Yield, quality and biochemical properties of various strawberry cultivars under water stress
2018
Adak, Nafiye | Gübbük, H. (Hamide) | Tetik, Nedim
BACKGROUND: Although strawberry (Fragaria x ananassa Duch.) species are sensitive to abiotic stress conditions, some cultivars are known to be tolerant to different environmental conditions. We examined the response of different strawberry cultivars to water stress conditions in terms of yield, quality and biochemical features. The trial was conducted under two different irrigation regimes: in grow bags containing cocopeat (control, 30%; water stress, 15% drainage) with four different cultivars (Camarosa, Albion, Amiga and Rubygem). RESULTS: Fruit weight declined by 59.72% and the yield per unit area by 63.62% under water stress conditions as compared to control. Albion and Rubygem were found to be more tolerant and Amiga the most sensitive in terms of yield under stress conditions. Water stress increased all biochemical features in fruits such as total phenol, total anthocyanin, antioxidant activity and sugar contents. Among the cultivars, glucose and fructose was higher in Albion. CONCLUSION: Considering the rise in global warming, identification of resistant and tolerant cultivars to stress conditions are crucial for future breeding programmes. Our results showed that some of the fruit's physical features were affected negatively by stress conditions whereas many of the biochemical features such as total anthocyanin content, total phenolic content and antioxidant activity were positively modulated. © 2017 Society of Chemical Industry
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