Search Results - "du Plooy, C.P."
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The dual-purpose use of orange-fleshed sweet potato (Ipomoea batatas var. Bophelo) for improved nutritional food security
Published in Agricultural water management (20-05-2019)“…•Sweet potato leaves could provide almost the entire daily-recommended vitamin A intake to children aged 4–18 years.•Vine harvesting improved iron nutritional…”
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β-Carotene yield and productivity of orange-fleshed sweet potato (Ipomoea batatas L. Lam.) as influenced by irrigation and fertilizer application treatments
Published in Scientia horticulturae (13-07-2012)“…► An increase in irrigation increased root yield, but reduced β-carotene content. ► β-Carotene yield over the different water regimes ranged from 2.07 to…”
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Alternative method of optimizing yield of tomatoes in a closed hydroponic system
Published in Acta horticulturae (01-01-2013)“…A study was conducted in a shade-net structure to evaluate the effect of early decapitation combined with high density plantings on tomato yield and quality in…”
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Effect of plant density and harvesting method on yield components of hydroponically grown amaranth
Published in Acta horticulturae (01-05-2012)“…In spite of the high nutritional value and popularity of amaranth in South Africa, lack of information on the production of amaranth in soilless conditions is…”
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Effect of nitrogen fertilisation on the growth of Artemisia AFRA and its antimicrobial activity
Published in Acta horticulturae (01-01-2013)“…A rich heritage of floral biodiversity is found in developing countries such as South Africa. South Africa, a country with a strong history of traditional…”
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Research and technology transfer by the Agricultural Research Council to sustain the South African hydroponic industry
Published in Acta horticulturae (01-05-2012)“…The Agricultural Research Council, Vegetable and Ornamental Plant Institute (ARC-VOPI), developed an integrated programme to assist hydroponic vegetable…”
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Simulating the yield response of orange fleshed sweet potato ‘Isondlo' to water stress using the FAO AquaCrop model
Published in Acta horticulturae (01-01-2013)“…Research trials that evaluated response of orange fleshed sweet potato to three irrigation treatments were carried out on a sandy loam soil under a rain…”
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Comparative performance of tomato cultivars in soilless vs. In-soil production systems
Published in Acta horticulturae (01-01-2009)Get full text
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Nitrogen fertiliser requirements of the South African medicinal plant Leonotis leonurus used in traditional healing practices
Published in Acta horticulturae (01-01-2011)“…Leonotis leonurus is also known as wild dagga, lebake (Sotho, Tswana) or wilde dagga (Afrikaans). This plant with its attractive orange flowers can grow up to…”
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Can the leaf of Moringa oleifera Lam. be used as a substitute for the root as an antimicrobial, antidiabetic and antioxidant agent?
Published in South African journal of botany (01-03-2017)Get full text
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Estimating evapotranspiration and determining crop coefficients of irrigated sweet potato (Ipomoea batatas) grown in a semi-arid climate
Published in Agricultural water management (30-04-2020)“…An open-path eddy-covariance system containing energy balance sensors was installed in a 1.3 ha field to estimate ET of orange-fleshed sweet potato. The study…”
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Postharvest drying maintains phenolic, flavonoid and gallotannin content of some cultivated African leafy vegetables
Published in Scientia horticulturae (20-09-2019)“…•Amaranthus cruentus grown under drought conditions and shade dried retains better total phenolic, flavonoid and gallotannin content.•Corchorus olitorius grown…”
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Moisture stress on physiology and yield of some indigenous leafy vegetables under field conditions
Published in South African journal of botany (01-11-2019)“…South Africa is rich with a diverse range of leafy vegetables that are rich in nutrients. African leafy vegetables (ALVs) are limited in terms of their…”
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Evaluation of phytochemical properties and antioxidant activity of Opuntia ficus-indica
Published in South African journal of botany (01-03-2018)Get full text
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Biomass yield and chemical analysis of African nightshade (Solanum retroflexum Dunal) as affected by nitrogen management
Published in South African journal of botany (01-03-2016)Get full text
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Influence of organic and inorganic fertilizer on growth parameters of Artemisia afra Jacq ex Wild
Published in South African journal of botany (01-03-2016)Get full text
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Nutritional quality of selected African leafy vegetables cultivated under varying water regimes and different harvests
Published in South African journal of botany (01-11-2019)“…African leafy vegetables (ALVs) are considered rich in micronutrients and adapted to marginal production areas than their exotic counterparts. However,…”
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Volatile profiling of aromatic African ginger ( Siphonochilus aethiopicus ) in response to irrigation regimes and nitrogen levels
Published in Acta horticulturae (01-01-2019)Get full text
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Antimicrobial activity, cytotoxicity evaluation and heavy metal content of five commonly used South African herbal mixtures
Published in South African journal of botany (01-09-2017)“…Herbal mixtures are becoming highly used in South Africa to treat several ailments such as cough, diarrhoea, fever, sexually transmitted diseases, cancer and…”
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