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Megagametogenesis and embryology of the pecan (Carya illinoensis)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: T.K. Haulik --- , Republic of South Africa L.C. Holtzhausen --- Department of Horticultural Science, Republic of South AfricaA timetable is presented for megasporogenesis, megagametogenesis, embryo and endosperm development of the pecan [Carya illinoensis (Wang.) K.Koch] under Transvaal Middleveld conditions. Differences between seasons and cultivars were minimal. The fertilized endosperm nucleus was observed about 5 to 7 days... -
A century of fish research in South African estuaries
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AK Whitfield --- , South AfricaThe history of South African estuarine ichthyology from 1910–2010 is reviewed. The first survey of fishes in a South African estuary was undertaken by Gilchrist in the early 1900s, followed by an extended period between the two world wars when... -
“A spade was called a spade … ”: Youth and intervention implementers’ perceptions of a resilience-based HIV-prevention intervention for youth in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Fungai Mbengo --- Edith Cowan University, Australia Esther Adama --- Edith Cowan University, Australia Amanda Towell-Barnard --- Edith Cowan University, Australia Maggie Zgambo --- Edith Cowan University, AustraliaThe youth (15–24 years old) in South Africa remain at high risk of HIV infection despite varied efforts to control the disease. An understanding of the perspectives of relevant stakeholders of HIV-prevention interventions targeting the youth is important to guide...