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Gas exchange and foliage characteristics of two poplar clones grown in soil amended with industrial waste.

Identifieur interne : 004259 ( Main/Exploration ); précédent : 004258; suivant : 004260

Gas exchange and foliage characteristics of two poplar clones grown in soil amended with industrial waste.

Auteurs : Roberto Tognetti [Italie] ; Luca Sebastiani ; Antonio Minnocci

Source :

RBID : pubmed:14652216

Descripteurs français

English descriptors

Abstract

Plants can remove or immobilize various environmental contaminants; however, little is known about the physiological mechanisms underlying responses to soil amendment with biosolids contaminated with heavy metals. We investigated the responses of cuttings of hybrid poplar clones Eridano and I-214 grown for a season in soil amended with nutrient-rich organic material from tanneries, which contains potentially toxic amounts of heavy elements. Plant growth traits, gas exchange parameters, stomatal density and leaf layer thickness of frozen-hydrated leaves, and foliar concentrations of heavy metals and nitrogen were determined. Overall, soil amendment increased net assimilation rate and growth, but the cuttings accumulated only small quantities of heavy metal soil contaminants.

DOI: 10.1093/treephys/24.1.75
PubMed: 14652216


Affiliations:


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Le document en format XML

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