Browsing Research Articles (Plant Production and Soil Science) by UP Author "Robbertse, P.J. (Petrus Johannes), 1932-"
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Browsing Research Articles (Plant Production and Soil Science) by UP Author "Robbertse, P.J. (Petrus Johannes), 1932-"
Now showing items 1-7 of 7
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Fotouo Makouate, Helene; Vorster, Barend Juan; Du Toit, Elsa Sophia; Robbertse, P.J. (Petrus Johannes), 1932- (Elsevier, 2020-03)There have been increased interest to propagate Moringa oleifera because of its multipurpose uses. However there are still no appropriate guidelines for long-term storage of Moringa seed because diverse results are reported ...
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Fotouo Makouate, Helene; Du Toit, Elsa Sophia; Robbertse, P.J. (Petrus Johannes), 1932- (Elsevier, 2016-06)Moringa seed oil is known as Ben oil. Recently research by several authors illustrated the potential use ofBen oil for biodiesel production. Oil quality is directly related to the physiological condition of the seedsfrom ...
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Robbertse, P.J. (Petrus Johannes), 1932-; Du Toit, Elsa Sophia; Cloete, Michele Olivia (Elsevier, 2010-10)Gender and the structure of the inflorescence and flowers of Pappea capensis (Sapindaceae) are investigated in a locality around Pretoria (22–27°S and 25–32°E). The trees flower over a long period (December to April) and ...
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Fotouo Makouate, Helene; Du Toit, Elsa Sophia; Robbertse, P.J. (Petrus Johannes), 1932- (Oxford University Press, 2015)Seed ageing during storage is one of the main causes of reduction in seed quality and this results in loss of vigour and failure to thrive. Finding appropriate storage conditions to ameliorate deterioration due to ageing ...
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Okumu, Martha Nelima; Robbertse, P.J. (Petrus Johannes), 1932-; Vorster, Barend Juan; Reinhardt, Carl Frederick (Charlie) (MDPI, 2022-10-24)Six Conyza bonariensis (L.) Cronquist populations were screened in a pot experiment at the University of Pretoria’s Hatfield experimental farm to evaluate and confirm the degree of glyphosate response. Resistance factors ...
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Kabeya, Kayembe P.; Robbertse, P.J. (Petrus Johannes), 1932-; Marais, D. (Diana); Steyn, J.M. (Joachim Marthinus), 1963- (Taylor and Francis and NISC (Pty) Ltd, 2017-06)Kenaf (Hibiscus cannabinus) provides high-quality fibre that is used in papermaking, building materials and absorbents. The study aims were to conduct a proper anatomical study of fibre development in kenaf stems, and to ...
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Fessehazion, M.K. (Melake Kessete); Marais, D. (Diana); Robbertse, P.J. (Petrus Johannes), 1932- (South African Society of Crop Production/ Soil Science Society of South Africa/ Southern African Weed Science Society/ Southern African Society for Horticultural Sciences, 2008)Predicting seedling emergence using standard and non-standard germination temperatures, standard accelerated ageing (AA) and saturated salt accelerated ageing (SSAA) tests, were investigated. Germinations were performed ...
Now showing items 1-7 of 7