Abstract
The ambient temperature and evaporative demand in the Mediterranean greenhouses are excessively elevated during the high solar radiation season, which has harmful effects on growth and development of the crops, decreasing yield and quality of the products. The current cultivation structures have very poorly efficient natural ventilation systems, therefore making necessary the use of some additional cooling technique. The vast majority of growers turn to shading the greenhouse cover by means of whitening, a fix shading method that leads to considerable losses of the productive potential of the crop. The objective of the present study was to compare the yield response of a tomato crop ('Bigram') grown in coir substrate under two different greenhouse shading systems: traditional whitening (R) and mobile shading diffusive screen system (HS) located inside the greenhouse. The effect of these two different shading systems on the water use efficiency was also evaluated. At the end of the crop cycle, the incident and intercepted PAR were respectively 31.2 and 16.4% higher in the HS greenhouse. The crop grown under the mobile shading obtained an increase of 25% in the marketable yield in relation to the greenhouse with traditional whitening, which at the end of the evaluated period involved 2 more harvested trusses m-2, caused by a shorter period of fruit growth and development. The mobile shading system proved to improve the climate in Mediterranean greenhouses and also the water use efficiency.
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Claims 7
Claim · model-written summary
Incident PAR was 31.2% higher in the mobile-shading greenhouse at the end of the tomato crop cycle.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- HS greenhousee0
- Outcome
- incidente0
- Direction
- highere0
- Value
- 31.2e0
- Qualifier
- At the end of the crop cyclee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the end of the crop cycle, the incident and intercepted PAR were respectively 31.2 and 16.4% higher in the HS greenhouse.”
t0“tomato crop”
Claim · model-written summary
Intercepted PAR was 16.4% higher in the mobile-shading greenhouse at the end of the tomato crop cycle.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- HS greenhousee0
- Outcome
- intercepted PARe0
- Direction
- highere0
- Value
- 16.4%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the end of the crop cycle, the incident and intercepted PAR were respectively 31.2 and 16.4% higher in the HS greenhouse.”
t0“tomato crop”
Claim · model-written summary
Mobile shading increased marketable tomato yield by 25% relative to traditional whitening.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- mobile shadinge0
- Outcome
- marketable yielde0
- Direction
- increasee0
- Value
- 25%e0
- Comparator
- traditional whiteninge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The crop grown under the mobile shading obtained an increase of 25% in the marketable yield in relation to the greenhouse with traditional whitening”
t0“tomato crop”
Claim · model-written summary
Mobile shading yielded two more harvested tomato trusses per square meter by the end of the evaluation.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- mobile shadingt0
- Outcome
- harvested trussese0
- Direction
- moree0
- Value
- 2 more harvested trusses m-2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which at the end of the evaluated period involved 2 more harvested trusses m-2, caused by a shorter period of fruit growth and development.”
t0“Mobile shading versus whitewashing: evaluation of the agronomic response of a tomato crop”
Claim · model-written summary
Mobile shading shortened tomato fruit growth and development time.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Mobile shadingt0
- Outcome
- period of fruit growth and developmente0
- Direction
- shortere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“caused by a shorter period of fruit growth and development.”
t0“Mobile shading versus whitewashing: evaluation of the agronomic response of a tomato crop”
Claim · model-written summary
The mobile shading system improved the greenhouse climate for tomato.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- mobile shading systeme0
- Outcome
- climatee0
- Direction
- improvee0
- Setting
- Mediterranean greenhousese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mobile shading system proved to improve the climate in Mediterranean greenhouses and also the water use efficiency.”
t0“tomato crop”
Claim · model-written summary
The mobile shading system improved tomato crop water use efficiency.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- mobile shading systeme0
- Outcome
- water use efficiencye0
- Direction
- improvee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mobile shading system proved to improve the climate in Mediterranean greenhouses and also the water use efficiency.”
t0“tomato crop”
The same questions in other papers
shade · quality: postharvest · Solanum lycopersicum (tomato)Results differ
10 papers in the same direction as this paper · 2 in the opposite direction
- positive
- negative
- no effect
9 papers more in this group
See all 13 papers →shade · growth · Solanum lycopersicum (tomato)Results differ
20 papers in the same direction as this paper · 6 in the opposite direction
- positive
- negative
- negative
23 papers more in this group
See all 27 papers →shade · physiology: water · Solanum lycopersicum (tomato)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
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.