A5000646765- Plant Stress Responses and Tolerance
- Potato Plant Research
- Agronomic Practices and Intercropping Systems
- Agricultural pest management studies
- Plant Physiology and Cultivation Studies
- Legume Nitrogen Fixing Symbiosis
- Agricultural Systems and Practices
- Rice Cultivation and Yield Improvement
- Advances in Cucurbitaceae Research
- Transgenic Plants and Applications
- Plant Micronutrient Interactions and Effects
- Crop Yield and Soil Fertility
- Plant nutrient uptake and metabolism
- Agricultural Innovations and Practices
- Plant responses to water stress
- Climate change impacts on agriculture
- Plant responses to elevated CO2
- Photosynthetic Processes and Mechanisms
- Genetically Modified Organisms Research
- Plant Parasitism and Resistance
- Agriculture, Land Use, Rural Development
- CRISPR and Genetic Engineering
- Plant Genetic and Mutation Studies
- Biodiesel Production and Applications
- Growth and nutrition in plants
Botswana University of Agriculture and Natural Resources
2017-2024
University of Botswana
2017-2024
South African Weather Service
2018
Southern African Science Service Centre for Climate Change and Adaptive Land Management
2018
Universität Hamburg
2018
Virginia Tech
2009-2014
University of Arkansas at Fayetteville
2012
Abstract Drought stress affects cereals especially during the reproductive stage. The maize (Zea mays) drought transcriptome was studied using RNA-Seq analysis to compare drought-treated and well-watered fertilized ovary basal leaf meristem tissue. More drought-responsive genes responded in compared with meristem. Gene Ontology enrichment revealed a massive decrease transcript abundance of cell division cycle drought-stressed only. Among categories related carbohydrate metabolism, changes...
Abstract Plants capture solar energy and atmospheric carbon dioxide (CO 2 ) through photosynthesis, which is the primary component of crop yield, needs to be increased considerably meet growing global demand for food. Environmental stresses, are increasing with climate change, adversely affect photosynthetic metabolism (PCM) limit yield cereals such as rice ( Oryza sativa that feeds half world. To study regulation we developed a gene regulatory network identified transcription factor HYR...
Drought-tolerant plants have become a convenient model to study the mechanisms underlying drought tolerance in order improve susceptible domesticated relatives. Various studies shown that local landraces possess superior qualities help them survive harsh environmental conditions. One of key helps with crops is timely stomatal regulation. In this study, physiological, morphological, and molecular responses three drought-tolerant (Clm-01–03) hybrid (Clm-04) watermelons were evaluated under...
Cold stress causes substantial losses in global agricultural productivity. When exposed to cold stress, plants usually exhibit a variety of cold-induced physiological, biochemical, and molecular responses. Safflower is one the oldest, marginalized, neglected domesticated multipurpose oilseed crops which uniquely affected by at different growth stages. Because lack systematic research on signalling pathways gene regulatory networks, underlying biochemical mechanisms signal transduction...
• In this study, physiological responses of drought tolerant wild watermelon and susceptible cultivar were evaluated in both natural artificial environments. Exposure to stress, CO2 assimilation showed a sharper decline field grown crops as compared controlled environment response water deficit. The relationship NPQ protection against was also expressed the regression analysis where higher significant correlation observed for non-significant observation cultivated watermelon. A GxE that...
In Botswana, approximately 40% of the population live in rural areas and derive most their livelihood from agriculture by keeping livestock practising arable farming. Due to nature farming practises crops are exposed diseases environmental stresses. These challenges offer opportunities for application biotechnology develop adaptable materials country's environment. On other hand, perceived risk genetically modified organisms (GMOs) has dimmed promise technology its agriculture. This calls a...
The low inherent soil fertility, especially nitrogen (N) constrains arable agriculture in Botswana. Nitrogen is usually added to through inorganic fertilizer application. In this study, biological fixation by legumes explored as an alternative source of N. objectives study were measure levels N2 grain such cowpea, Bambara groundnut and farmers' fields well estimated indigenous herbaceous growing the Okavango Delta. Four flowering plants per species sampled from panhandle part Delta Tswapong...
Low yield of staple crops such as maize sorghum, pearl millet, and legumes in southern Africa poses a threat to food security, especially the semi-arid regions Botswana.The low crop productivity is caused by pests, fertility, soil moisture, high temperatures possibly resulting from climate change.On-farm measurements N 2 fi xation were done groundnut Bambara groundnut.Bacteria isolated their root nodules assessed inoculant for cereals under greenhouse condi-
Jatropha curcas L. is an undomesticated plant species that has recently received great attention for its utilization in biofuel production many countries including Botswana. The experiment investigated 30 J. accessions, and the results revealed high significant differences (P<0.01) among accessions peduncle length, number of seed per fruit, length fruit stalk, width, weight, leaf petiole total flower cluster, female male cluster. qualitative characters substantial amount variability except...
Drought-tolerant plants have become a convenient model to study the mechanisms underlying drought tolerance improve susceptible domesticated relatives. Various studies shown that wild watermelon possess superior qualities aid its survival in harsh environmental conditions. One of key aids crop has been noted as timely stomatal regulation. In this study, physiological, morphological and molecular responses drought-tolerant (wild watermelon) four other watermelons genotypes were evaluated...
Climate change models predict that most parts of southern Africa including Botswana and Namibia will experience severe water stress temperature increases as a result climate change.Wild drought-tolerant nitrogen-fi xing plants with heat-tolerant bacterial symbionts might be source for mitigation, nutrient-rich grazing grounds, soil fertility.Herbaceous legumes may developed into forage are resilient to eff ects.Therefore, the purpose study was assess diversity wild herbaceous in...
Abstract In many African countries, a high proportion of the population resides in rural areas and derives their incomes mainly from agriculture. This notwithstanding, there is growing evidence that nonfarm employment sources are increasingly becoming important among population. Using Botswana's household survey data, this paper examines relative contributions implications agriculture to incomes. Contrary popular held view most households derive income agriculture, findings analysis clearly...
Water shortages as a result of changes in rainfall patterns and increases temperatures are associated with climate change.Rising evaporation rates exacerbate water scarcity problems primarily aff ecting dry-land crop production systems southern Africa.Thus, the search for drought-tolerant varieties becomes necessary to mitigate change achieve food security region.Fifty maize germplasm accessions obtained from Zambian gene bank were characterized at Mount Makulu Research Station Zambia...