Now showing items 11-16 of 16
Development and testing of a remote controlled oesophageal fistula valve for goats.
A remote control sampling technique was developed for the collection of oesophageal fistula samples from goats. Number and size of samples can be varied and collected throughout the day without disturbing the animal's ...
Regulation of nitrate reductase during in vitro differentiation of nicotiana tabacum L. var. samsun.
The commencement of in vitro differentiation is mediated by genetic changes that result in selective expression of genes and a shift in metabolism. The role of nitrate reductase, a key enzyme of nitrate assimilation, during ...
DNA restriction fragment lenth polymorphisms in the identification of clonal variants of eucalyptus.
The technique of restriction fragment length polymorphism (RFLP) analysis, of chloroplastic and genomic DNA, was investigated as a means of identifying eucalypt species and cultivars which are morphologically indistinguishable ...
Towards formalized adaptive management in succulent valley bushveld.
This study was designed to provide the means for implementing formal scientific vegetation management 1n the succulent valley bushveld of the eastern Cape, South Africa. Nowhere in the world has a detailed, ...
The evolution and socio-ecology of two populations of the Vlei Rat, Otomys irroratus.
This work investigated two important evolutionary processes - speciation and adaptive variation - in two chromosomally-distinct allopatric Natal Midlands populations of the vlei rat Otomys irroratus. The two populations, ...
Micropropagation and in vitro studies of Pinus patula Scheide et Deppe.
For the South African forestry industry, the patula pine (Pinus patula) is the most commercially important softwood species. A pine clonal programme has yet to be fully implemented in this country and at present much effort ...