Abstract
This experiment was conducted to investigate the effect of greenhouse orientation on the microclimate of greenhouse and the growth and yield of tomato (Lycopersicon esculentum) cv ‘Momotaro-Yoku’ and oriental melon (Cucumis melo) cv ‘Obokggul’. The temperature in a closed greenhouse was higher in north-south orientation than that in east-west orientation because the angle of incidence became larger in north-south orientation with increase of solar altitude. The number of air changes and the variation of temperature became larger in east-west orientation than those in north-south orientation when the ventilation was set to start at 28℃. Relative humidity and soil temperature were not significantly different between the two greenhouse orientations. In tomato-raising greenhouse, the light intensity inside furrows was weaker in the early morning and the late afternoon in north-south orientation than that in east-west orientation due to shadows near plants. There was no significant difference in light intensity at midday between the greenhouse orientations. The leaf area exposed to direct sunlight was greater in north-south orientation than that in east-west orientation and the leaves of middle and low parts in north side of plants could not receive direct sunlight due to a low angle of azimuth. In north-south orientation, as ripening was promoted, early yields of tomato were obtained. It was considered that photosynthesis rate was better because temperature rose quickly early in the morning reducing the stresses induced by temperature variation and more leaves of plants can receive direct sunlight. In oriental melon-raising greenhouse, ripening time and yield were not significantly different between the greenhouse orientations because thermal stress by poor ventilation and mutual shading between plants did not occur so severely.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
Temperature in a closed greenhouse was higher under north-south than east-west orientation.
- Taxon
- tomato and oriental melon
.jpg?width=60)
Cucumis melo
Solanum lycopersicumt0 - Treatment
- north-south orientatione1
- Outcome
- temperature in a closed greenhousee1
- Direction
- highere1
- Comparator
- east-west orientatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“tomato and oriental melon”
e1“The temperature in a closed greenhouse was higher in north-south orientation than that in east-west orientation”
Claim · model-written summary
Air changes and temperature variation were larger under east-west than north-south orientation when ventilation started at 28 degrees C.
- Taxon
- tomato and oriental melonCucumis meloSolanum lycopersicumt0
- Treatment
- east-west orientatione2
- Outcome
- number of air changes and the variation of temperaturee2
- Direction
- largere2
- Qualifier
- when the ventilation was set to start at 28℃e2
- Comparator
- north-south orientatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato and oriental melon”
e2“The number of air changes and the variation of temperature became larger in east-west orientation than those in north-south orientation when the ventilation was set to start at 28℃”
Claim · model-written summary
Relative humidity and soil temperature did not differ significantly between the two greenhouse orientations.
- Taxon
- tomato and oriental melonCucumis meloSolanum lycopersicumt0
- Treatment
- greenhouse orientatione3
- Outcome
- Relative humidity and soil temperaturee3
- Direction
- not significantly differente3
- Comparator
- two greenhouse orientationse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato and oriental melon”
e3“Relative humidity and soil temperature were not significantly different between the two greenhouse orientations”
Claim · model-written summary
Light intensity inside furrows was weaker in the early morning and late afternoon under north-south than east-west orientation in the tomato greenhouse.
- Taxon
- tomato and oriental melonCucumis meloSolanum lycopersicumt0
- Treatment
- north-south orientatione4
- Outcome
- light intensity inside furrowse4
- Direction
- weakere4
- Qualifier
- in the early morning and the late afternoone4
- Comparator
- east-west orientatione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato and oriental melon”
e4“the light intensity inside furrows was weaker in the early morning and the late afternoon in north-south orientation than that in east-west orientation”
Claim · model-written summary
Light intensity at midday did not differ significantly between the greenhouse orientations.
- Taxon
- tomato and oriental melonCucumis meloSolanum lycopersicumt0
- Treatment
- greenhouse orientatione5
- Outcome
- light intensity at middaye5
- Direction
- no significant differencee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato and oriental melon”
e5“There was no significant difference in light intensity at midday between the greenhouse orientations”
Claim · model-written summary
Leaf area exposed to direct sunlight was greater under north-south than east-west orientation.
- Taxon
- tomato and oriental melonCucumis meloSolanum lycopersicumt0
- Treatment
- north-south orientatione6
- Outcome
- leaf area exposed to direct sunlighte6
- Direction
- greatere6
- Comparator
- east-west orientatione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato and oriental melon”
e6“The leaf area exposed to direct sunlight was greater in north-south orientation than that in east-west orientation”
Claim · model-written summary
Leaves of the middle and low parts on the north side of plants could not receive direct sunlight because of a low sun azimuth angle.
- Taxon
- tomato and oriental melonCucumis meloSolanum lycopersicumt0
- Organ / stage
- leaves of middle and low parts in north side of plantse7
- Outcome
- receive direct sunlighte7
- Qualifier
- due to a low angle of azimuthe7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato and oriental melon”
e7“the leaves of middle and low parts in north side of plants could not receive direct sunlight due to a low angle of azimuth”
Claim · model-written summary
Early yields of tomato were obtained under north-south orientation as ripening was promoted.
- Taxon
- tomato and oriental melonCucumis meloSolanum lycopersicumt0
- Treatment
- north-south orientatione7
- Outcome
- early yieldse7
- Qualifier
- as ripening was promotede7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato and oriental melon”
e7“In north-south orientation, as ripening was promoted, early yields of tomato were obtained”
Claim · model-written summary
Photosynthesis rate was considered better under north-south orientation because temperature rose quickly early in the morning.
- Taxon
- tomato and oriental melonCucumis meloSolanum lycopersicumt0
- Outcome
- photosynthesis ratee6
- Qualifier
- temperature rose quickly early in the morninge6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato and oriental melon”
e6“It was considered that photosynthesis rate was better because temperature rose quickly early in the morning reducing the stresses induced by temperature variation”
Claim · model-written summary
Ripening time and yield of oriental melon did not differ significantly between the greenhouse orientations.
- Taxon
- oriental melonCucumis meloe1
- Treatment
- greenhouse orientatione1
- Outcome
- ripening time and yielde1
- Direction
- not significantly differente1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In oriental melon-raising greenhouse, ripening time and yield were not significantly different between the greenhouse orientations”
The same questions in other papers
cultivation system · soil: physics · Solanum lycopersicum (tomato)Positive and negative results
2 papers in the same direction as this paper · 5 reporting no difference from an alternative
- positive
- positive
- positive
4 papers more in this group
See all 8 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.