Now showing items 1-10 of 11
The development of protocols for the diagnosis and micropropagation of cold-tolerant Eucalyptus cultivars.
In South Africa, Eucalyptus trees are used for many processed wood products (e.g. paper) and in the mining industry. Priorities in Eucalyptus breeding programmes include selection of varieties that are fast growers, insect ...
The effect of elevated glutathione reductase and superoxide dismutase activities in stressed transgenic tobacco.
Life as we know it would be impossible in the absence of oxygen. However, too much oxygen can be toxic to the aerobic organisms which depend on it for their very existence. This apparent paradox arises as a result of ...
Aspects of the influence of temperature on the desiccation responses of seeds of Zizania palustris (Wild rice)
Seeds of wild rice (Zizania palustris var. interior) have been reported to show highest survival when dehydrated at 25 QC. It has also been reported that axis cells sustained least damage at this drying temperature. In ...
Aspects of seed propagation of commonly utilised medicinal trees of KwaZulu-Natal.
Due to over-exploitation of commonly-used medicinal plants, mainly from KwaZuluNatal, because of ever-increasing human population growth, many of the useful medicinal plants are becoming depleted in their natural habitats. ...
Aspects of the structure and functioning of the vegetation of the Hlatikulu Vlei.
Hlatikulu Vlei, situated in the foothills of the Natal Drakensberg, is one of the priority wetlands in KwaZulu-Natal, occupying an area of 733 Hectares. The importance of Hlatikulu Vlei lies in its functions to store ...
Molecular basis of anthocyanin production in callus and cell cultures of Oxalis reclinata.
Oxalis reclinata Jacq., is a dicotyledonous plant. O. reclinata belongs to the family Oxalidaceae. This plant produced callus which accumulated red coloured anthocyanin pigments when cultured in vitro. The levels of ...
Biochemical and ultrastructural changes associated with chilling injury in soybean seeds during imbibition.
Biochemical and ultrastructural changes associated with chilling injury (CI) in soybean seeds imbibed at 5°C and 25°C were investigated. Soybean seed germination appeared to be affected by chilling temperatures and initial ...
Patterns and rate of woody vegetation cluster development in a semi- arid savanna, Natal, South Africa.
No abstract available.
The role of overstorey proteoid shrubs in maintaining species richness in a southern Cape mountain fynbos community.
This study was conducted to determine if, and how, over storey proteoid shrubs affect the species richness of a southern Cape mountain fynbos community. Protea eximia, P. lorifolia and P. repens were the dominant ...
Physiological and gene expression responses to water stress in drought tolerant and drought sensitive maize cultivars.
Physiological characteristics of the response to water stress of two maize cultivars, the one drought resistant (PAN473) and the other drought sensitive (SR52), were compared. Mature plants were grown in one of two ...