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Genotypic variation in leaf epicuticular wax quantity in a large faba bean (Vicia faba L.) germplasm collection

Published online by Cambridge University Press:  04 December 2018

Hamid Khazaei Open the ORCID record for Hamid Khazaei [Opens in a new window] ,
Arja Santanen ,
Kenneth Street  and
Frederick L. Stoddard Open the ORCID record for Frederick L. Stoddard [Opens in a new window]
Hamid Khazaei*
Affiliation:
Department of Agricultural Sciences, Viikki Plant Science Centre, Helsinki Sustainability Science Centre, University of Helsinki, Helsinki, Finland
Arja Santanen
Affiliation:
Department of Agricultural Sciences, Viikki Plant Science Centre, Helsinki Sustainability Science Centre, University of Helsinki, Helsinki, Finland
Kenneth Street
Affiliation:
International Center for Agricultural Research in the Dry Areas (ICARDA), Rabat, Morocco
Frederick L. Stoddard
Affiliation:
Department of Agricultural Sciences, Viikki Plant Science Centre, Helsinki Sustainability Science Centre, University of Helsinki, Helsinki, Finland
*
*Corresponding author. E-mail: hamid.khazaei@gmail.com
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Abstract

Among grain legumes, faba bean is reputed to be relatively sensitive to drought stress. Epicuticular wax (ECW) quantity is considered as an important drought adaptation strategy in plant species. This study aimed to define variation in leaf ECW concentration as a drought-adaptive trait in 197 faba bean accessions under well-watered conditions. The relationship between ECW and stomatal characteristics was also investigated. Highly significant differences were found in the ECW concentration, which ranged from 0.680 to 2.104 mg/dm2. No relationships were found between ECW and any measure of stomatal morphology and function. This study provides evidence of the wide variation in ECW in faba bean germplasm, which is independent of stomatal characteristics and leaf water content. This variation may allow the genetic improvement of ECW as a drought-adaptive character in faba bean breeding programs aiming at the economical use of water.

Keywords

droughtepicuticular waxfaba beangenetic diversitystomata
Type
Short Communication
Information
Plant Genetic Resources , Volume 17 , Issue 3 , June 2019 , pp. 298 - 300
Copyright
Copyright © NIAB 2018 

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Footnotes

†

Present address: Department of Plant Sciences, University of Saskatchewan, Saskatoon, Canada.

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