https://commons.ru.ac.za/vital/access/manager/Index ${session.getAttribute("locale")} 5 The zonation of coastal dune plants in relation to sand burial, resource availability and physiological adaptation https://commons.ru.ac.za/vital/access/manager/Repository/vital:4195 Wed 12 May 2021 23:59:16 SAST ]]> Investigating the use of Arbuscular Mycorrhizas and Plant Growth Promoting Bacteria to improve the drought tolerance of maize (Zea mays L.) https://commons.ru.ac.za/vital/access/manager/Repository/vital:26591 Wed 12 May 2021 20:00:07 SAST ]]> Drought responses of selected C₄ photosynthetic NADP-Me and NAD-Me Panicoideae and Aristidoideae grasses https://commons.ru.ac.za/vital/access/manager/Repository/vital:4272 Wed 12 May 2021 19:24:38 SAST ]]> Local versus landscape effects of bush encroachment on plant available light, soil moisture, frost occurrence and herbaceous productivity and composition https://commons.ru.ac.za/vital/access/manager/Repository/vital:20376 Wed 12 May 2021 17:27:22 SAST ]]> Drought responses of C3 and C4 (NADP-ME) Panicoid grasses https://commons.ru.ac.za/vital/access/manager/Repository/vital:4193 Wed 12 May 2021 16:36:07 SAST ]]> Photosynthetic and growth responses of C3 and C4 grasses to short- duration sunflecks and resultant consequences for their performance in understory environments https://commons.ru.ac.za/vital/access/manager/Repository/vital:20753 Wed 12 May 2021 16:20:45 SAST ]]> Phylogeography and comparative ecophysiology of Chrysanthemoides Turn. Ex Medik. (Tribe Calenduleae) https://commons.ru.ac.za/vital/access/manager/Repository/vital:4256 Wed 12 May 2021 15:46:14 SAST ]]> Water requirements and distribution of Ammophila arenaria and Scaevola plumieri on South African coastal dunes https://commons.ru.ac.za/vital/access/manager/Repository/vital:4219 Thu 13 May 2021 07:20:36 SAST ]]> Growth and photosynthetic responses of Acacia (Vachellia) seedlings to atmospheric CO2 increased from glacial to current concentrations: underlying mechanisms and ecological implications https://commons.ru.ac.za/vital/access/manager/Repository/vital:37604 Thu 13 May 2021 05:17:22 SAST ]]> Browsing as a demographic bottleneck in a semi-arid savanna: the effect of size and age on compensatory responses of Vachellia karroo seedlings after simulated herbivory https://commons.ru.ac.za/vital/access/manager/Repository/vital:20741 9 mm in stem basal diameter (SBD)). Browsing had a strong negative effect on seedlings, resulting in reduced investment in leaf biomass. These findings suggest plant size and age can be used as robust predictors of a plants vulnerability to browsing. An increase in tree cover requires successful transitions of seedlings to saplings (also known as release). The results of this study suggest that in semi-arid savannas, browsing can impact tree cover through imposing a release bottleneck for tree seedlings and to lesser extent saplings. By limiting tree growth plants are kept in a disturbance trap and will therefore be exposed to not only browsers but fire. These findings also have important implications for tree-grass coexistence dynamics, suggesting that specific size and browsing thresholds should be considered in savanna management.]]> Thu 13 May 2021 03:02:45 SAST ]]> The effect of geography, cultivation and harvest technique on the umckalin concentration and growth of pelargonium sidoides (Geraniaceae) https://commons.ru.ac.za/vital/access/manager/Repository/vital:4234 Thu 13 May 2021 01:09:35 SAST ]]>