Effect of High Temperature on Fruit Quality Parameters of Contrasting Tomato Genotypes

Lokesha, A.N.; Shivashankara, K. S.; Laxman, R. H.; Geetha, G.; Shankar, Adhi

doi:10.20546/ijcmas.2019.803.124

Cited by 20 publications

(21 citation statements)

References 31 publications

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“…Regarding this point, further molecular analyses are needed to better elucidate possible genetic variations, which could explain the differences in the amounts of these phytochemicals. In addition, harsh environmental conditions, such as high temperature, can also impact lycopene accumulation in tomato fruits . Brandt et al ., for example, reported decreased lycopene biosynthesis under high temperatures in the tomato F 1 variety ‘Lemance’.…”

Section: Resultsmentioning

confidence: 99%

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Selection of tomato landraces with high fruit yield and nutritional quality under elevated temperatures

et al. 2020

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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 tomato landraces selected. RESULTS The tomato landraces analyzed here in a hot climate differed in terms of yield performance, physicochemical parameters of fruit (pH, titratable acidity, degrees 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 identification of PDVIT as the best performer in terms of yield and fruit quality under high temperatures. CONCLUSION The analyses performed here highlight the possibility to identify new landraces that can combine good yield performances and fruit nutritional quality at high temperatures, information that is useful for future breeding programs. © 2020 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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Section: Resultsmentioning

confidence: 99%

“…In addition, harsh environmental conditions, such as high temperature, can also impact lycopene accumulation in tomato fruits. [30][31][32] Brandt et al, 30 for example, reported decreased lycopene biosynthesis under high temperatures in the tomato F 1 variety 'Lemance'.…”

Section: Assessment Of Main Quality Parametersmentioning

confidence: 99%

Selection of tomato landraces with high fruit yield and nutritional quality under elevated temperatures

et al. 2020

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“…Investigating the role of micro RNA in heat and chilling stress response, Yu et al (2020) concluded that miRNA and its target genes may respond to chilling and heat stress by regulating sweet potato growth and development by several biological processes, including secondary metabolism (especially anthocyanin synthesis), maturation processes, defence response, ROS detoxification, and hormone signalling. In heat stress conditions, Lokesha, Shivashankara, Laxman, Geetha, and Shankar (2019) observed the reduced total carotenoids and lycopene content in tomato fruits between flower initiation and harvest, whereas titratable acidity and total soluble solids increased significantly in all genotypes. The other quality parameters of the fruits such as total phenolics, total flavonoids, acidity and Vitamin C were not decreased by high temperature.…”

Section: Plant Response To Abiotic Stress and Biostimulant Applicationmentioning

confidence: 98%

Linking abiotic stress, plant metabolites, biostimulants and functional food

Teklić

Parađiković

Špoljarević

et al. 2020

Annals of Applied Biology

102

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Plants must cope with different environmental stresses during their whole lifetime. Abiotic stresses like drought, salt, mineral nutrition disturbances and temperature stress are commonly interconnected through some physiological events in stressed plants, such as the synthesis of protective plant compounds as a response to stress. Many of these, produced within plant primary or secondary metabolism, act as functional compounds not exclusively in plants but in other organisms as well. Concurrently, many of the active compounds in biostimulants which can support plant stress tolerance and productivity in adverse growth conditions are the metabolites or intermediates that may influence the plant's edible parts nutritional quality. Such effects of biostimulants application are not elucidated enough, therefore, we aimed to give an overview of recent advances in the research related to the interplay among abiotic stress, plant response, biostimulants effects and plant‐derived functional food, focusing on plant metabolites as the link which connects the environment with the food chain.

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“…Increase in temperature increased TSS and titrable acidity but decreased total sugars, lycopene, and total carotenoids concentration in tomato (Lokesha et al, 2019). The sugars contribute to the total soluble solids content of tomato fruits (Laxman et al, 2013: Selahle et al, 2014.…”

Section: Discussionmentioning

confidence: 99%

High temperature induced changes in quality and yield parameters of tomato (Solanum lycopersicum L.) and similarity coefficients among genotypes using SSR markers

Vijayakumar

Shanija

Beena

et al. 2021

Heliyon

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High temperature induced by climatic fluctuations are an important threat for plant growth, development and quality of agricultural produces. Adaptableness to environmental changes generally derives from a large set of genetic traits affecting physio-morphological, biochemical and agronomic parameters. Therefore, the identification of genotypes with higher yield and good quality parameters at high temperatures is becoming increasingly necessary for future breeding programs. Here, we analyzed the performance of different tomato genotypes grown under elevated temperatures in terms of yield and nutritional quality of the fruit. High temperature stress was induced from flower initiation to maturity stage by keeping the pots in a temperature controlled green house facility for 45 days. The quality and yield parameters were taken at the harvesting stage. Starch and soluble sugar concentration in the leaves of tomato genotypes showed significant reduction in its amount under heat stress. Titrable acidity (TA), total soluble solids (TSS) and ascorbic acid content of tomato fruits were highest under high temperature conditions compared to ambient condition but lycopene content decreased with rise in temperature. The yield attributes viz., number of fruits/plant, fruit set %, average fruit weight (g), yield per plant (g/plant) were significantly lower for Arka Saurabh, Arka Rakshak and Pusa Rohini when compared to other genotypes under study. Molecular characterization of selected 22 tomato genotypes were assessed using 25 simple sequence repeat (SSR) markers. Phylogenetic tree was constructed by the unweighted neighbour-joining method (UPGMA) using NTSYSpc cluster analysis software. The Jaccard's similarity matrix was constructed using the SIMQUAL method using UPGMA algorithm in NTSYSpc. Jaccard's similarity matrix among these tomato genotypes ranged from a minimum of 0.22 to a maximum of 1 with an average genetic similarity of 0.67. Hence this study has importance in identifying genotypes that could maintain good quality and higher yield under high temperature condition.

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Effect of High Temperature on Fruit Quality Parameters of Contrasting Tomato Genotypes

Cited by 20 publications

References 31 publications

Selection of tomato landraces with high fruit yield and nutritional quality under elevated temperatures

Selection of tomato landraces with high fruit yield and nutritional quality under elevated temperatures

Linking abiotic stress, plant metabolites, biostimulants and functional food

High temperature induced changes in quality and yield parameters of tomato (Solanum lycopersicum L.) and similarity coefficients among genotypes using SSR markers

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