Abstract
This study was carried out to investigate the effects of soil depth and planting density on the growth of lettuce, crown daisy, and strawberry on a rooftop condition using artificial soil as a growth media. The vegetable crops showed better growth for plant height (cm), plant width (cm), plant fresh weight (g), and Fo, Fm and Fv/m on 20cm depth soil than 10cm depth soil except strawberry. Planting density of and did not show significant differences on the growth of the crops. Soil moisture content and EC were low for 10cm depth soil in lettuce plots, whereas there was no significant differences on soil moisture and EC between two soil depth in strawberry plots. Hunter's L, a, and b values showed the leaf color of lettuce dark green on 20cm depth soil and reddish on 10cm depth soil. Results showed that soil depth suitable for crop growth on rooftop conditions was 20cm rather than 10cm. Growth response of the crops showed no significant difference between and , indicating that planting density of 64 could be practiced on rooftop conditions. Lettuce growth rapidly changed in control treatment in which leaves were not pinched out, while slowly changed in plants which leaves were periodically pinched out. In the case of control plot, it was impossible to harvest because withering of lower leaves after blossom on June 22. The plant of crown daisy in which pinching was not conducted, blossomed on June 7, and the plants were removed since its aesthetical value was lost. Strawberry seemed to be a suitable vegetable crop for rooftop conditions based on its high covering rate and extended growth period until late October. The soil depth 20cm and planting density 64 were suitable for vegetable crops on green roof system using artificial soil.
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 12
Claim · model-written summary
At 20cm soil depth, vegetable crops other than strawberry had better height, width, fresh weight and fluorescence measures than at 10cm.
- Taxon
- lettuce, crown daisy, and strawberry
_single2.jpg?width=60)
Fragaria ×ananassa
Lactuca sativa
Glebionis coronariae1 - Treatment
- 20cm depth soile0
- Outcome
- plant height (cm), plant width (cm), plant fresh weight (g), and Fo, Fm and Fv/me0
- Direction
- bettere0
- Qualifier
- except strawberrye0
- Comparator
- 10cm depth soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“The vegetable crops showed better growth for plant height (cm), plant width (cm), plant fresh weight (g), and Fo, Fm and Fv/m on 20cm depth soil than 10cm depth soil except strawberry”
e1“lettuce, crown daisy, and strawberry”
Claim · model-written summary
Planting density had no significant effect on crop growth.
- Taxon
- lettuce, crown daisy, and strawberryFragaria ×ananassaLactuca sativaGlebionis coronariae1
- Treatment
- Planting densitye0
- Outcome
- growth of the cropse0
- Direction
- did not show significant differencese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Planting density of and did not show significant differences on the growth of the crops”
e1“lettuce, crown daisy, and strawberry”
Claim · model-written summary
Lettuce plots at 10cm had low soil moisture and EC.
- Taxon
- lettuceLactuca sativae0
- Treatment
- 10cm depth soile0
- Outcome
- Soil moisture content and ECe0
- Direction
- lowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil moisture content and EC were low for 10cm depth soil in lettuce plots”
Claim · model-written summary
Strawberry plots showed no significant soil moisture or EC difference between depths.
- Taxon
- strawberryFragaria ×ananassae0
- Treatment
- two soil depthe0
- Outcome
- soil moisture and ECe0
- Direction
- no significant differencese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no significant differences on soil moisture and EC between two soil depth in strawberry plots”
Claim · model-written summary
Lettuce leaves were dark green at 20cm soil depth.
- Taxon
- lettuceLactuca sativae0
- Treatment
- 20cm depth soile0
- Outcome
- leaf color of lettuce dark greene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the leaf color of lettuce dark green on 20cm depth soil”
Claim · model-written summary
Lettuce leaves were reddish at 10cm soil depth.
- Taxon
- lettuceLactuca sativae1
- Treatment
- 10cm depth soile0
- Outcome
- reddishe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reddish on 10cm depth soil”
e1“leaf color of lettuce”
Claim · model-written summary
The authors favored 20cm over 10cm rooftop soil depth for crop growth.
- Taxon
- lettuce, crown daisy, and strawberryFragaria ×ananassaLactuca sativaGlebionis coronariae1
- Treatment
- 20cme0
- Outcome
- soil depth suitable for crop growth on rooftop conditionse0
- Comparator
- 10cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil depth suitable for crop growth on rooftop conditions was 20cm rather than 10cm”
e1“lettuce, crown daisy, and strawberry”
Claim · model-written summary
The authors judged planting density 64 practicable for rooftop crops.
- Taxon
- lettuce, crown daisy, and strawberryFragaria ×ananassaLactuca sativaGlebionis coronariae1
- Outcome
- planting density of 64 could be practicede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“planting density of 64 could be practiced on rooftop conditions”
e1“lettuce, crown daisy, and strawberry”
Claim · model-written summary
Unpinched lettuce growth changed rapidly relative to periodically pinched lettuce.
- Taxon
- LettuceLactuca sativae0
- Treatment
- leaves were not pinched oute0
- Outcome
- Lettuce growthe0
- Direction
- rapidly changede0
- Comparator
- leaves were periodically pinched oute0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lettuce growth rapidly changed in control treatment in which leaves were not pinched out, while slowly changed in plants which leaves were periodically pinched out”
Claim · model-written summary
Unpinched lettuce could not be harvested because lower leaves withered after flowering on June 22.
- Taxon
- LettuceLactuca sativae1
- Outcome
- impossible to harveste0
- Qualifier
- withering of lower leaves after blossom on June 22e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the case of control plot, it was impossible to harvest because withering of lower leaves after blossom on June 22”
e1“Lettuce growth”
Claim · model-written summary
Unpinched crown daisy flowered on June 7 and was removed after losing aesthetic value.
- Taxon
- crown daisyGlebionis coronariae0
- Treatment
- pinching was not conductede0
- Outcome
- blossomed on June 7e0
- Qualifier
- aesthetical value was loste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plant of crown daisy in which pinching was not conducted, blossomed on June 7, and the plants were removed since its aesthetical value was lost”
Claim · model-written summary
Strawberry was judged suitable for rooftop growing because of high cover and growth through late October.
- Taxon
- StrawberryFragaria ×ananassae0
- Outcome
- suitable vegetable crop for rooftop conditionse0
- Qualifier
- high covering rate and extended growth period until late Octobere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Strawberry seemed to be a suitable vegetable crop for rooftop conditions based on its high covering rate and extended growth period until late October”
The same questions in other papers
density · growth · Fragaria x ananassa (strawberry)Positive and negative results
1 paper in the same direction as this paper · 9 in the opposite direction
- positive
- positive
- positive
7 papers more in this group
See all 11 papers →density · growth · Lactuca sativa (garden lettuce)Positive and negative results
5 papers in the same direction as this paper · 9 in the opposite direction
- positive
- positive
- positive
11 papers more in this group
See all 15 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.