Abstract
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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Claims 9
Claim · model-written summary
The highest nitrogen dose delayed peach ripening.
- Taxon
- peach trees
Prunus persicat0 - Treatment
- highest dose of nitrogen (180 Kg ha-1)e0
- Outcome
- fruit ripeninge0
- Direction
- retardse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest dose of nitrogen (180 Kg ha-1) applied to the soil retards fruit ripening”
t0“peach trees”
Claim · model-written summary
No nitrogen fertilization advanced peach maturation.
- Taxon
- peach treesPrunus persicat0
- Treatment
- no application of nitrogen fertilizatione0
- Outcome
- fruit maturatione0
- Direction
- brings fruit maturation forwarde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no application of nitrogen fertilization brings fruit maturation forward.”
t0“peach trees”
Claim · model-written summary
Soil nitrogen fertilization did not favor fruit anthocyanins.
- Taxon
- peach treesPrunus persicat0
- Treatment
- Nitrogen fertilization via soile0
- Outcome
- anthocyanins in fruite0
- Direction
- does not favore0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen fertilization via soil does not favor anthocyanins in fruit.”
t0“peach trees”
Claim · model-written summary
The authors recommend 60 Kg ha-1 nitrogen for peach quality.
- Taxon
- peachPrunus persicae0
- Outcome
- Doses of 60e0
- Qualifier
- Kg ha-1 of nitrogene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Doses of 60 and 120 Kg ha-1 of nitrogen are recommended because they lead to improvement in peach color, epidermis firmness and acidity.”
Claim · model-written summary
The authors recommend 120 Kg ha-1 nitrogen for peach quality.
- Taxon
- peachPrunus persicae0
- Outcome
- 120 Kg ha-1 of nitrogene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Doses of 60 and 120 Kg ha-1 of nitrogen are recommended because they lead to improvement in peach color, epidermis firmness and acidity.”
Claim · model-written summary
60 Kg ha-1 nitrogen improved peach color, epidermis firmness and acidity.
- Taxon
- peachPrunus persicae0
- Treatment
- 60e0
- Outcome
- peach color, epidermis firmness and aciditye0
- Direction
- improvemente0
- Qualifier
- Kg ha-1 of nitrogene0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Doses of 60 and 120 Kg ha-1 of nitrogen are recommended because they lead to improvement in peach color, epidermis firmness and acidity.”
Claim · model-written summary
120 Kg ha-1 nitrogen improved peach color, epidermis firmness and acidity.
- Taxon
- peachPrunus persicae0
- Treatment
- 120 Kg ha-1 of nitrogene0
- Outcome
- peach color, epidermis firmness and aciditye0
- Direction
- improvemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Doses of 60 and 120 Kg ha-1 of nitrogen are recommended because they lead to improvement in peach color, epidermis firmness and acidity.”
Claim · model-written summary
Peach genotype influenced soluble solids and juice pH.
- Taxon
- PeachPrunus persicae0
- Material
- genotypese0
- Outcome
- soluble solids, juice pHe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peach tree genotypes influence soluble solids, juice pH, phenolic compounds and antioxidant activity of their fruit.”
Claim · model-written summary
Peach genotype influenced fruit phenolics and antioxidant activity.
- Taxon
- PeachPrunus persicae0
- Material
- genotypese0
- Outcome
- phenolic compounds and antioxidant activitye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peach tree genotypes influence soluble solids, juice pH, phenolic compounds and antioxidant activity of their fruit.”
The same questions in other papers
nitrogen · quality: sugar starch · Prunus persica (peach)Results differ
5 papers in the same direction as this paper · 7 in the opposite direction
- no effect
- no effect
- no effect
9 papers more in this group
See all 13 papers →fertilization · quality: phytochemicals · Prunus persica (peach)Positive and negative results
1 paper in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.