Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. Screening of sunflower cultivars for metal phytoextraction in a contaminated field prior to mutagenesis
 
research article

Screening of sunflower cultivars for metal phytoextraction in a contaminated field prior to mutagenesis

Nehnevajova, E.
•
Herzig, R.
•
Federer, G.
Show more
2005
International Journal of Phytoremediation

Sunflower can be used for the remediation of metal-contaminated soils. Its high biomass production makes this plant species interesting for phytoextraction and using sunflower oil for a technical purpose may improve the economic balance of phytoremediation. The aim of the present field study was to screen 15 commercial cultivars of Helianthus annuus L., grown on metal-contaminated soil, to find out the variety with the highest metal extraction, which can be further improved by mutation or in vitro breeding procedures. Two different fertilizers (ammonium sulphate and ammonium nitrate) were also used to enhance the bioavailability of metals in soil. Highly significant differences were observed within tested varieties for metal accumulation and extraction efficiency. Furthermore, ammonium nitrate increased cadmium extraction, whereas ammonium sulphate enhanced zinc and lead uptake in most tested cultivars. In this field-based sunflower screening, we found enhanced cumulative Cd, Zn, and Pb extraction efficiency by a factor 4.4 for Salut cultivar. We therefore emphasize that prior to any classical breeding or genetic engineering enhancing metal uptake potential, a careful screening of various genotypes should be done to select the cultivar with the naturally highest metal uptake and to start the genetic improvement with the best available plant material.

  • Details
  • Metrics
Type
research article
DOI
10.1080/16226510500327210
Web of Science ID

WOS:000234494500007

Author(s)
Nehnevajova, E.
Herzig, R.
Federer, G.
Erismann, K.-H.
Schwitzguebel, J.P.  
Date Issued

2005

Published in
International Journal of Phytoremediation
Volume

7

Issue

4

Start page

337

End page

349

Subjects

Helianthus annuus L

•

phytoremediation

•

heavy metal

•

accumulation

•

extraction

•

ammonium nitrate

•

sulphate fertilization

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LBE  
Available on Infoscience
June 7, 2007
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/7703
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés