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Browsing Journal Articles by Cluster "Advanced Agriculture & Food"

Now showing items 1-18 of 18

Aboveground biomass density models for NASA’s Global Ecosystem Dynamics Investigation (GEDI) lidar mission

Author: Duncanson, L ; Kellner, JR ; Armston, J ; Dubayah, R ; Minora, DM ; Hancock, S ; Healey, SP ; Patterson, PL ; Main, Russell S ; Naidoo, Laven Date: Mar 2022 NASA’s Global Ecosystem Dynamics Investigation (GEDI) is collecting spaceborne full waveform lidar data with a primary science goal of producing accurate estimates of forest aboveground biomass density (AGBD). This paper presents the development ... Read more
Dammarane-type triterpenoids with anti-cancer activity from the leaves of Cleome gynandra

Author: Mzondo, Buntubonke ; Dlamini, Nomusa ; Malan, FP ; Labuschagne, Philip W ; Bovilla, VR ; Madhunapantula, SV ; Maharaj, V Date: Jun 2021 Three dammarane-type triterpernoids including two new ones, cleogynones A and B (1 and 2), were isolated from the leaves of Cleome gynandra. The structures of the new triterpenoids were elucidated by spectroscopic data analysis and confirmed ... Read more
Determining the wetland-dryland boundary of depressions using littoral gradient analysis of soil edaphic factors

Author: Nondlazi, Basanda X ; Cho, Moses A ; Van Deventer, Heidi ; Sieben, EJ Date: Aug 2021 Depressional wetlands are highly vulnerable to changes in land surface temperature and rainfall but little is known about their responses to future climate change. This study assessed the variation in edaphic factors between wetlands and along ... Read more
Estimating South African maize biomass using integrated high-resolution UAV and sentinel 1 and 2 datasets

Author: Naidoo, Laven ; Main, Russell S ; Cho, Moses A ; Madonsela, Sabelo ; Majozi, Nobuhle, P Date: Jul 2021 Sentinel-1 and Sentinel-2 have provided consistent hyper-temporal information (5–7 days or earlier) at high spatial resolutions (10m) on biophysical composition, structural and physiological conditions of crops in a variety of environments. ... Read more
Ethnomedicinal and phytochemical properties of sesquiterpene lactones from Dicoma (Asteraceae) and their anticancer pharmacological activities: A review

Author: Mangisa, Mandisa ; Peter, Xolani K ; Khosa, Mbokota ; Fouche, Gerda ; Nthambeleni, Rudzani ; Senabe, Jeremiah V ; Tarirai, C ; Tembu, VJ Date: Sep 2021 Dicoma species belonging to the Asteraceae family are commonly utilized as traditional medicine in Southern Africa. Dicoma anomala, Dicoma capensis, Dicoma schinzii and Dicoma zheyeri are the most common ethnomedicinal plant species used in ... Read more
Geospatial analysis of meteorological drought impact on Southern Africa biomes

Author: Cho, Moses A ; Chirwa, PW ; Marumbwa, FM Date: Jan 2021 Within Southern African biomes, droughts are recurrent with devastating impacts on ecological, economic, and human wellbeing. In this context, understanding the drought impact on vegetation is of extreme importance. However, information on ... Read more
In vitro study on efficacy of PHELA, an African traditional drug against SARS-CoV-2

Author: Matsabisa, MG ; Alexandre, Kabamba B ; Ibeji, CU ; Tripathy, S ; Erukainure, OL ; Malatji, Kanyane ; Chauke, Sipho H ; Okole, Blessed N ; Chabalal, HB Date: Jun 2022 In 2019, coronavirus has made the third apparition in the form of SARS-CoV-2, a novel strain of coronavirus that is extremely pathogenic and it uses the same receptor as SARS-CoV, the angiotensin converting enzyme 2 (ACE2). However, more than ... Read more
Indigenous knowledge on the uses, sustainability and conservation of African ginger (Siphonochilus aethiopicus) among two communities in Mpumalanga province, South Africa

Author: Seile, BP ; Bareetseng, Andries S ; Koitsiwe, MT ; Aremu, AO Date: Mar 2022 Harvesting of medicinal plants in the wild has an impact on sustainability of medicinal plants, which leads to the need for intervention in terms of conservation strategies. Siphonochilus aethiopicus, commonly known as African ginger or wild ... Read more
Investigating the relationship between tree species diversity and landsat-8 spectral heterogeneity across multiple phenological stages

