Now showing items 1-10 of 53
The use of Cape gannets Morus capensis in management of the purse-seine fishery of the western Cape.
A large purse-seine fishery is located in the highly productive southern Benguela System off the western Cape. Purseseine fisheries have been prone to collapse worldwide and management practices have met with limited ...
Towards improved livestock production off sweet grassveld.
No abstract available.
An assessment of Coastcross II Bermudagrass and kikuyu for growing out young beef animals.
The immediate aim of this study was to relate herbage availability, liveweight gain and stocking rate to one another under continuous and rotational grazing so that management recommendations could be formulated for ...
A study of the genera Justicia L. and Siphonoglossa oerst. (Acanthaceae) in southern Africa
A comprehensive revision of the genus Justicia L and, the closely related genera Siphonoglossa Oersted and Aulojusticia Lindau in southern Africa was undertaken as part of the Flora of Southern Africa project. Taxonomic ...
The biosynthesis and production of hypoxoside in Hypoxis hemerocallidea Fisch. and Mey. in vivo and in vitro.
Hypoxoside, a phenolic diglucoside, with a diarylpentane-type structure, is thought to be the medicinally active constituent of corm extracts of Hypoxis hemerocallidea Fisch. & Mey. which are reputed to alleviate the ...
Cytokinins in Ecklonia maxima and the effect of seaweed concentrate on plant growth.
The endogenous cytokinin levels in the brown alga Ecklonia maxima (OSBECK) PAPENF., and the effect of applications of the seaweed concentrate (Kelpak 66) prepared from this alga, on the growth and yield of various ...
A revision of the genus Scleria Bergius (Cyperaceae) in Southern Africa.
The genus Scleria Bergius (Cyperaceae) in Southern Africa is critically examined, and the generic limits reviewed The taxonomic position of the genus in the family is examined. Diagnosis of the tribe Sclerieae is altered ...
The regeneration of Hypoxis rooperi S. Moore and production of hypoxoside in vitro.
Against the background of the increasing pharmaceutical importance of members of the genus Hypoxis L., methods for propagating these plants and for producing hypoxoside (the believed active compound found within Hypoxis ...
The role of Potamogeton crispus L. in the Pongolo River floodplain ecosystem.
1. Aquatic macrophytes generally dominate energy and nutrient transfers in wetland ecosystems. They provide a diverse habitat for other organisms but each species or life-form, has a different role in determining ecosystem ...
Hormonal regulation of tuberization of cassava (Manihot esculenta Crantz)
The relative distribution of dry matter over shoot and tuberous roots is an important factor in determining the yield of cassava. Under sub-tropical conditions the dry matter distribution pattern is not always efficient. ...