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Manipulation of acrotony in one-year-old apple shoots
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: N.C. Cook --- Department of Horticultural Science, Republic of South Africa K. Verhaegen --- , Belgium J. Keulemans --- , Belgium G. Jacobs --- Department of Horticultural Science, Republic of South AfricaUnbranched rooted layers of the rootstock Mailing 9 (M.9 clone Nie 29) ≈600 mm long were treated twice in autumn (4 and 13 October 1995) in the stoolbed as follows: a) non-treated control; b) the distal 300 mm of the... -
Kudu foraging behaviour: influenced by animal density?
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: C van der WaalIn deciduous savanna a marked decline in browse availability characterises the late dry season and apparently regulates populations of large browser species such as kudu. The dry season utilisation patterns of two woody species, Acacia tortilis and Boscia albitrunca, in... -
The logistic model-generated carrying capacities, maximum sustained off-take rates and optimal stocking rates for Kenya's commercial ranches
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: JT Njoka PID KinyuaThis paper deals with the derivation of logistic models for cattle, sheep and goats in a commercial ranching system in Machakos District, Kenya, a savannah ecosystem with average annual rainfall of 589.3 ± 159.3mm and an area of 10 117ha... -
Boulders or urchins? Selecting seeding sites for juvenile Haliotis midae along the Namaqualand coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SWP de WaalThe extent to which the relationship between juvenile abalone Haliotis midae and sea urchins Parechinus angulosus is induced by their physical habitat along the Namaqualand coast of South Africa was investigated. Correlation analyses between the proportion of abalone utilising sea... -
Seasonal energy extraction patterns by agropastoral herds in semiarid south-eastern Kenya
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: MM Nyangito --- Department of Land Resource Management and Agricultural Technology, Kenya NKR Musimba --- Department of Land Resource Management and Agricultural Technology, Kenya DM Nyariki --- Department of Land Resource Management and Agricultural Technology, KenyaPrimary energy extraction patterns by livestock under agropastoralism and ranching were investigated by the bite count method in semiarid south-eastern Kenya. Sward biomass for optimal energy intake by cattle was derived using intake-digestibility constraint curves and realised livestock productivity from... -
Sustainable intensification in rangelands of the southernmost region of Chile
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Raúl J Lira Fernandez --- Instituto de Investigaciones Agropecuarias, Centro Regional de Investigación Kampenaike, Chile Andres F Cibils --- Livestock, Forage and Pasture Management Research Unit, USDA ARS OCPARC, USARangeland-based sheep ranching has shaped the agricultural economy of Chile’s southernmost grasslands for over a century and a half. Ranching systems in the region, established in the late 1800s, transitioned from large European corporate enterprises, common until the mid-20th century,...