OZONE SHORT TERM FUMIGATION EFFECTS ON PHYSIOLOGICAL PARAMETERS OF YOUNG POPLAR TREES (Populus Nigra)

During a period of thirty (30) days, young trees of Populus nigra were fumigated with a single dose of ozone; 30 ppb for 4 hours under open top chamber (OTC), other trees were kept out of fumigation serving as control. At the end of the experiment, typical necrosis appeared on the leaf since the fif...

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Veröffentlicht in:	Fresenius environmental bulletin 2023-08, Vol.32 (8), p.2858
Hauptverfasser:	Benchohra, Maamar, Hicham, Berrabah, Belgacem, Nouar, Fadlallah, Rabah Hocine
Format:	Artikel
Sprache:	eng
Schlagworte:	Chlorophyll Fumigation Necrosis Ozone Parameters Physiological effects Physiology Stomata Stomatal conductance Trees
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description	During a period of thirty (30) days, young trees of Populus nigra were fumigated with a single dose of ozone; 30 ppb for 4 hours under open top chamber (OTC), other trees were kept out of fumigation serving as control. At the end of the experiment, typical necrosis appeared on the leaf since the fifth day gaining more and more surface. The relationship necrosis– days was shown to be linear (p
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At the end of the experiment, typical necrosis appeared on the leaf since the fifth day gaining more and more surface. The relationship necrosis– days was shown to be linear (p<0.000*). Several physiological parameters were investigated; we found out that ozone caused a decrease of the amount of chlorophylls a and b, total chlorophyll. 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subjects	Chlorophyll Fumigation Necrosis Ozone Parameters Physiological effects Physiology Stomata Stomatal conductance Trees
title	OZONE SHORT TERM FUMIGATION EFFECTS ON PHYSIOLOGICAL PARAMETERS OF YOUNG POPLAR TREES (Populus Nigra)
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