Article (Scientific journals)
Agro-physiological and biochemical responses of faba bean (Vicia faba L. var. 'minor') genotypes to water deficit stress
Abid, Ghassen; Hessini, Kamel; Aouida, Marwa et al.
2017In Biotechnologie, Agronomie, Société et Environnement, 21 (2)
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Keywords :
Vicia faba; enzyme activity; drought stress; growth; agronomic characters; drought tolerance
Abstract :
[en] Drought is one of the major abiotic factors affecting growth and productivity of plants by imposing certain morphological, physiological and biochemical changes at different growth stages. The objective of this work is to study key morphological, physiological and biochemical response of faba bean (Vicia faba L. var. 'minor') to soil water deficit stress and to assess the contribution of genetic factors in improving faba bean tolerance to water deficit. Plant of 11 faba bean cultivars were grown in the greenhouse and subjected to three levels of water deficit (90, 50 and 30% of field capacity (FC)) in a simple randomized design for 20 days. Water deficit effects on plant growth, relative water content (RWC), gaz exchange, chlorophyll a (Chla) and Chlorophyll b (Chlb) content, osmoprotectant accumulations (such as proline and soluble sugars), antioxydant enzyme activities and grain yield were determined. Soil water deficit stress reduced growth and affected physiological parameters, especially antioxidant enzyme activities. Water deficit also increased proline, soluble sugars and protein contents. The studied cultivars significantly differed in their responses to water deficit stress. Photosynthetic parameters were less affected in the 'Hara' cultivar. Furthermore, this cultivar produced the highest value of grain yield at 30% FC, and showed higher antioxidant enzyme activities (CAT, GPX and APX), osmoprotectant accumulations, Chlb and RWC. The 'Hara' cultivar was found to be more tolerant to water deficit stress than the other cultivars. Our methodology can be used for assessing the response of faba bean genetic resources to soil water deficit. The identified tolerant cultivar can be utilized as a source for water stress tolerance in faba bean breeding programs aimed at improving drought tolerance.
Disciplines :
Agriculture & agronomy
Author, co-author :
Abid, Ghassen;  University of Tunis El Manar, 901B, TN-2050 Hammam-Lif, Tunisia > Biotechnology Center of Borj Cedria > Laboratory of Legumes
Hessini, Kamel;  Taif Unversity, Faculty of Science, Al-Haweiah, Taif, Kingdom of Saudi Arabia > Biology Department
Aouida, Marwa;  University of Tunis El Manar, 901B, TN-2050 Hammam-Lif, Tunisia > Biotechnology Center of Borj Cedria > Laboratory of Legumes
Aroua, Ibtissem;  University of Tunis El Manar, 901B, TN-2050 Hammam-Lif, Tunisia > Biotechnology Center of Borj Cedria > Laboratory of Legumes
Baudoin, Jean-Pierre ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Phytotechnie tropicale et horticulture
Muhovski, Yordan;  Walloon Agricultural Research Centre, Chaussée de Charleroi, 234, BE-5030 Gembloux, Belgium > Department of Life Sciences > Breeding and Biodiversity Unit
Mergeai, Guy ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Phytotechnie tropicale et horticulture
Sassi, Khaled;  Unversity of Carthage, National Agronomy Institute of Tunisia (INAT), avenue Charles Nicolle, 43, TN-1082 Tunis-Mahrajène, Tunisia > Department of Agronomy and Plant Biotechnology
Machraoui, Myriam;  University of Carthage, National Agronomy Institute of Tunisia (INAT), avenue Charles Nicolle, 43, TN-1082 Tunis-Mahrajène, Tunisia > Department of Agronomy and Plant Biotechnology
Souissi, Fatma;  University of Tunis El Manar, 901 B, TN-2050 Hammam-Lif, Tunisia > Biotechnology Center of Borj Cedria > Laboratory of Legumes
Jebara, Moez;  University of Tunis El Manar, 901B, TN-2050 Hammam-Lif, Tunisia > Biotechnology Center of Borj Cedria > Laboratory of Legumes
Language :
English
Title :
Agro-physiological and biochemical responses of faba bean (Vicia faba L. var. 'minor') genotypes to water deficit stress
Alternative titles :
[fr] Comportement agro-physiologique et biochimique de différents génotypes de féverole (Vicia fava L. var. 'minor') soumis au déficit hydrique
Publication date :
2017
Journal title :
Biotechnologie, Agronomie, Société et Environnement
ISSN :
1370-6233
eISSN :
1780-4507
Publisher :
Presses Agronomiques de Gembloux, Gembloux, Belgium
Volume :
21
Issue :
2
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 26 April 2017

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