Now showing items 231-239 of 239
The plant ecology of seasonally flooded areas of the Pongolo River Floodplain, with particular reference to Cynodon dactylon (L.) Pers.
The impounding of the waters of the Pongolo river, upstream of its floodplain on the Mocambique coastal plain, may adversely affect the functioning of the floodplain system. A multidisciplinary study of the functioning ...
The regulation of phytoplankton productivity in a shallow, turbid, oligotrophic lake.
Aspects of the physical and chemical environment likely to influence phytoplankton productivity were investigated in Lake Midmar, a shallow (mean depth 11.4m), oligotrophic impoundment, over a three year period to ...
Seedling establishment of Themeda triandra Forssk. in the montane grasslands of Natal.
Soil erosion and vegetation destruction have reached serious proportions in disturbed areas of the montane grasslands of the Natal Drakensberg. Little is known of the inherent ability of indigenous grasses to produce ...
The use of growth kinetics in the development of a predictive model for the growth of Eichhornia crassipes (Mart.) Solms in the field.
Abstract available in PDF file.
Growth characteristics of three Eucalyptus clonal hybrids in response to drought stress : the underlying physiology.
Previous research by Drew et al. (2009) on a SAPPI dendrometer trial, in northern KwaZulu-Natal, South Africa, yielded growth results for two Eucalyptus grandis clones (termed E. grandis x urophylla (GU) and E. grandis x ...
Towards developing effective decontamination procedures for in vitro culture of embryonic axes excised from recalcitrant seeds.
Control of seed-associated micro-organisms is vital in reducing losses of plants of economic importance. Recalcitrant seeds being metabolically active and able to be stored only under conditions of high relative humidity ...
Establishing genetic diversity of Rwanda highland banana using random amplified polymorphic DNA markers.
The characterization of the banana germplasm collection from Rubona - Rwanda was investigated using morphological and cytological characteristics of the genomic groups. Genetic diversity was assessed using Random Amplified ...
The secretory apparatus of Ceratotheca triloba (Pedaliaceae) : morphology and chemical composition of the secretion.
Ceratotheca triloba (Bernh.) E. Mey. ex Hook. f., commonly known as the wild foxglove, is a fast growing annual that is indigenous to southern Africa. The surface of the plant is covered with fine, hair-like trichomes, ...
In vitro generation of somaclonal variant plants of sugarcane (Saccharum spp. hybrids) for tolerance to toxins produced by Fusarium sacchari.
The fungus Fusarium sacchari (Butler) Gams causes stem rot in sugarcane especially in association with the stem borer Eldana saccharina Walker. Sugarcane plants tolerant to F. sacchari PNG40 were obtained by chemical ...