Responses of Quercus ilex from Different Provenances to Experimentally Imposed Water Stress

@article{Pesoli2003ResponsesOQ,
  title={Responses of Quercus ilex from Different Provenances to Experimentally Imposed Water Stress},
  author={P. Pesoli and Loretta Gratani and Walter Larcher},
  journal={Biologia Plantarum},
  year={2003},
  volume={46},
  pages={577-581}
}
Responses of Quercus ilex L. seedlings from three different localities in Italy to experimentally imposed drought stress were analysed. Predawn (Ψpd) and midday (Ψm) leaf water potential of stressed seedlings decreased on an average until −4.0 and −4.2 MPa, respectively, in the severe water stress. At the end of the severe water stress the relative water content (RWC) was 72.5 – 83.6 % and the photosynthetic rates (PN) near zero. The critical threshold value of Ψpd for complete stomatal closure… CONTINUE READING

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