- Postharvest Quality and Shelf Life Management
- Photosynthetic Processes and Mechanisms
- Insect Pest Control Strategies
- Potato Plant Research
- Plant Physiology and Cultivation Studies
- Banana Cultivation and Research
- Insect behavior and control techniques
- Light effects on plants
- Spectroscopy and Quantum Chemical Studies
- Plant Stress Responses and Tolerance
- Photoreceptor and optogenetics research
- Organic Food and Agriculture
- Plant Disease Management Techniques
- Phytochemicals and Antioxidant Activities
- Date Palm Research Studies
- Plant responses to elevated CO2
- Plant Pathogens and Fungal Diseases
- Antioxidant Activity and Oxidative Stress
- Insect-Plant Interactions and Control
- Growth and nutrition in plants
- Agronomic Practices and Intercropping Systems
- Food Waste Reduction and Sustainability
- Horticultural and Viticultural Research
- Crop Yield and Soil Fertility
- Sensory Analysis and Statistical Methods
University of Greenwich
2013-2024
Natural Resources Institute
2008-2024
Commonwealth Scientific and Industrial Research Organisation
2002
California Maritime Academy
1998
Centro Internacional de Mejoramiento de Maíz Y Trigo
1993
University of Sheffield
1989-1992
Edge Hill University
1990
Gray's Inn
1983
Grain yields of eight representative semidwarf spring wheat ( Triticum aestivum L.) cultivars released in northwest Mexico between 1962 and 1988 have increased linearly across years as measured this region during 6 yr under favorable management irrigation. To understand the physiological basis progress possibly assist future selection for grain yield, leaf traits were determined 3 same study. Stomatal conductance g s ), maximum photosynthetic rate (A max , canopy temperature depression...
A new hypothesis is presented to explain the major molecular process that regulates efficiency of light harvesting by chloroplast membranes. It proposed in excess decrease thylakoid lumen pH causes an increase aggregation complexes photosystem II resulting formation efficient pathway for non‐radiative dissipation excitation energy. The potentiated conversion violaxanthin zeaxanthin. This based upon (i) similarity between spectroscopic changes associated with energy and those...
The extent of energy‐dependent quenching chlorophyll fluorescence in broken spinach chloroplasts has been quantitatively related to the size thylakoid proton gradient as measured by 9‐aminoacridine titration at constant irradiance with uncoupler nigericin or change irradiance. It was found that prepared from leaves had pre‐illuminated strong light for 30 min showed a lower than dark‐adapted leaves. Measurement carotenoid composition thylakoids treatment raised ratio zeaxanthin: violaxanthin....
Abstract The effect of a range temperatures (15–42°C) and relative humidities (40–80%) on growth populations Liposcelis entomophilus (Enderlein), bostrychophilus Badonnel paetus Pearman infesting rice-based medium was investigated. These species are often found stored cereal grains in the tropics. Both L. bred most rapidly at 30°C, 70–80% r.h. Neither survived 36°C above. In contrast, 33–36°C, 70% r.h., able to breed 42°C, 80% No below 60%. As well as consuming mould growth, spp. also caused...
The fresh produce industry is constantly growing as a result of increasing consumer demand. Food quality and safety management are still major issues for the supply chain. use ozone has been identified feasible solution to reduce microorganisms present in food, this way extending shelf-life produce. A number factors that may affect efficiency treatment have identified, e.g. microbial populations, concentration time exposure, type produce, temperature, relative humidity packaging material,...
Sweetpotato weevils ( Cylas spp.) constitute a major constraint upon sweetpotato production and utilization world-wide. Attempts to breed for resistance spp. have had limited success. However, there are reports of variation in the susceptibility weevil attack field among cultivars East Africa. Field trials were conducted at two sites (Ukiriguru Kibaha) Tanzania one site (Serere) Uganda determine extent which presently available Africa consistently differ their infestation by identify plant...
Lack of good-quality planting materials has been identified as the most severe problem militating against increased agricultural productivity in sub-Saharan Africa (SSA) and beyond. However, investment research efforts resources addressing this menace will only be feasible worthwhile if attendant economic gains are considerable. As a way investigating viability yam investment, initiated to address problems confronting eight countries SSA beyond: Nigeria, Ghana, Benin, Togo, Côte d’Ivoire,...
Abstract Sweetpotato is an important staple crop in East Africa with great potential for introducing improved cultivars, but little known about which sensory characteristics are desirable. Over a 2 year period, 600 consumers were interviewed at three locations (urban and rural) the Lake Zone of Tanzania their preference 14 locally available sweetpotato cultivars cooked form was evaluated. A simple questionnaire based on first‐choice used followed by socio‐economic questions. trained panel...