Comparative Study of Drought Stress Effects on Traditional and Modern Apple Cultivars

Genotype-dependent responses of apples to drought stress were evaluated between commercial and traditional apple cultivars. The results indicate different mechanisms of tolerance to investigated drought stress conditions. Chlorophyll fluorescence induction (OJIP) parameters, chlorophyll and caroteno...

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Bibliographic Details
Published in:Plants (Basel) 2021-03, Vol.10 (3), p.561
Main Authors: Mihaljević, Ines, Viljevac Vuletić, Marija, Šimić, Domagoj, Tomaš, Vesna, Horvat, Daniela, Josipović, Marko, Zdunić, Zvonimir, Dugalić, Krunoslav, Vuković, Dominik
Format: Article
Language:English
Subjects:
Apples
Chlorophyll
Climate change
Comparative studies
Cultivars
Drought
Fluorescence
Fruits
Genotypes
Hydrogen peroxide
Leaves
Lipid peroxidation
Lipids
Malondialdehyde
Moisture content
OJIP test
Peroxidation
Phenols
Photoinhibition
Photosynthesis
Proline
Water content
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Summary:Genotype-dependent responses of apples to drought stress were evaluated between commercial and traditional apple cultivars. The results indicate different mechanisms of tolerance to investigated drought stress conditions. Chlorophyll fluorescence induction (OJIP) parameters, chlorophyll and carotenoid content, malondialdehyde (MDA), hydrogen peroxide (H O ), proline, phenols and leaf water content (WC) were measured. The traditional cultivar "Crvenka" confirmed the best tolerance to a drought stress condition, presenting higher photosynthetic efficiency, higher leaf water content, higher levels of chlorophyll content and lower lipid peroxidation with greater membrane stability. The commercial cultivar "Golden Delicious Reinders" showed decreased water content in leaves, increased lipid peroxidation levels and photoinhibition. Considering all results, the commercial cultivar "Golden Delicious Reinders" was adversely affected by drought, while traditional cultivars exhibited better tolerance to drought stress.
ISSN:2223-7747
2223-7747
DOI:10.3390/plants10030561