Key message: Highly tolerant and productive willow cultivars have been identified as potential candidates for phytoremediation of contaminated soil with petroleum hydrocarbons (PHs) in southern Quebec, Canada. Abstract: Tolerance of Salix to various organic and inorganic contaminants has been well documented and can vary widely among genotypes. In this study, we compared the responses and tolerances of 11 willow cultivars grown in soil contaminated with petroleum hydrocarbons. The study aimed to identify cultivars with the best performance and capacity to establish under these conditions. Using cuttings of the selected willow genotypes, a high-density field experiment was set up on a former industrial site encompassing two distinct sectors: one contaminated (900 m2), and the other uncontaminated (2,400 m2), which was used as control following a randomized block design. Trees were monitored over two growing seasons by recording a series of growth parameters and physiological measurements (leaf area, chlorophyll concentration, stomatal conductance and nutrient concentration). Genotypic differences explained most of the responses of cultivars observed to soil contamination. S. miyabeana (SX67 and SX61) achieved the highest biomass production, while S. nigra (S05) and S. acutifolia (S54) had the highest photosynthetic capacity. While the cultivars S. × dasyclados (SV1), S. purpurea (‘Fish Creek’) and S. caprea (S365) appeared to be negatively affected by the presence of contaminants, the establishment and development of S05, S. eriocephala (S25) and S. purpurea × S. miyabeana (‘Millbrook’) was much less influenced by soil pollution. Our results will help to guide cultivar selection in future phytoremediation projects.

Grenier, V., Pitre, F., GUIDI NISSIM, W., Labrecque, M. (2015). Genotypic differences explain most of the response of willow cultivars to petroleum-contaminated soil. TREES, 29(3), 871-881 [10.1007/s00468-015-1168-5].

Genotypic differences explain most of the response of willow cultivars to petroleum-contaminated soil

Werther Guidi Nissim;
2015

Abstract

Key message: Highly tolerant and productive willow cultivars have been identified as potential candidates for phytoremediation of contaminated soil with petroleum hydrocarbons (PHs) in southern Quebec, Canada. Abstract: Tolerance of Salix to various organic and inorganic contaminants has been well documented and can vary widely among genotypes. In this study, we compared the responses and tolerances of 11 willow cultivars grown in soil contaminated with petroleum hydrocarbons. The study aimed to identify cultivars with the best performance and capacity to establish under these conditions. Using cuttings of the selected willow genotypes, a high-density field experiment was set up on a former industrial site encompassing two distinct sectors: one contaminated (900 m2), and the other uncontaminated (2,400 m2), which was used as control following a randomized block design. Trees were monitored over two growing seasons by recording a series of growth parameters and physiological measurements (leaf area, chlorophyll concentration, stomatal conductance and nutrient concentration). Genotypic differences explained most of the responses of cultivars observed to soil contamination. S. miyabeana (SX67 and SX61) achieved the highest biomass production, while S. nigra (S05) and S. acutifolia (S54) had the highest photosynthetic capacity. While the cultivars S. × dasyclados (SV1), S. purpurea (‘Fish Creek’) and S. caprea (S365) appeared to be negatively affected by the presence of contaminants, the establishment and development of S05, S. eriocephala (S25) and S. purpurea × S. miyabeana (‘Millbrook’) was much less influenced by soil pollution. Our results will help to guide cultivar selection in future phytoremediation projects.
Articolo in rivista - Articolo scientifico
Biomass; Organic compound; Phytoremediation; Salix physiology;
English
871
881
11
Grenier, V., Pitre, F., GUIDI NISSIM, W., Labrecque, M. (2015). Genotypic differences explain most of the response of willow cultivars to petroleum-contaminated soil. TREES, 29(3), 871-881 [10.1007/s00468-015-1168-5].
Grenier, V; Pitre, F; GUIDI NISSIM, W; Labrecque, M
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/358968
Citazioni
  • Scopus 24
  • ???jsp.display-item.citation.isi??? 24
Social impact