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Registration of cotton (Gossypium hirsutum L.) cultivars Letaba, NIK2 and OR19
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: H.G. van Heerden --- , Republic of South Africa W.H. van Staden --- , Republic of South Africa G.W. Schoeman --- , Republic of South Africa M.E. Stone --- , Republic of South Africa G. S.P. Vink --- , Republic of South AfricaLetaba, NIK2 and OR19 were released for commercial cultivation in the R.S.A. in 1989. Letaba has potential as a dryland cultivar in the Springbok Flats and northern Natal. NIK2 is intended for cultivation under irrigation in the same areas and... -
Open-top chambers to study air pollution impacts in South Africa. Part I: microclimate in open-top chambers
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: E Heyneke --- School of Environmental Science and Development, South Africa PR Smit --- School of Environmental Science and Development, South Africa L van Rensburg --- School of Environmental Science and Development, South Africa GHJ Krüger --- School of Environmental Science and Development, South AfricaSouth Africa's large industrial growth has created an obvious need to extend, improve and evaluate air pollution impacts on plants in order to assess present-day and future impacts of air pollutants on crop yields. In order to provide guidelines for... -
Evidence of AIDS mortality from an alternative source: A Swaziland case study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Alan Whiteside --- Health Economics and HIV/AIDS Research Division, South Africa Chris Desmond --- Health Economics and HIV/AIDS Research Division, South Africa John King --- , Swaziland Jane Tomlinson --- , Swaziland Conway Sithungo --- , SwazilandThis paper explores a way of measuring AIDS mortality in the absence of vital registration. It looks at the death notices in the major daily newspaper in Swaziland, The Times of Swaziland, and asks if these can be analysed to...