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Cambial activity of Populus tremula x Populus alba clone 717-1B4 in hydroponic culture

Abstract : Populus tremula Michx. × Populus alba L. clone 717-1B4 plants were grown in a hydroponic system in an effort to detect cambial activity in a changing nutrient environment. The secondary growth of the stem was determined by automated measurement of radial growth, as well as by histological study. This is the first time poplar cambial activity has been recorded in a hydroponic system. Further, we demonstrate that nutrient limitations can be tested with progressive deprivation of liquid medium. The system lends itself to measurements of stomatal conductance, primary stem growth, leaf growth, and radial stem growth. In this study we found that primary and secondary growth were affected by nutrient solution limitations. This hydroponic system will be valuable in elucidating the impact of environmental, physiological, and molecular factors on cambial activity and wood formation.
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Domenico Morabito, Aurore Caruso, Sabine Carpin, Cédric Carli, Françoise Laurans, et al.. Cambial activity of Populus tremula x Populus alba clone 717-1B4 in hydroponic culture. Canadian Journal of Forest Research, NRC Research Press, 2006, 36 (3), pp.719-724. ⟨10.1139/X05-287⟩. ⟨hal-02662905⟩

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