Browsing by Subject "JIP-test"
Now showing items 1-7 of 7
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Effect of O3 fumigation on photosynthesis and growth of quinoa and its interaction with drought and elevated CO2
(North-West University, 2018)South Africa is a water scarce country frequently experiencing drought and has an extremely energy intensive economy contributing to the escalating levels of air pollutants which are threatening food production and ... -
Effect of trifluoroacetate, a persistent degradation product of fluorinated hydrocarrbons, on Phaseolus vulgaris and Zea mays
(Elsevier, 2009)The aim of this study was to quantify the effect of the pollutant, trifluoroacetate (TFA), on growth and photosynthesis of Phaseolus vulgaris (C3) and Zea mays (C4) in order to elucidate the physiological and biochemical ... -
Inhibition of photosystem II activities in soybean (Glycine max) genotypes differing in chilling sensitivity
(Elsevier, 2014)Due to chilling sensitivity, minimum night temperatures represent the main constraint in soybean production in South Africa. In vivo quantification of photosystem II (PSII) function by direct chlorophyll fluorescence ... -
Open-top chamber facility to study air pollution impacts in South Africa. Part II: SO2-drought interactions on yield, photosynthesis and symbiotic nitrogen fixation in soybean
(Taylor & Francis, 2012)South Africa has an extremely energy-intensive economy, resulting in substantial air pollution through its coal-fired power stations. Modelled sulphur dioxide (SO2) concentrations on the central Highveld mostly range between ... -
Photosynthetic responses of canola and wheat to elevated levels of CO2, O3 and water deficit in open-top chambers
(MDPI, 2019)The effects of elevated CO2 (700 ppm) and O3 (80 ppb) alone and in combination on the photosynthetic efficiency of canola and wheat plants were investigated in open-top chambers (OTCs). The plants were fumigated for four ... -
Photosynthetic responses of canola and wheat to elevated levels of CO₂ and O₃ in open-top chambers
(North-West University (South Africa), 2019)The concentrations of carbon dioxide (CO2) and ozone (O3) are increasing in the atmosphere. The effects of elevated CO2 (700 ppm), O3 (80 and 120 ppb) and the combination of these two gases on the photosynthetic performance ... -
The use of OJIP fluorescence transients to monitor the effect of elevated ozone on biomass of canola plants + Correction
(Springer, 2019)The effects of elevated ozone (O3) levels (80 ppb and 120 ppb) on photosynthetic efficiency and growth of canola plants were studied in open-top chambers. The chlorophyll a polyphasic fluorescence rise kinetics OJIP, ...