botany and Ecology Studies
- Plant Stress Responses and Tolerance
- Rice Cultivation and Yield Improvement
- Agriculture and Rural Development Research
- Plant responses to water stress
- Remote Sensing and LiDAR Applications
- Wheat and Barley Genetics and Pathology
- Plant responses to elevated CO2
- Spectroscopy and Chemometric Analyses
Université de Maradi
2013-2024
Ecologie fonctionnelle & biogéochimie des sols & des agro-systèmes
2013-2015
Université Abdou Moumouni
2015
Centro Internacional de Mejoramiento de Maíz Y Trigo
2015
International Crops Research Institute for the Semi-Arid Tropics
2011-2013
Institut National de la Recherche Agronomique de Tunisie
2006-2013
Czech Agrifood Research Center
2012
Institut National de la Recherche Agronomique
2011
International Crops Research Institute for the Semi-Arid Tropics
2011
University of Göttingen
2009
As a major contributor to the reduced nitrogen pool in biosphere, symbiotic fixation by legumes plays critical role sustainable production system. However this legume contribution varies with physico-chemical and biological conditions of nodulated-root rhizosphere. In order assess abiotic biotic constrains that might limit symbiosis at agroecosystem level, nodular diagnosis is proposed common bean as model grain-legume, source plant proteins for world human nutrition. The engineering...
Recent developments in unmanned aerial platforms (UAP) have provided research opportunities assessing land allocation and crop physiological traits, including response to abiotic biotic stresses. UAP-based remote sensing can be used rapidly cost-effectively phenotype large numbers of plots field trials a dynamic way using time series. This is anticipated tremendous implications for progress genetic improvement. We present the use UAP equipped with sensors multispectral imaging spatial...
Fall armyworm (FAW, Spodoptera frugiperda J.E. Smith) is an invasive lepidopteran pest established in most of sub-Saharan Africa since 2016. Although the immediate reaction governments has been to invest chemical pesticides, control methods based on agronomic management would be more affordable resource-constrained smallholders and minimize risks for health environment. However, little known about effective practices that could FAW under typical African smallholder conditions. In addition,...
Chickpea is mostly grown on stored soil moisture, and deep/profuse rooting has been hypothesized for almost three decades to be critical improving chickpea tolerance terminal drought. However, temporal patterns of water use that leave available reproduction grain filling could equally critical. Therefore, variation in pattern root depth/density were measured, their relationships yield tested under fully irrigated drought stress, using lysimeters provided volumes equivalent field conditions....
Chickpea (Cicer arietinum L.) is often exposed to terminal drought, and deep, profuse rooting has been proposed as the main breeding target improve drought tolerance. This work tested whether plant water use at vegetative stage under non-limited conditions could relate degree of sensitivity chickpea drought. Transpiration response a range vapour pressure deficits controlled outdoor was measured with canopy conductance using gravimetric measurements thermal imagery in eight genotypes...
Maize crop production is constrained worldwide by nitrogen (N) availability and particularly in poor tropical subtropical soils. The development of affordable high-throughput monitoring phenotyping techniques key to improving maize cultivation under low-N fertilization. In this study several vegetation indices (VIs) derived from Red-Green-Blue (RGB) digital images at the leaf canopy levels are proposed as low-cost tools for plant breeding fertilization management. They were compared with...
The combination of high-throughput transcript profiling and next-generation sequencing technologies is a prerequisite for genome-wide comprehensive transcriptome analysis. Our recent innovation deepSuperSAGE based on an advanced SuperSAGE protocol its with massively parallel pyrosequencing Roche's 454 platform. As demonstration the power this combination, we have chosen salt stress transcriptomes roots nodules third most important legume crop chickpea (Cicer arietinum L.). While our report...
In the crop breeding process, use of data collection methods that allow reliable assessment adaptation traits, faster and cheaper than those currently in use, can significantly improve resource efficiency by reducing selection cost contribute to increased genetic gain through improved efficiency. Current estimate growth (ground canopy cover) leaf senescence are essentially manual and/or visual scoring, therefore often subjective, time consuming, expensive. Aerial sensing technologies offer...
Monitoring of genetic gain in crop improvement programs is necessary to measure the efficiency program. Periodic measurement also allows new technologies incorporated into a program be quantified. Genetic within International Maize and Wheat Improvement Centre (CIMMYT) breeding for eastern southern Africa were estimated using time series maize ( Zea mays L.) hybrids. A total 67 best‐performing hybrids from regional trials 2000 2010 selected form an era panel evaluated 32 eight locations...
