Abstract
Objective: Apples cultivated in Mexico generally are smaller and softer than those produced in other geographical latitudes considered as optimal for apple production. The aim of this evaluation was determine the effect of applications with calcium, nitrogen, potassium, magnesium, sulfur and naphthaleneacetic acid (NAA), as well as the harvest date on the quality of apple fruits. Methodology ‘Golden Smoothie’ apple trees were treated foliarly with CaCl2 with and without NAA, and with a mixture of N, K, Mg and S or gypsum applied to soil for two years. Apples were harvested at 141 (regular harvest date), 161 (mid-late harvest) and 171 days (late harvest) after full bloom (DAFB) and evaluated for quality at harvest time and during their storage at 0°C for up to 179 days. Results: Foliar applications of CaCl2 significantly increased the calcium content in fruit and leaves, but fruit quality, including firmness, was not influenced. Fertilization of soil with the mixture of nutrients, including CaSO4, did not influence the fruit quality. Lately harvested fruit was 14.9% heavier but 17.1% softer than fruit picked at the commercial harvest date. Delaying of fruit harvest reduced about 43 d the storability of fruit. Based in these results, the relative softness of apples grown in Mexico is not related with its calcium content, hence unlikely to be overcome with the application of this mineral. Conclusions: Even in the control fruits, both seasons, the stored fruits do not show some physiological disorder as bitter pit
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Claims 7
Claim · model-written summary
Foliar CaCl2 significantly increased calcium content in apple fruit and leaves.
- Taxon
- apple trees
Malus domesticae1 - Treatment
- Foliar applications of CaCl2e0
- Outcome
- calcium content in fruit and leavese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar applications of CaCl2 significantly increased the calcium content in fruit and leaves”
e1“‘Golden Smoothie’ apple trees were treated foliarly with CaCl2”
Claim · model-written summary
Foliar CaCl2 did not influence fruit quality, including firmness.
- Taxon
- apple treesMalus domesticae2
- Treatment
- Foliar applications of CaCl2e1
- Outcome
- fruit quality, including firmnesse0
- Direction
- not influencede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruit quality, including firmness, was not influenced”
e1“Foliar applications of CaCl2 significantly increased”
e2“‘Golden Smoothie’ apple trees”
Claim · model-written summary
Soil fertilization with the nutrient mixture including CaSO4 did not influence apple fruit quality.
- Taxon
- apple treesMalus domesticae1
- Treatment
- Fertilization of soil with the mixture of nutrients, including CaSO4e0
- Outcome
- fruit qualitye0
- Direction
- did not influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilization of soil with the mixture of nutrients, including CaSO4, did not influence the fruit quality”
e1“‘Golden Smoothie’ apple trees”
Claim · model-written summary
Late harvested apples were 14.9% heavier than commercial harvest fruit.
- Taxon
- apple treesMalus domesticae1
- Treatment
- Lately harvestede0
- Outcome
- fruite0
- Direction
- heaviere0
- Value
- 14.9%e0
- Comparator
- fruit picked at the commercial harvest datee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lately harvested fruit was 14.9% heavier but 17.1% softer than fruit picked at the commercial harvest date”
e1“‘Golden Smoothie’ apple trees”
Claim · model-written summary
Late harvested apples were 17.1% softer than commercial harvest fruit.
- Taxon
- apple treesMalus domesticae1
- Treatment
- Lately harvestede0
- Outcome
- fruite0
- Direction
- softere0
- Value
- 17.1%e0
- Comparator
- fruit picked at the commercial harvest datee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lately harvested fruit was 14.9% heavier but 17.1% softer than fruit picked at the commercial harvest date”
e1“‘Golden Smoothie’ apple trees”
Claim · model-written summary
Delaying fruit harvest reduced apple storability by about 43 days.
- Taxon
- apple treesMalus domesticae1
- Treatment
- Delaying of fruit harveste0
- Outcome
- storability of fruite0
- Direction
- reducede0
- Value
- 43 de0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Delaying of fruit harvest reduced about 43 d the storability of fruit”
e1“‘Golden Smoothie’ apple trees”
Claim · model-written summary
Stored control apples showed no physiological disorder such as bitter pit in either season.
- Taxon
- apple treesMalus domesticae2
- Outcome
- physiological disorder as bitter pite0
- Direction
- do not showe0
- Qualifier
- Even in the control fruits, both seasonse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the stored fruits do not show some physiological disorder as bitter pit”
e1“Even in the control fruits, both seasons”
e2“‘Golden Smoothie’ apple trees”
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