Author: Madonsela, Sabelo ; Cho, Moses A ; Ramoelo, Abel ; Mutanga, O Date: Jun 2021 The emergence of the spectral variation hypothesis (SVH) has gained widespread attention in the remote sensing community as a method for deriving biodiversity information from remotely sensed data. SVH states that spectral heterogeneity on ... Read more
Investigating the toxicity of compounds yielded by staphylococci on Vero cells

Author: Modimola, MS ; Green, E ; Njobeh, P ; Senabe, Jeremiah V ; Fouche, G ; McGaw, L ; Nkadimeng, SM ; Mathiba, Kgama ; Mthombeni, J Date: Oct 2022 Bacterial secondary metabolites play a major role in the alleviation of diseases; however, the cytotoxicity of other metabolites cannot be ignored as such metabolites could be detrimental to human cells. Three Staphylococci strains Staphylococcus ... Read more
Land tenure conflict and agribusiness development in sub-Saharan Africa

Author: Effossou, KA ; Cho, Moses A Date: Jun 2021 There is a growing demand of land by multinational commercial agribusinesses to meet the increasing demand for food in sub-Saharan Africa (SSA) and the export market. Land tenure system is identified as one of the factors stymieing the growth ... Read more
Predicting land degradation using Sentinel-2 and environmental variables in the Lepellane catchment of the Greater Sekhukhune District, South Africa

Author: Nzuza, P ; Ramoelo, Abel ; Odindi, J ; Mwenge Kahinda, Jean-Marc ; Madonsela, Sabelo Date: Sep 2020 Land degradation is defined as the reduction of biological and economic productivity, which impedes the capacity of the land to provide ecosystem services. There is a need to move towards near real-time monitoring of land degradation using ... Read more
A radar and LiDAR-based earth observation system for monitoring savanna woody structure in southern Africa

Author: Mathieu, Renaud ; Wessels, Konrad ; Main, Russell S ; Naidoo, Laven ; Van der Bergh, Frans ; Erasmus, Barend Date: Apr 2018 In southern Africa, landscapes are dominated by savannas, i.e., mixed tree-grass communities. These savannas are threatened by land clearing and degradation, as well as the densification of woody plants, a process known as bush encroachment. ... Read more
Spatio-temporal analysis of built-up impervious surface area and interplay with land surface temperature in Pretoria, South Africa

Author: Adeyemi, A ; Ramoelo, Abel ; Cho, Moses A ; Strydom, J Date: Sep 2021 Evaluating changes in built-up impervious surface area (ISA) to understand the urban heat island (UHI) extent is valuable for governments in major cities in developing countries experiencing rapid urbanization and industrialization. This work ... Read more
Spectral index to improve the extraction of built-up area from WorldView-2 imagery

Author: Adeyemi, A ; Ramoelo, Abel ; Cho, Moses A ; Masemola, C Date: Apr 2021 Globally, the unprecedented increase in population in many cities has led to rapid changes in urban landscape, which requires timely assessments and monitoring. Accurate determination of built-up information is vital for urban planning and ... Read more
Towards sustainable energy system options for improving energy access in Southern Africa

Author: Tazvinga, Tenerica ; Dzobo, O ; Mapako, Maxwell C Date: May 2020 Access to modern energy services is one of the pre-requisites to improved livelihood, yet the poor, particularly in developing countries, remain tied to unhealthy and inefficient traditional fuels. Renewable energy technologies are increasingly ... Read more
Tree species composition and diversity in Miombo woodlands between co-managed and government-managed regimes, Malawi

Author: Gondwe, MFK ; Geldenhuys, CJ ; Chirwa, PWC ; Assédé, ESP ; Cho, Moses A Date: Nov 2020 Comparative information on the composition and diversity in tree species associations in Miombo woodland is limited. This study assessed how tree species associations across forest reserves of Miombo woodland in Malawi varied in composition ... Read more
Use of herbal extract-based nanoemulsions for hair care application

Author: Okole, Blessed N ; Kesavan Pillai, Sreejarani ; Ndzotoyi, Phatheka, T ; Phasha, Vivey M Date: Mar 2022 Hair is considered an aspect of body appeal and its appearance is a gage of health in every culture. Natural hair products are becoming more in demand than synthetic products because they are considered safe and without severe side effects. ... Read more

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