Show simple item record

dc.contributor.authorHeyneke, E.
dc.contributor.authorStrauss, A.J.
dc.contributor.authorVan Heerden, P.D.R.
dc.contributor.authorKrüger, G.H.J.
dc.contributor.authorStrasser, R.J.
dc.identifier.citationHeyneke, E. et al. 2013. SO2-drought interaction on crop yield, photosynthesis and symbiotic nitrogen fixation in soybean (Glycine max). (In Kuang, T., Lu, C. & Zhang, L., eds. Photosynthesis research for food, fuel and the future. 15th International Conference on Photosynthesis: 612-615). []en_US
dc.identifier.isbn978-3-642-32034-7 (Online)
dc.description.abstractSouth Africa has an energy-intensive economy, resulting in substantial SO2 pollution. Well watered and drought stressed soybean (Glycine max) were exposed to SO2 in open-top chambers to study the physiology of SO2 injury by measuring in parallel: growth, biomass accumulation, photosynthetic gas exchange, chlorophyll a fluorescence, in vitro Rubisco activity and symbiotic nitrogen fixation. A strong concentration dependent SO2-induced inhibition was displayed in all parameters. A reduction in photosynthesis occurred without any accompanying visual injury symptoms. SO2 exposure also resulted in large reductions in biomass and seed yield and root nodule ureide content. The chlorophyll a fluorescence data, pointing at impaired electron transport and formation of end electron acceptors as well as the in vitro Rubisco activity, supported the gas exchange data. Inhibition of photosynthesis, proved to be the main constraint imposed by SO2. SO2-stress was aggravated by simultaneous drought stressen_US
dc.subjectGlycine maxen_US
dc.subjectSulphur dioxideen_US
dc.subjectOpen-Top chambersen_US
dc.subjectPhotosynthetic electron transporten_US
dc.titleSO2-drought interaction on crop yield, photosynthesis and symbiotic nitrogen fixation in soybean (Glycine max)en_US
dc.typeBook chapteren_US
dc.contributor.researchID11289937 - Van Heerden, Philippus Daniel Riekert
dc.contributor.researchID10172866 - Krüger, Gert Hendrik Jacobus
dc.contributor.researchID12605654 - Heyneke, Elmien
dc.contributor.researchID11307943 - Strauss, Abram Johannes

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record