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Rendimiento fotosintÚtico del girasol resistente a imidazolinona expuesto al tratamiento individual y combinado con el herbicida Imazamox y un extracto de Aminoßcidos (Terra Sorb)

Front. Plant Sci., 25 October 2016

The herbicide imazamox may provoke temporary yellowing and growth retardation in IMI-R sunflower hybrids, more often under stressful environmental conditions. Although, photosynthetic processes are not the primary sites of imazamox action, they might be influenced; therefore, more information about the photosynthetic performance of the herbicide-treated plants could be valuable for a further improvement of the Clearfield technology. Plant biostimulants have been shown to ameliorate damages caused by different stress factors on plants, but very limited information exists about their effects on herbicide-stressed plants. In order to characterize photosynthetic performance of imazamox-treated sunflower IMI-R plants, we carried out experiments including both single and combined treatments by imazamox and a plant biostimulants containing amino acid extract. We found that imazamox application in a rate of 132 μg per plant (equivalent of 40 g active ingredient ha−1) induced negative effects on both light-light dependent photosynthetic redox reactions and leaf gas exchange processes, which was much less pronounced after the combined application of imazamox and amino acid extract.

Dobrinka A. Balabanova, Momchil Paunov, Vasillij Goltsev, Ann Cuypers, Jaco Vangronsveld and Andon Vassilev
1 Department of Plant Physiology and Biochemistry, Agricultural University, Plovdiv, Bulgaria, 2 Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium, 3 Department of Biophysics and Radiobiology, Faculty of Biology, Sofia University,

idioma: InglÚs


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Etiquetas: aminoßcidos terra-sorb

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