Browsing by Subject "Chlorophyll a fluorescence"
Now showing items 1-10 of 16
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Assessment of changes in photosystem II structure and function as affected by water deficit in Amaranthus hypochondriacus L. and Amaranthus hybridus L
(Elsevier, 2011)The present study describes the behaviour of photosystem II (PSII) in Amaranthus hypochondriacus and Amaranthus hybridus under water stress conditions, assessed by the analyses of the polyphasic rise in chlorophyll a ... -
Assessment of the biofumigation effect of Canola (Brassica napus) on soil microbial community function and structure
(North-West University, 2012)Sunflower cultivation in South Africa is threatened to a large extent by the fungal parasite, Sclerotinia sclerotiorum, which causes extensive head rot and crop losses of up to 100%. This is a major problem for commercial ... -
Chlorophyll a fluorescence as an indicator of heat stress in cotton (Gossypium hirsutum L.)
(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.)
(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) ... -
Comparing the photochemical potential of quinoa to maize under water stress conditions
(North-West University (South Africa)North-West University, 2020)In the current context of climate change, drought events are one of the major causes of yield reduction in crops. Seeing that South Africa is a water scarce country and along with the future climate change predictions, the ... -
The effect of magnetic water on macadamia plants' physiology and phenological characteristics
(North-West University (South Africa), 2019)The biggest obstacle in the macadamia industry is both slow germination and growth rates. Several research studies have been conducted on magnetized water and its effect on plant growth. Magnetizing water can increase the ... -
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 ... -
The impact of different industrial related abiotic stresses on maize photosynthesis
(North-West University (South Africa), Potchefstroom Campus, 2015)During the past few decades, a sharp rise in industrial activity in the mineral rich Highveld region of South Africa has been seen. Together with this increase in industrial activity, an accompanying increase in urbanization ... -
Influence of elevated CO2 on the growth, yield and photosynthesis of sugarcane
(North-West University (South Africa), 2017)Elevated CO2 levels could possibly increase the water use efficiency of important agricultural crops. The world´s most productive crops are C4 plants, for example, maize, sugarcane, sorghum and amaranth. C4 plants are ... -
Influence of SO2 fumigation on growth, photosynthesis, lipoxygenase and peroxidase activities of soybean (Glycine max), in open–top chambers
(North-West University, 2012)Air pollutant exposure poses a health risk to humans and impacts negatively on agriculture. High levels of air pollution resulted in extensive crop damage and yield reduction in Europe and USA. The Highveld region in South ...