Low soil fertility is one of the factors most limiting agricultural production, with phosphorus deficiency being among main factors, particularly in developing countries. To deal such environmental constraints, remote sensing measurements can be used to rapidly assess crop performance and phenotype a large number plots rapid cost-effective way. We evaluated set indices derived from Red-Green-Blue (RGB) images multispectral (visible infrared) data as phenotypic traits monitoring tools for...
Water deficit is the main yield-limiting factor across Asian and African semiarid tropics a basic consideration when developing crop cultivars for water-limited conditions to ensure that water demand matches season supply. Conventional breeding has contributed development of varieties are better adapted stress, such as early maturing match supply then escape terminal stress. However, an optimisation this possible. Also, further progress in cope with stress hampered by typically large...
Climate change and population growth pose great challenges to the food security of millions people who grow maize in already fragile agricultural systems tropical environments. There is an urgent need for varieties that are both drought heat tolerant given prevailing stress levels many environments, which set exacerbate with climate change. In this study, crop simulation model (CERES-Maize) was used quantify impact on potential benefits incorporating tolerance into commonly grown (benchmark)...
Maize is the most cultivated cereal in Africa terms of land area and production, but low soil nitrogen availability often constrains yields. Developing new maize varieties with high reliable yields using traditional crop breeding techniques field conditions can be slow costly. Remote sensing has become an important tool modernization field-based high-throughput plant phenotyping (HTPP), providing faster gains towards improvement yield potential adaptation to abiotic biotic limiting...
Genetic gain estimation in a breeding program provides an opportunity to monitor efficiency and genetic progress over specific period. The present study was conducted (i) assess the gains grain yield of early maturing maize hybrids developed by International Maize Wheat Improvement Center (CIMMYT) Southern African during period 2000–2018 (ii) identify key agronomic traits contributing under various management conditions. Seventy-two CIMMYT three commercial checks were assessed stress...
As water availability is critical for reproduction, terminal drought tolerance may involve water-saving traits. Experiments were undertaken under different vapour pressure deficit (VPD) and regimes (water stress (WS) well watered (WW)) to test genotypic differences trait relationships in the fraction of transpirable soil (FTSW) at which transpiration declines, canopy conductance (proxied by rate (TR, g H2Ocm-2h-1)), temperature depression (CTD, °C), efficiency (TE, gkg-1) growth parameters,...
Legumes are mostly grown rainfed and exposed to various types of drought ranging from terminal intermittent drought. The objective this study was compare the root anatomy six major legume crops in relation their adaptation strategies. Plants chickpea (Cicer arietinum L.), groundnut (Arachis hypogaea pigeonpea (Cajanus cajan [L.] Millsp.), cowpea (Vigna unguiculata L. walp.), soybean (Glycine max Merr.) common bean (Phaseolus vulgaris L.) were along with pearl millet (Pennisetum glaucum R....
Open‐pollinated varieties (OPVs) still represent a significant proportion of the maize ( Zea mays L.) seed system in many countries sub‐Saharan Africa. The International Maize and Wheat Improvement Centre (CIMMYT) has been breeding improved for stress‐prone environments experienced by most smallholder farmers eastern southern Africa over 30 yr. Hybrid is now major focus CIMMYT pipeline. However, OPVs are generated within hybrid This first study to document genetic gain grain yield under both...
The reproductive phase of chickpea (Cicer arietinum L.) is more sensitive to water deficits than the vegetative phase. characteristics that confer drought tolerance genotypes at stage are not well understood; especially which responsible for differences in seed yield under stress. In two consecutive years, 10 with contrasting yields terminal stress field were exposed a gradual, but similar, glasshouse. Flower number, flower + pod abortion percentage, weight, yield, 100-seed weight (seed...
Abstract Drought stress is a major constraint on cowpea productivity, since the crop grown under warm conditions sandy soils having low water‐holding capacity. For enhanced performance of crops facing terminal drought stress, like cowpea, water‐saving strategies are crucial. In this work, growth and transpiration rate (TR) 40 genotypes with contrasting response to were measured well‐watered across different vapour pressure deficits (VPD) investigate whether tolerant sensitive differ in their...