Abstract
Abstract Effects of time and height of shading on the sunburn rate, yield and quality of pineapples were investigated in order to provide a theoretical basis for high-quality pineapple production. Golden pineapple was used as the material, and three shading times (30 d, 45 d, and 60 d after flower-fading), and the heights of 0 cm, 20 cm, and 40 cm (the distance from the top of the plant) were set. Golden pineapple’s internal and external fruit qualities were measured. The results showed that the incidence of sunburn of pineapple fruits increased with the delay of the shading time, and no differences were found among three heights at 30 d after flower fading. When pineapple plants were shaded at 30 d after flower fading and at height of 0 cm, pineapple fruits showed good external qualities, including larger fruit size, less fruit eyes, less fruit shape index, larger fruit hardness, higher edible rate and good internal qualities, including higher soluble solid content, higher soluble sugar content and lower total acidity. Shading at 30 d after flower fading and at height of 0 cm was suggested in pineapple production.
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Claims 7
Claim · model-written summary
Pineapple fruit sunburn incidence increased with later shading.
- Taxon
- pineapple
Ananas comosuse0 - Treatment
- delay of the shading timee0
- Outcome
- incidence of sunburn of pineapple fruitse0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the incidence of sunburn of pineapple fruits increased with the delay of the shading time”
Claim · model-written summary
At 30 days after flower fading, sunburn incidence did not differ among three shading heights.
- Taxon
- pineapple
Ananas comosust0 - Treatment
- three heightse0
- Outcome
- differencese0
- Direction
- no differencese0
- Qualifier
- 30 d after flower fadinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“no differences were found among three heights at 30 d after flower fading”
t0“pineapple”
Claim · model-written summary
Shading at 30 days after flower fading and 0 cm improved fruit size, fruit eyes and fruit shape index.
- Taxon
- pineapple
Ananas comosuse0 - Treatment
- shaded at 30 d after flower fading and at height of 0 cme0
- Outcome
- fruit size, less fruit eyes, less fruit shape indexe0
- Direction
- largere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“When pineapple plants were shaded at 30 d after flower fading and at height of 0 cm, pineapple fruits showed good external qualities, including larger fruit size, less fruit eyes, less fruit shape index”
Claim · model-written summary
The same shading produced larger fruit hardness and a higher edible rate.
- Taxon
- pineapple
Ananas comosuse0 - Treatment
- shaded at 30 d after flower fading and at height of 0 cme0
- Outcome
- fruit hardness, higher edible ratee0
- Direction
- largere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“When pineapple plants were shaded at 30 d after flower fading and at height of 0 cm, pineapple fruits showed good external qualities, including larger fruit size, less fruit eyes, less fruit shape index, larger fruit hardness, higher edible rate”
Claim · model-written summary
The same shading raised soluble solids and soluble sugar content.
- Taxon
- pineapple
Ananas comosuse0 - Treatment
- shaded at 30 d after flower fading and at height of 0 cme0
- Outcome
- soluble solid content, higher soluble sugar contente0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“When pineapple plants were shaded at 30 d after flower fading and at height of 0 cm, pineapple fruits showed good external qualities, including larger fruit size, less fruit eyes, less fruit shape index, larger fruit hardness, higher edible rate and good internal qualities, including higher soluble solid content, higher soluble sugar content”
Claim · model-written summary
The same shading lowered total acidity.
- Taxon
- pineapple
Ananas comosuse0 - Treatment
- shaded at 30 d after flower fading and at height of 0 cme0
- Outcome
- total aciditye0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“When pineapple plants were shaded at 30 d after flower fading and at height of 0 cm, pineapple fruits showed good external qualities, including larger fruit size, less fruit eyes, less fruit shape index, larger fruit hardness, higher edible rate and good internal qualities, including higher soluble solid content, higher soluble sugar content and lower total acidity”
Claim · model-written summary
The authors recommend shading pineapple at 30 days after flower fading and 0 cm height.
- Taxon
- pineapple
Ananas comosuse0 - Outcome
- Shading at 30 d after flower fading and at height of 0 cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Shading at 30 d after flower fading and at height of 0 cm was suggested in pineapple production.”
The same questions in other papers
shade · yield · Ananas comosus (pineapple)Results differ
3 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
1 paper more in this group
See all 5 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.