Ethylenediurea (EDU) Affects the Growth of Ozone-Sensitive and Tolerant Ash (Fraxinus excelsior) Trees under Ambient O3 Conditions

@inproceedings{Paoletti2007EthylenediureaA,
  title={Ethylenediurea (EDU) Affects the Growth of Ozone-Sensitive and Tolerant Ash (Fraxinus excelsior) Trees under Ambient O3 Conditions},
  author={Elena Paoletti and Nicla Contran and William J. Manning and Francesco Tagliaferro},
  booktitle={TheScientificWorldJournal},
  year={2007}
}
Adult ash trees (Fraxinus excelsior L.), known to be sensitive or tolerant to ozone, determined by presence or absence of foliar symptoms in previous years, were treated with ethylenediurea (EDU) at 450 ppm by gravitational trunk infusion over the 2005 growing season (32.5 ppm h AOT40). Tree and shoot growth were recorded in May and September. Leaf area, ectomycorrhizal infection, and leaf and fine root biomass were determined in September. EDU enhanced shoot length and diameter, and the number… CONTINUE READING