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Rangeland management approaches, including rotational grazing, rely on assumptions about plant growth responses to the intensity, or severity (sward height) plus frequency, of defoliation. We tested these assumptions at the farm, patch and plant scale using data from a grazing management trial...
The 75 000 ha, hyper-arid area of Riemvasmaak represents one of the first land restitution cases in post-apartheid South Africa. People who were forcibly removed in 1974 were resettled in 1995. We describe the impact that people and domestic livestock have had on the vegetation of Riemvasmaak...
Sorghum (Sorghum bicolor L.) is widely cultivated in semiarid West Africa as a combined crop for human consumption and animal feed. In order to address the shortage of ruminant feed in Burkina Faso, we studied the potential of preparing silage from sorghum at various growth stages and analysed...
Themeda triandra has bigeniculate hygroscopic lemma seed awns that twist when wet and drying, thereby transporting the caryopsis across the soil surface into suitable germination microsites. The prediction that awns would be longer in drier grassland and have greater motility to enable them to...
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