Abstract
Vapor pressure deficit (VPD) has been identified as an increasingly important driver of plant functioning, and thus VPD regulation has been widely recognized as having the potential to improve plant growth and productivity. We monitored the trend of the VPD and observed the effect of VPD regulation by irrigating the water using VPD control equipment that automatically inserts fogging water when the VPD exceeds 1.2 kPa. Tomato crops were planted in soil, coconut fiber, and soil above poly vinyl chloride trays to observe the effectiveness of VPD regulation and the planting environment. As a result, there was no significant difference in the effect of VPD regulation on the overall growth stages of tomato crops whether they grew in soil, trays with soil, or trays with coconut fiber. However, in the case of crops grown in a tray with coconut fiber, the initial growth was similar, but the total yield and total commercial yield showed approximately 89% and 88% improvement, respectively. The number of total fruits was also improved by 49% on average.
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Claims 4
Claim · model-written summary
VPD regulation showed no significant growth difference across the three planting environments.
- Taxon
- tomato crops
Solanum lycopersicume0 - Treatment
- VPD regulatione0
- Outcome
- overall growth stagese0
- Direction
- no significant differencee0
- Comparator
- soil, trays with soil, or trays with coconut fibere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no significant difference in the effect of VPD regulation on the overall growth stages of tomato crops whether they grew in soil, trays with soil, or trays with coconut fiber”
Claim · model-written summary
The coconut fiber tray crop had about 89 percent higher total yield.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Treatment
- tray with coconut fibere0
- Outcome
- total yielde0
- Direction
- improvemente0
- Value
- 89%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“crops grown in a tray with coconut fiber, the initial growth was similar, but the total yield and total commercial yield showed approximately 89% and 88% improvement, respectively”
t0“Tomato Plants”
Claim · model-written summary
The coconut fiber tray crop had about 88 percent higher commercial yield.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Treatment
- tray with coconut fibere0
- Outcome
- total commercial yielde0
- Direction
- improvemente0
- Value
- 88%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“crops grown in a tray with coconut fiber, the initial growth was similar, but the total yield and total commercial yield showed approximately 89% and 88% improvement, respectively”
t0“Tomato Plants”
Claim · model-written summary
Total fruit number improved by an average of 49 percent.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Outcome
- number of total fruitse0
- Direction
- improvede0
- Value
- 49%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of total fruits was also improved by 49% on average”
t0“Tomato Plants”
The same questions in other papers
humidity · growth · Solanum lycopersicum (tomato)Positive and negative results
11 papers in the same direction as this paper · 10 in the opposite direction
- no effect
- positive
- positive
18 papers more in this group
See all 22 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.