Abstract
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. ‘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. 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. Even in the control fruits, both seasons, the stored fruits do not show some physiological disorder as bitter pit.
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Claims 8
Claim · model-written summary
Foliar CaCl2 significantly increased calcium content in apple fruit and leaves.
- Taxon
- apples
Malus domesticat0 - Organ / stage
- fruit and leavese1
- Treatment
- Foliar applications of CaCl2e1
- Outcome
- calcium contente1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apples”
e1“Foliar applications of CaCl2 significantly increased the calcium content in fruit and leaves, but fruit quality, including firmness, was not influenced”
Claim · model-written summary
Foliar CaCl2 did not influence fruit quality, including firmness.
- Taxon
- applesMalus domesticat0
- Treatment
- Foliar applications of CaCl2e1
- Outcome
- fruit quality, including firmnesse1
- Direction
- no_changeinferrede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apples”
e1“Foliar applications of CaCl2 significantly increased the calcium content in fruit and leaves, but fruit quality, including firmness, was not influenced”
Claim · model-written summary
Soil fertilization with the nutrient mixture including CaSO4 did not influence fruit quality.
- Taxon
- applesMalus domesticat0
- Treatment
- Fertilization of soil with the mixture of nutrients, including CaSO4e1
- Outcome
- fruit qualitye1
- Direction
- no_changeinferrede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apples”
e1“Fertilization of soil with the mixture of nutrients, including CaSO4, did not influence the fruit quality”
Claim · model-written summary
Late-harvested fruit was 14.9% heavier than fruit picked at the commercial harvest date.
- Taxon
- applesMalus domesticat0
- Treatment
- Lately harvestede1
- Outcome
- heaviere1
- Direction
- heaviere1
- Value
- 14.9%e1
- Comparator
- fruit picked at the commercial harvest datee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apples”
e1“Lately harvested fruit was 14.9% heavier but 17.1% softer than fruit picked at the commercial harvest date”
Claim · model-written summary
Late-harvested fruit was 17.1% softer than fruit picked at the commercial harvest date.
- Taxon
- applesMalus domesticat0
- Treatment
- Lately harvestede1
- Outcome
- softere1
- Direction
- softere1
- Value
- 17.1%e1
- Comparator
- fruit picked at the commercial harvest datee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apples”
e1“Lately harvested fruit was 14.9% heavier but 17.1% softer than fruit picked at the commercial harvest date”
Claim · model-written summary
Delaying fruit harvest reduced the storability of apple fruit by about 43 days.
- Taxon
- applesMalus domesticat0
- Treatment
- Delaying of fruit harveste1
- Outcome
- storability of fruite1
- Direction
- reducede1
- Value
- about 43 de1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apples”
e1“Delaying of fruit harvest reduced about 43 d the storability of fruit”
Claim · model-written summary
The authors conclude that the relative softness of apples grown in Mexico is not related to their calcium content.
- Taxon
- applesMalus domesticat0
- Compound
- calciume1
- Outcome
- relative softnesse1
- Direction
- no_changeinferrede1
- Setting
- Mexicoe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apples”
e1“the relative softness of apples grown in Mexico is not related with its calcium content”
Claim · model-written summary
Even in control fruits, in both seasons, stored fruits did not show physiological disorders such as bitter pit.
- Taxon
- applesMalus domesticat0
- Outcome
- physiological disorder as bitter pite1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apples”
e1“the stored fruits do not show some physiological disorder as bitter pit”
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See all 116 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.