Browsing Faculty of Natural and Agricultural Sciences by Author "Berner, J.M."
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Chlorophyll a fluorescence as an indicator of heat stress in cotton (Gossypium hirsutum L.)
Van der Westhuizen, M.M.; Berner, J.M.; Boogaers, N.; Oosterhuis, D.M. (Taylor & Francis, 2020)Cotton (Gossypium hirsutum L.) is a major fibre crop that is greatly affected by climatic factors, especially drought and high temperatures. Excessive temperature (above 30 °C) during the reproductive stage (flowering) ... -
Chlorophyllafluorescence as an indicator of heat stress in cotton (Gossypium hirsutumL.)
Van der Westhuizen, M.M.; Berner, J.M.; Boogaers, N.; Oosterhuis, D.M. (Taylor & Francis, 2020)Cotton (Gossypium hirsutum L.) is a major fibre crop that is greatly affected by climatic factors, especially drought and high temperatures. Excessive temperature (above 30 °C) during the reproductive stage (flowering) ... -
Opportunistic survival strategy of Welwitschia mirabilis : recent anatomical and ecophysiological studies elucidating stomatal behaviour and photosynthetic potential
Krüger, G.H.J.; Jordaan, A.; Tiedt, L.R.; Strasser, R.J.; Berner, J.M. (Canadian Science Publishing, 2017)We present new findings on leaf and stomatal apparatus anatomy and ecophysiology of Welwitschia mirabilis Hook.f. that are relevant to survival in the desert. We show that the structure of the stomatal apparatus with ... -
Oxidation of fatty acids are associated with Russian wheat aphid resistance in wheat
Berner, J.M.; Van der Westhuizen, A.J. (Akadémiai Kiadó, 2015)The oxidation of fatty acids, which is responsible for changes in lipid composition, were investigated in a comparative study using the Russian wheat aphid (RWA) (Diuraphis noxia), infested and un-infested resistant (Tugela ...