Abstract
Air temperature in greenhouse is high for tomato plants in summer. It is important to maintain optimum temperature in greenhouse for yield. The cost of whole cooling in greenhouse is so expensive that local temperature control is suggested. Our previous research showed tomato plants with root cooling at 25 C increased yields compared with those with no cooling. The chilled water can be used for root cooling system in greenhouse. The objective of this research was to evaluate the root cooling system using cold water for growing tomato plants in summer. Tomato plants were grown hydroponically in greenhouse. The cooling water flows into PVC pipe which is installed under cultivation bed. Water temperature was maintained at 12 C. Inlet and outlet water in pipe and rockwool temperatures were measured. Our results showed that the rockwool temperature was maintained around 22C with high air temperature (30C) using root cooling system.
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Claims 2
Claim · model-written summary
Earlier root cooling at 25 C increased tomato yield compared with no cooling.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- root cooling at 25 Ce0
- Outcome
- yieldse0
- Direction
- increasede0
- Comparator
- no coolinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato plants with root cooling at 25 C increased yields compared with those with no cooling”
Claim · model-written summary
Root cooling maintained rockwool temperature around 22C despite air temperature of 30C.
- Taxon
- TomatoSolanum lycopersicume1
- Treatment
- root cooling systeme0
- Outcome
- rockwool temperaturee0
- Direction
- maintainede0
- Value
- 22Ce0
- Qualifier
- high air temperature (30C)e0
- Setting
- greenhousee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rockwool temperature was maintained around 22C with high air temperature (30C) using root cooling system.”
e1“Tomato plants were grown hydroponically in greenhouse.”
The same questions in other papers
processing · yield · Solanum lycopersicum (tomato)Positive and negative results
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- negative
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See all 44 papers →processing · soil: physics · Solanum lycopersicum (tomato)Results agree
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- positive
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See all 9 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.