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The importance of certain insects as pollinators of sunflower (Helianthus annuus L.)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.P. du Toit --- , Republic of South AfricaThis study reports the effects of Apis mellifera L. (honeybees), Astylus atromaculatus Blanchard (spotted maize beetles), Heliothis armigera Hübner (American bollworm larvae) and Musca domestica L. (house flies) on seed set in commercial sunflower. The pollination efficiency of these insects... -
Component dry masses and carbohydrate contents in honeybush I: Cyclopia genistoides
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J Wooldridge --- , South Africa ME Joubert --- , South Africa M Booyse --- , South AfricaCyclopia (honeybush), a new and largely unstudied South African horticultural crop, was investigated by carrying out a reconnaissance-level survey of C. genistoides (Cg) populations. Four-year average total dry mass (DM) in plantation-grown Cg cuttings and seedlings, and wild (veld) plants... -
Component dry masses and carbohydrate contents in honeybush II: Cyclopia subternata
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J Wooldridge --- Agricultural Research Council Infruitec-Nietvoorbij, South Africa ME Joubert --- Agricultural Research Council Infruitec-Nietvoorbij, South Africa M Booyse --- Agricultural Research Council Biometry Unit, South AfricaA four-year reconnaissance-level survey was carried out in a honeybush (Cyclopia subternata; Cs) population to obtain information concerning this new South African horticultural crop. Average total dry mass (DM) in Cs cuttings under plantation conditions was 2 481 g plant−1,... -
Effect of species, cutting position and exogenous rooting substances on rooting of honeybush (Cyclopia spp.) cuttings
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: MM Mbangcolo --- Department of Agronomy, South Africa EY Reinten --- Department of Agronomy, South Africa GA Agenbag --- Department of Agronomy, South AfricaEffect of the cutting position, terminal and subterminal, and rooting substance on the rooting of cuttings of two Cyclopia species (Cyclopia genistoides and C. intermedia) taken in winter, spring or summer was studied under controlled glasshouse conditions. Cuttings taken in... -
Technology and market access via contracts and cooperatives for smallholders: Evidence from honey producers in Ethiopia
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abebe Ejigu Alemu --- SARChI Chair in Social Policy, College of Graduate Studies, South AfricaSmallholders in developing countries are facing high transaction costs and difficulties in accessing technology to improve productivity. This paper aims at exploring how technology acquisition and market access have driven smallholder honey farmers to contract participation or cooperative engagement by... -
Efficacy and profitability of weed management systems for honeybush in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Rayganah Rhoda --- , South Africa Cecilia Bester --- , South Africa Mlamuli Motsa --- , Eswatini Marlise Joubert --- , South Africa Gugu Tshabalala --- , South Africa Candice-Lee Lyons --- , South AfricaWeeds reduce crop productivity through competion for nutrients, water, light and space, and impact negatively on commercial crops. Honeybush tea (Cyclopia spp.) is an industry mainly focused on the organic cultivation of tea, using mechanical weeding control methods. To date,... -
Cultivation of honeybush (Cyclopia spp.) in neo-colonial and multispecies landscapes of South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Sthembile Ndwandwe --- University of Cape Town, South Africa Roderick Juba --- , South Africa Matthew Sephton --- , South AfricaThe indigenous wild plants of Southern Africa are intertwined with human cultures, histories and livelihoods. By focusing on commercial cultivation of a wild plant, honeybush (Cyclopia spp.), an indigenous plant that is endemic to parts of South Africa, we discuss...