Now showing items 61-70 of 239
Promoters for sugarcane transformation : isolation of specific sequences and evaluation of rolC.
Increasing the sucrose yield and the disease resistance of plants are two major objectives of the transgenic sugarcane plant programme in South Africa. The sugarcane culm has thus been identified as one of the main target ...
Resource quantification, use and sustainable management of coastal forests in the eastern Cape province.
Indigenous forests of South Africa are few, small in size and highly fragmented, yet they face intense exploitation particularly in the rural areas. Management of these forests is challenging. High rural dependency on ...
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 ...
Anti-inflammatory and anti-bacterial activity of South African Erythrina species.
An investigation was undertaken to determine whether Erythrina species indigenous to South Africa contained the same type of compounds as Erythrina species not found in South Africa and to determine whether they displayed ...
Studies on the primary phloem of Gomphocarpus physocarpus.
Penetration of the stems and leaves of Gomphocnrpus physocarpus by the aphid, Aphis nerii was studied with light and phase microscopes. Penetration of the epidermis and ground tissue was largely intercellular, that ...
The reproductive biology, natural enemies and biological control of Delairea odorata Lem.
Delairea odorata Lem., an asteraceous perennial vine indigenous to southern Africa, has become naturalised and invasive in many subtropical regions including California, South Australia and Hawaii. Biological control ...
Systematic studies in African Indigofereae (Leguminosae, Papilionoideae)
A cladistic analysis of 51 generic and infrageneric taxa in the tribe Indiqofereae (Papilionoideae) is presented, comprising q 570 species in Africa and Madagascar. Traditionally, 4 genera have been recognized: Phylloxylon ...
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 ...