RETRACTED ARTICLE: Physiological comparative study of six wild grapevine (Vitis sylvestris) accession responses to salinity

Salinity problems for vineyards are in concerns, especially in coastal areas where several aquifers are reported to be affected by seawater intrusion and agricultural contamination. Saline irrigation affects growth, yield, and fruit quality of grapevines. Exploring germplasm base through wild ancest...

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Bibliographic Details
Published in:Arabian journal of geosciences 2017, Vol.10 (11), p.1-8, Article 246
Main Authors: Askri, Hend, Gharbi, Fatma, Rejeb, Saloua, Mliki, Ahmed, Ghorbel, Abdelwahed
Format: Article
Language:English
Subjects:
Agricultural pollution
Chemical analysis
Chlorophyll
Coastal aquifers
Coastal zone
Comparative studies
Earth and Environmental Science
Earth science
Earth Sciences
Genotypes
Growth rate
Iciem 2016
Irrigation water
Photochemistry
Plant growth
Plant nutrition
Saline water
Saline water intrusion
Salinity
Salt tolerance
Seawater
Sodium chloride
Water analysis
Water relations
Water Resource Management for Sustainable Development
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Summary:Salinity problems for vineyards are in concerns, especially in coastal areas where several aquifers are reported to be affected by seawater intrusion and agricultural contamination. Saline irrigation affects growth, yield, and fruit quality of grapevines. Exploring germplasm base through wild ancestors of the target species is a novel adopted strategy to increase crop tolerance to irrigation with saline water. The effects of salt on growth, organic and inorganic solute accumulations, and chlorophyll florescence were studied on 3-month-old plants of six Tunisian wild grapevines with the objective to identify salt tolerance mechanisms and select tolerant genotypes. Potted plants were grown under controlled conditions and irrigated for 14 days with 0, 100, and 150 mM NaCl nutrient solution. Parameters analyzed were related to growth, water relations, mineral nutrition, and chlorophyll fluorescence. Several processes are operating either at the whole plant or at cell level. They appear to be involved in salt tolerance of wild grapevines and are more efficient in tolerant accessions. Salt adversely affects plant growth and plant nutrition. Reductions of shoot growth rate (relative growth rate, day −1 ) reached 49% of control since 100 mM NaCl. They were assigned to stomatal closure and alteration of potassium nutrition and photochemistry. There were significant differences ( P  
ISSN:1866-7511
1866-7538
DOI:10.1007/s12517-017-3041-x