http://www.cnr.it/ontology/cnr/individuo/prodotto/ID56482

Low temperature induces different cold sensitivity in two poplar clones (Populus×canadensis Mönch 'I-214' and P. deltoides Marsh. 'dvina') (Articolo in rivista)

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Low temperature induces different cold sensitivity in two poplar clones (Populus×canadensis Mönch 'I-214' and P. deltoides Marsh. 'dvina') (Articolo in rivista) (literal)

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Alternative label

Claudia Cocozza ; Bruno Lasserre ; Alessio Giovannelli ; Gaetano Castro ; Giuseppe Fragnelli ; Roberto Tognetti (2009)
Low temperature induces different cold sensitivity in two poplar clones (Populus×canadensis Mönch 'I-214' and P. deltoides Marsh. 'dvina')
in Journal of experimental botany; Oxford University Press, Oxford (Regno Unito)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Claudia Cocozza ; Bruno Lasserre ; Alessio Giovannelli ; Gaetano Castro ; Giuseppe Fragnelli ; Roberto Tognetti (literal)

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Note

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EcoGeoFor Lab, Dipartimento di Scienze e Tecnologie per l'Ambiente e il Territorio (STAT), Universita` degli Studi del Molise, Contrada Fonte Lappone, 86090 Pesche, Italy ; EcoGeoFor Lab, Dipartimento di Scienze e Tecnologie per l'Ambiente e il Territorio (STAT), Universita` degli Studi del Molise, Contrada Fonte Lappone, 86090 Pesche, Italy ; Laboratorio Xilogenesi, Istituto Valorizzazione Legno e Specie Arboree, IVaLSA-CNR, Via Madonna del Piano, 50019 Sesto Fiorentino (FI), Italy ; Unita` di Ricerca per le Produzioni Legnose Fuori Foresta-CRA, Strada per Frassineto, 15033 Casale Monferrato (AL), Italy; Unita` di Ricerca per le Produzioni Legnose Fuori Foresta-CRA, Strada per Frassineto, 15033 Casale Monferrato (AL), Italy; EcoGeoFor Lab, Dipartimento di Scienze e Tecnologie per l'Ambiente e il Territorio (STAT), Universita` degli Studi del Molise, Contrada Fonte Lappone, 86090 Pesche, Italy ; (literal)

Titolo

Low temperature induces different cold sensitivity in two poplar clones (Populus×canadensis Mönch 'I-214' and P. deltoides Marsh. 'dvina') (literal)

Abstract

Changes of stem diameter were continuously monitored during winter in two field-grown poplar clones, using automatic point dendrometers. The objective of this study was to find an analytical solution to seasonal synchronization of stem diameter oscillations and low air temperatures. The study identified to what extent and with what frequency low air temperature induced stem diameter variation in 'Dvina' (P. deltoides) and 'I-214' (Populusxcanadensis) poplar clones, after exposure to summer drought. The patterns of reversible stem shrinkage were related to the cycles of low air temperature. Hourly and daily evidence showed that 'I-214' was more sensitive to low air temperatures than 'Dvina'. The analysis of raw data and graphic details implemented with the study of derivative tests allowed an increase in the general sensitivity of the investigation applied to describe the response of poplar clones to environmental conditions. Given these diameter fluctuation patterns, automatic point dendrometers were confirmed to be a reliable non-invasive method for testing the sensitivity of diameter variation to cold temperature. Variation in rate and duration of daily stem shrinkage in response to low air temperature in winter appeared to occur independently of the effects of water deficit suffered by plants the previous summer. (literal)

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