Browsing Faculty of Natural and Agricultural Sciences by Title
Now showing items 1428-1447 of 4818
-
Effects of Bt maize on agrotis segetum (Lepidoptera: Noctuidae): A pest of maize seedlings
(Entomological Society of America, 2010) -
Effects of Cry1Ab transgenic maize on lifecycle and biomarker responses of the earthworm, Eisenia Andrei
(MDPI, 2012)A 28-day study was conducted to determine the effects of the Bacillus thuringiensis Cry1Ab toxin on the earthworm Eisenia andrei. Previously, investigations have been limited to life-cycle level effects of this protein ... -
The effects of cultivar and prophylactic fungicide spray for leaf diseases on colonisation of maize ears by fumonisin producing Fusarium spp. and fumonisin synthesis in South Africa
(Elsevier, 2016)Fumonisins are mycotoxins produced primarily by Fusarium verticillioides and Fusarium proliferatum on maize. These are secondary, carcinogenic metabolites and have been reported on maize worldwide. Field trials were conducted ... -
Effects of dieatry onion (Allium cepa L.) in a rodent model of high-fat diet streptozotocin-induced diabetes
(Karger, 2008)Background/Aims: The present study was conducted to investigate the effects of two dietary doses of freeze-dried onion powder on diabetes-related symptoms in a high-fat (HF) diet streptozotocin (STZ)-induced diabetes rat ... -
The effects of different gold mine tailings on growth, reproduction and avoidance-behaviour of earthworms
(Taylor & Francis, 2020)The mining industry plays a key role in the economic development of South Africa as one of the largest exporters of valuable resources, such as gold, platinum group metals and other metals and minerals. Unfortunately, ... -
Effects of different soil ameliorants on Karee trees (Searsia Lancea) growing on mine tailings dump soil – Part I: Pot trials
(Taylor & Francis, 2012)Rehabilitation of mine tailings dams is often a challenge due to a lack of nutrients and a poor humus reservoir prevailing in tailings soils. This is especially true for establishing longer lived species such as trees. For ... -
The effects of EBL inhomogeneity on the gamma-gamma absorption of VHE gamma-rays
(HEASA, 2016)Very High Energy Gamma Rays (VHE; more than 100 GeV) from Cosmological Gamma Ray Sources such as blazars can be absorbed by the Extragalactic Background light (EBL), which leads to a high-energy cut-off in blazar spectral ... -
The effects of edaphic and climatic factors on secondary lichen chemistry: a case study using saxicolous lichens
(MDPI, 2019)Diversity of secondary lichen metabolites and their relationship to substrate and environmental parameters were studied in saxicolous lichens in the Middle and South Urals of Russia. Atranorin, usnic acid, gyrophoric acid, ... -
Effects of Endophyte Colonization of Vicia faba (Fabaceae) Plants on the Life–History of Leafminer Parasitoids Phaedrotoma scabriventris (Hymenoptera: Braconidae) and Diglyphus isaea (Hymenoptera: Eulophidae)
(Public Library of Science, 2014)Effects of the fungal endophytes Beauveria bassiana (isolates ICIPE 279, G1LU3, S4SU1) and Hypocrea lixii (isolate F3ST1) on the life-history of Phaedrotoma scabriventris and Diglyphus isaea, parasitoids of the pea leafminer ... -
Effects of Entomopathogenic fungi and Bacillus thuringiensis‐based biopesticides on Spoladea recurvalis (Lepidoptera: Crambidae)
(Wiley, 2018)Spoladea recurvalis (Fabricius) is one of the most devastating pests of amaranths caus- ing severe yield losses of 60%–100% to the crop. Unfortunately use of chemical pes- ticides is the most common control strategy that ... -
The effects of environment and ontogeny on the skin microbiome of two Stegastes damselfishes (Pomacentridae) from the eastern Caribbean Sea
(Springer, 2020)Damselfishes of the genus Stegastes are some of the most abundant fish inhabiting shallow reef habitats. Although Stegastes play an important role in promoting primary production in reef ecosystems, their territories are ... -
Effects of exercise on alterations in redox homeostasis in elite male and female endurance athletes using a clinical point-of-care test
(Canadian Science Publishing, 2016)Exercise causes alterations in redox homeostasis (ARH). Measuring ARH in elite athletes may aid in the identification of training tolerance, fatigued states, and underperformance. To the best of our knowledge, no studies ... -
Effects of host injury on susceptibility of marine reef fishes to ectoparasitic gnathiid isopods
(Springer, 2018)The importance of the role that parasites play in ecological communities is becoming increasingly apparent. However much about their impact on hosts and thus populations and communities remains poorly understood. A common ... -
Effects of initial nematode population density and water regime on resistance and tolerance to the rice root-knot nematode Meloidogyne graminicola in African and Asian rice genotypes
(Taylor & Francis, 2017)The rice root-knot nematode (RKN), Meloidogyne graminicola, is an important pathogen affecting rice production in South and Southeast Asia. Efficacy of resistance and tolerance in selected M. graminicola-resistant African ... -
Effects of iron supplementation on dominant bacterial groups in the gut, faecal SCFA and gut inflammation: a randomised, placebo-controlled intervention trial in South African children
(Cambridge University Press, 2014)Fe supplementation is a common strategy to correct Fe-deficiency anaemia in children; however, it may modify the gut microbiota and increase the risk for enteropathogenic infection. In the present study, we studied the ... -
Effects of Lactobacillus formosensis S215T and Lactobacillus buchneri on quality and in vitro ruminal biological activity of condensed tannins in sweet potato vines silage
(Wiley, 2016)Aims: This study investigated the influence of two microbial inoculants; Lactobacillus formosensis and Lactobacillus buchneri on fermentation quality, chemical composition, aerobic stability and in vitro ruminal biological ... -
Effects of livelihood activities on the households' food security in the Ogbomoso south local government area of Oyo State, Nigeria
(Kamla-Raj, 2016)This study examines the effects of livelihood activities on the households' food security in the Ogbomoso South Local Government Area of Oyo State. The study used primary data, which was obtained with the aid of structured ... -
Effects of molasses levels and growing conditions on nutritive value and fermentation quality of Opuntia cladodes silage
(Elewa Biosciences, 2016)The spineless Opuntia ficus-indica fruit (Prickly pear) industry in South Africa has increased in recent years and large quantities of cladodes are produced as a feed source for livestock. The objective of the study was ... -
Effects of montmorency tart cherry (L. Prunus Cerasus) consumption on nitric oxide biomarkers and exercise performance
(Wiley, 2018)The purpose of this study was to investigate the effects of Montmorency tart cherry juice (MC) on nitric oxide (NO) biomarkers, vascular function, and exercise performance. In a randomized, double-blind, placebo ... -
Effects of Montmorency tart cherry (Prunus Cerasus L.) consumption on vascular function in men with early hypertension
(Amer Soc Nutrition, 2016)Background: Tart cherries contain numerous polyphenolic compounds that could potentially improve endothelial function and reduce cardiovascular disease risk. Objective: We sought to examine the acute effects of ...