BACKGROUND:Global warming and extreme or adverse events induced by climatic fluctuations, are an important threat for plants growth and agricultural production. Adaptability to environmental changes prevalently derives from a large set of genetic traits affecting physiological and agronomic parameters. Therefore, the identification of genotypes that are good yield performer at high temperatures is becoming increasingly necessary for future breeding programs. Here, we analyzed the performances of different tomato landraces grown under elevated temperatures in terms of yield and nutritional quality of the fruit. Finally, we evaluated the antioxidant and anti-inflammatory activities of fruit extracts from the selected tomato landraces. RESULTS:Tomato landraces here analyzed in a hot climate differed in terms of yield performance, physicochemical parameters of fruit (pH, titratable acidity, °Brix, firmness), bioactive compounds (ascorbic acid, carotenoids and polyphenols) and anti-inflammatory potential. Three of these landraces (named E30, E94 and PDVIT) showed higher fruit quality and nutritional value. An estimated Evaluation Index allowed to identify PDVIT as the best performer in term of yield and fruit quality under high temperatures. CONCLUSION:The analyses here performed highlight the possibility to identify new landraces that can combine good yield performances and fruit nutritional quality at high temperatures, useful for future breeding programs. This article is protected by copyright. All rights reserved.
Selection Of Tomato Landraces With High Fruit Yield and Nutritional Quality Under Elevated Temperatures
Marcello Chieppa;
2020-01-01
Abstract
BACKGROUND:Global warming and extreme or adverse events induced by climatic fluctuations, are an important threat for plants growth and agricultural production. Adaptability to environmental changes prevalently derives from a large set of genetic traits affecting physiological and agronomic parameters. Therefore, the identification of genotypes that are good yield performer at high temperatures is becoming increasingly necessary for future breeding programs. Here, we analyzed the performances of different tomato landraces grown under elevated temperatures in terms of yield and nutritional quality of the fruit. Finally, we evaluated the antioxidant and anti-inflammatory activities of fruit extracts from the selected tomato landraces. RESULTS:Tomato landraces here analyzed in a hot climate differed in terms of yield performance, physicochemical parameters of fruit (pH, titratable acidity, °Brix, firmness), bioactive compounds (ascorbic acid, carotenoids and polyphenols) and anti-inflammatory potential. Three of these landraces (named E30, E94 and PDVIT) showed higher fruit quality and nutritional value. An estimated Evaluation Index allowed to identify PDVIT as the best performer in term of yield and fruit quality under high temperatures. CONCLUSION:The analyses here performed highlight the possibility to identify new landraces that can combine good yield performances and fruit nutritional quality at high temperatures, useful for future breeding programs. This article is protected by copyright. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
