Effects of drought stress induced by D-Mannitol on the germination and early seedling growth traits, physiological parameters and phytochemicals content of Tunisian squash (
Cucurbita maxima Duchesne
carotenoids
chlorophyll fluorescence
seed germination
seedling vigor
total phenols content
water stress
Journal
Frontiers in plant science
ISSN: 1664-462X
Titre abrégé: Front Plant Sci
Pays: Switzerland
ID NLM: 101568200
Informations de publication
Date de publication:
2023
2023
Historique:
received:
01
05
2023
accepted:
07
07
2023
medline:
21
8
2023
pubmed:
21
8
2023
entrez:
21
8
2023
Statut:
epublish
Résumé
Drought stress is one of the most devastating environmental stressors, especially in the arid and semi-arid regions of the world. Considering the major constraints that drought stress poses to crop production and the consequent yield losses in food crops, breeding for climate-resilient crops is an efficient means to mitigate stress conditions. This study aimed at evaluating the response of four squash ( Our results indicate a magnitude of drought stress effects reflected via repression of germination and seedling growth as well as adjustments in physiological functions at later growth stages, in a genotype depended manner. Among landraces, "751" and "746" showed better performance, as evidenced by higher seed germination and seedling growth potential even at high stress levels (-0.47 and - 0.73 MPa), whereas "747" was the most sensitive landrace to drought stress at both tested stages. In conclusion, our findings highlight the importance of squash landraces selection for the identification of elite genotypes with increased tolerance to drought stress.
Identifiants
pubmed: 37600166
doi: 10.3389/fpls.2023.1215394
pmc: PMC10432687
doi:
Types de publication
Journal Article
Langues
eng
Pagination
1215394Informations de copyright
Copyright © 2023 Saadaoui, Tarchoun, Msetra, Pavli, Falleh, Ayed, Amami, Ksouri and Petropoulos.
Déclaration de conflit d'intérêts
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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