Search
Search results for
We found
7 results for you
-
Ontogeny of Themeda triandra tillers in the false thornveld of the eastern cape
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: J.E. Danckwerts --- Department of Agriculture (Eastern Cape Region), A.J. Aucamp --- Department of Agriculture (Eastern Cape Region), L.P. Du Toit --- Department of Agriculture (Eastern Cape Region),Marked populations of Themeda triandra tillers were sequentially sampled at fortnightly intervals under normal conditions and without moisture stress respectively, covering a period from tiller initiation through to senescence after flowering. Parameters recorded were height of shoot apex, tiller mass,... -
The influence of tiller age and time of year on the growth of Themeda tri andra and Sporobolus fimbriatus in semi‐arid grassveld
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: J.E. Danckwerts --- Department of Agriculture (Eastern Cape Region),Sequential growth measurements were made on successive populations of Themeda triandra and Sporobolus fimbriatus tillers initiated at different times of the year. The independent influences of tiller age and time of year on tiller growth were isolated by deriving growth... -
The influence of nitrogen fertilization, spring burning and height of stubble on hay and seed production of eragrostis curvula 1
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: N.F.G. Rethman --- Department of Plant Production, B.H. Beukes --- Department of Agriculture & Water Supply,This investigation, conducted over a three‐year period, emphasized the strong effect of nitrogen fertilization on both hay and seed production. The optimum level of nitrogen, for conditions on the Eastern Highveld being 100–150 kg N/ha applied in spring, followed by... -
The effect of severe drought and management after drought on the mortality and recovery of semi‐arid grassveld
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: J.E. Danckwerts --- Department of Agriculture (Eastern Cape Region), G.C. Stuart‐Hill --- Department of Agriculture (Eastern Cape Region),The False Thornveld of the Eastern Cape experienced a particularly intense drought during the 1982/83 growing season. Extensive grass mortality took place during the drought. After the drought, recovery was particularly sensitive to the post‐drought management treatment applied. Veld that... -
The effect of frequency of defoliation on themeda triandra in the false Thornveld of the Eastern Cape
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: J.E. Danckwerts --- Department of Agriculture and Water Supply (Eastern Cape Region), L.O. Nel --- Department of Agriculture and Water Supply (Eastern Cape Region),Tufts of Themeda triandra were subjected to different frequencies of defoliation during a single season under irrigated and non‐irrigated conditions. Frequent defoliation (> 5 times per year) severely reduced clipped yield on both moisture treatments. On irrigated treatments, root mass... -
Response of Cymbopogon validus tillers to three clipping frequencies
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: SheonaE. Shackleton --- Department of Botany, Transkei M.T. Mentis --- Department of Botany, Republic of South AfricaThe response of tagged Cymbopogon validus tillers to three clipping frequencies indicated that this species is intolerant of severe and frequent defoliation. This could account for its decreased abundance in heavily‐grazed areas in and around Mkambati Game Reserve, Transkei. -
Early survival and growth of vegetatively propagated indigenous grasses in a clear-felled timber plantation in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: JCO du Toit --- School of Biological and Conservation Sciences, South AfricaTransformation of natural landscapes can result in the local extinction of many plant species. If the new land use is discontinued, many original species will not recolonise the area, necessitating their reintroduction for rehabilitation purposes. One method is to fragment...