Relationship between polyphenol oxidase activity and nutrition, maturity and quality parameters in flat peach

Pascual, M.; Mir, Josep María Villar; Lordan, Joan; Fonseca, Francisco; Falguera, Víctor; Rufat, J.

doi:10.1002/jsfa.6190

Cited by 5 publications

(4 citation statements)

References 25 publications

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“…Although N did not affect the sensory attributes of the fruit at harvest, future work should take into account its effect on the storage potential of the produced fruits. Pascual et al (2013) observed that the N/Ca ratio in peach fruit is the variable that best correlates with the polyphenol oxidase enzyme (PPO), and the increase in the activity of this enzyme reduces the storage capacity.…”

Section: Resultsmentioning

confidence: 99%

“…It has direct effect on vegetative growth, yield and fruit quality, therefore the setting of the dose is necessary to ensure the best nutritional balance, replacing the exported quantity and maintaining the proportion between vegetative and reproductive growth. In addition to the dose, application times and the managements adopted in the culture can also affect the response of the applied nitrogen (Dolinski et al 2005;Jia et al 2006;Dolinski et al 2007;Brunetto et al 2007;Ernani et al 2008;Cuquel et al 2011;Falguera et al 2012;Olivos et al 2012;Pascual et al 2013;Souza et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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Quality peach produced in fertilizer doses of nitrogen and green pruning

et al. 2017

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ABSTRACT:The increasing consumer demand for fruit quality justifies the development of researches that combine orchards management and consumers' perception of the quality of the product. The aim of this study was to evaluate the effect of nitrogen fertilization combined with green pruning intensity on fruit quality of 'Chimarrita' from high density peach trees during three consecutive harvest seasons.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Quality peach produced in fertilizer doses of nitrogen and green pruning

et al. 2017

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“…Nitrogen stress often results in a decrease in plant biomass, leaf nitrogen content, chlorophyll content, and photosynthetic rate of different varieties of olives [ 28 ]; similar results have previously also been found in apple [ 6 ], rice [ 9 ], wheat [ 29 ], and soybean [ 1 ]. In addition to the dose, the application times and management adopted in the culture can also affect the availability of the applied N [ 30 , 31 ]. There were significant differences in the sensitivity of plants to N fertilizer at different developmental stages.…”

Section: Discussionmentioning

confidence: 99%

Transcriptome and Metabolome Studies on Pre-Harvest Nitrogen Impact on Fruit Yield and Quality of Peach (Prunus persica L.)

et al. 2022

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Pre-harvest nitrogen (N) application has been proven effective for improving fruit yield and quality. However, a full understanding of how differences in N availability/plant N status influence the transcriptome and metabolism underlying yield formation and quality remains elusive. Here, a combined analysis of the morpho-physiological qualities, transcriptome, and metabolite of peach plants was performed under different nitrogen levels at fruit pit hardening (PH) and fruit expansion (FE). Nitrogen fertilizer directly affected the yield, fruit quality, and metabolites of peach at different growth stages. RNA-Seq was used to analyze the influence of N levels at PH and FE in peach. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis showed that the differentially expressed genes (DEGs) focused on flavonoid biosynthesis and secondary metabolite biosynthetic processes. The differential metabolites among the different treatments were mainly involved in flavonoid metabolism. Transcriptome analysis showed that applying different nitrogen fertilizers at different growth stages of peach mainly affected the synthesis of flavonoids in fruit. Overall, these results suggest that the impacts of pre-harvest N application on fruit yield and quality differ between developmental stages. This research provides a full understanding of the metabolic processes underlying fruit growth and development in peach, providing a theoretical basis for the improvement of nitrogen use efficiency in peach trees.

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“…N affects vegetative growth, productivity and fruit quality directly (Falguera et al 2012;Olivos et al 2012;Pascual et al 2013;Ferreira et al 2018;Dolinski et al 2018). However, the right dose must be defined so as to ensure nutritional balance of plants and keep their ratio of vegetative and productive growth.…”

Section: Introductionmentioning

confidence: 99%

Bioactive compounds and physical-chemical characteristics of two genotypes of peach trees submitted to nitrogen fertilization

et al. 2022

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Nitrogen, which is the primary nutrient peach trees need, may affect their fruit quality. Thus, this study aimed at evaluating the effect of nitrogen fertilization on two genotypes of peach trees, regarding their fruit quality, in three consecutive crops. The experiment was carried out in the experimental area that belongs to the Embrapa Clima Temperado, located in Pelotas, Rio Grande do Sul (RS), Brazil, from 2016, 2016, 2017 and 2018. Four doses of nitrogen (0, 60, 120 and 180 Kg ha-1) and two peach tree genotypes (‘Cascata 1513’ and ‘Cascata 1067’) were used. For the fruit, we evaluated epidermis color, pulp firmness, epidermis firmness, soluble solids concentration, titratable acidity, concentration of total phenolic compounds, anthocyanins and antioxidant activity. Fruit underwent physical, chemical and bioactive compound analyses. Results showed that the highest dose of nitrogen (180 Kg ha-1) applied to the soil retards fruit ripening, while no application of nitrogen fertilization brings fruit maturation forward. Nitrogen fertilization via soil does not favor anthocyanins in fruit. Doses of 60 and 120 Kg ha-1 of nitrogen are recommended because they lead to improvement in peach color, epidermis firmness and acidity. Peach tree genotypes influence soluble solids, juice pH, phenolic compounds and antioxidant activity of their fruit.

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Relationship between polyphenol oxidase activity and nutrition, maturity and quality parameters in flat peach

Abstract: High fertilisation doses resulted in greater yields, but also with higher PPO activity, which is detrimental for the commercial chances of the fruit.

Cited by 5 publications

References 25 publications

Quality peach produced in fertilizer doses of nitrogen and green pruning

Quality peach produced in fertilizer doses of nitrogen and green pruning

Transcriptome and Metabolome Studies on Pre-Harvest Nitrogen Impact on Fruit Yield and Quality of Peach (Prunus persica L.)

Bioactive compounds and physical-chemical characteristics of two genotypes of peach trees submitted to nitrogen fertilization

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