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Scheepers C, Strasser R, Kruger G. Effect of ozone on photosynthesis and seed yield of sensitive (S156) and resistant (R123) <i>Phaseolus vulgaris</i&gt; L. genotypes in open-top chambers. SATNT [Internet]. 19Dec.2013 [cited 2May2024];32(1):1 page. Available from: http://satnt.co.za/index.php/satnt/article/view/413