Now showing items 1-6 of 6
The biochemical and cytokinin changes in the developing and germinating seeds of Podocarpus henkelli stapf.
A review of the literature revealed that there is a lack of depth in our knowledge of gymnospermous seeds with regard to the development and germination processes. The phytohormones, particularly the cytokinins have ...
Propagation of Romulea species.
Romulea is a genus with numerous attractive and endangered species with horticultural potential. This genus in the Iridaceae has its centre of diversity in the winter-rainfall zone of South Africa. This thesis uses ...
Conservation of select South African Disa Berg. species (Orchidaceae) through in vitro seed germination.
Disa comprises 163 species, 131 of which occur in South Africa (SA). The genus is distributed across winter- and summer-rainfall areas, but few species transverse both climatic regions. Species are therefore regarded as ...
Do herbivores facilitate seed germination and seedling recruitment of woody plants?.
Woody plant encroachment is a phenomenon whereby trees and shrubs invade grasslands or increase in an already wooded area, resulting in lower yields of herbaceous plants and a reduction in the carrying capacity of rangelands. ...
Investigations on the biological effects of smoke-water and smoke-derived compounds in agriculture and horticulture.
Abstract available in PDF file.
Seed dormancy and germination in Protea compacta R.Br. and Leucadendron daphnoides Meisn.
The germination responses of seed to a wide variety of treatments showed that both the pericarp and the embryo contribute to the dormant condition in Protea compacta. Germination can be improved to a greater or lesser ...