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In situ 13CO2 pulse labelling of field-grown eucalypt trees revealed the effects of potassium nutrition and throughfall exclusion on phloem transport of photosynthetic carbon

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Epron D., Cabral O., Laclau J.P., Dannoura M., Packer A.P., Plain C., Battie Laclau P., Moreira M.Z., Trivelin P.C.O., Bouillet J.P., Gérant D., Nouvellon Y.
2015

Potassium (K) is an important limiting factor of tree growth, but little is known of the effects of K supply on the long-distance transport of photosynthetic carbon (C) in the phloem and of the interaction between K fertilization and drought. We pulse-labelled 2-year-old Eucalyptus grandis L. trees grown in a field trial combining K fertilization (+K and ?K) and throughfall exclusion (+W and ?W), ...

Production forestière; Physiologie végétale : nutrition

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