Abstract
Long-day flowering of Pharbitis nil, dwarf strain Kidachi, at 20°C was greatly influenced by the size of the culture vessel and the number of plants per vessel. The smaller the vessel, the greater the flowering response. The volume of nutrient solution per plant was not decisive for long-day flowering. For instance, plants cultured singly in 200-ml beakers flowered, but those cultured in 5,000-ml vessels (33×26×11.5 cm, 48 plants per vessel) did not, even though there was only about 100 ml of nutrient solution per plant. Long-day flowering was always accompanied by the suppression of root elongation, but not by a decrease in the dry weight of roots or shoots, or in the rate at which the leaf primordia appeared (plastochrone). Aeration of the nutrient solution or culture in vermiculite promoted root elongation even in small vessels, thereby inhibiting long-day flowering. Thus the suppression of root elongation seems to be necessary for long-day flowering. Removal of the roots or cotyledons; however, suppressed long-day flowering even when root elongation was inhibited by culture in small vessels. When plants were cultured at 24°C, suppression of root elongation (culture in a small vessel) did not induce long-day flowering; but, short-day treatment induced flowering without suppressing root elongation.
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Claims 18
Claim · model-written summary
Vessel size and plant number greatly influenced long-day flowering at 20°C.
- Taxon
- Pharbitis nil
Ipomoea nilt0 - Material
- Kidachie0
- Outcome
- Long-day floweringe0
- Qualifier
- size of the culture vessel and the number of plants per vessele0
- Setting
- 20°Ce0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Long-day flowering of Pharbitis nil, dwarf strain Kidachi, at 20°C was greatly influenced by the size of the culture vessel and the number of plants per vessel”
t0“Pharbitis nil”
Claim · model-written summary
Smaller vessels gave greater flowering response.
- Taxon
- Pharbitis nilIpomoea nilt0
- Treatment
- smaller the vessele0
- Outcome
- flowering responsee0
- Direction
- greatere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The smaller the vessel, the greater the flowering response”
t0“Pharbitis nil”
Claim · model-written summary
Nutrient solution volume per plant was not decisive for long-day flowering.
- Taxon
- Pharbitis nilIpomoea nilt0
- Treatment
- volume of nutrient solution per plante0
- Outcome
- long-day floweringe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The volume of nutrient solution per plant was not decisive for long-day flowering”
t0“Pharbitis nil”
Claim · model-written summary
Plants in 200-ml beakers flowered.
- Taxon
- Pharbitis nilIpomoea nilt0
- Treatment
- 200-ml beakerse0
- Outcome
- flowerede0
- Comparator
- 5,000-ml vesselse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plants cultured singly in 200-ml beakers flowered, but those cultured in 5,000-ml vessels (33×26×11.5 cm, 48 plants per vessel) did not”
t0“Pharbitis nil”
Claim · model-written summary
Plants in 5,000-ml vessels did not.
- Taxon
- Pharbitis nilIpomoea nilt0
- Treatment
- 5,000-ml vesselse0
- Outcome
- did note0
- Comparator
- 200-ml beakerse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plants cultured singly in 200-ml beakers flowered, but those cultured in 5,000-ml vessels (33×26×11.5 cm, 48 plants per vessel) did not”
t0“Pharbitis nil”
Claim · model-written summary
Long-day flowering coincided with suppressed root elongation.
- Taxon
- Pharbitis nilIpomoea nilt0
- Organ / stage
- rootse0
- Outcome
- root elongatione0
- Direction
- suppressione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Long-day flowering was always accompanied by the suppression of root elongation, but not by a decrease in the dry weight of roots or shoots, or in the rate at which the leaf primordia appeared (plastochrone)”
t0“Pharbitis nil”
Claim · model-written summary
Long-day flowering did not accompany a decrease in dry weight of roots or shoots.
- Taxon
- Pharbitis nilIpomoea nilt0
- Organ / stage
- roots or shootse0
- Outcome
- dry weight of roots or shootse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Long-day flowering was always accompanied by the suppression of root elongation, but not by a decrease in the dry weight of roots or shoots, or in the rate at which the leaf primordia appeared (plastochrone)”
t0“Pharbitis nil”
Claim · model-written summary
Long-day flowering did not accompany a decrease in rate at which the leaf primordia appeared.
- Taxon
- Pharbitis nilIpomoea nilt0
- Organ / stage
- leaf primordiae0
- Outcome
- rate at which the leaf primordia appearede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Long-day flowering was always accompanied by the suppression of root elongation, but not by a decrease in the dry weight of roots or shoots, or in the rate at which the leaf primordia appeared (plastochrone)”
t0“Pharbitis nil”
Claim · model-written summary
Aeration of the nutrient solution promoted root elongation.
- Taxon
- Pharbitis nilIpomoea nilt0
- Treatment
- Aeration of the nutrient solutione0
- Outcome
- root elongatione0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aeration of the nutrient solution or culture in vermiculite promoted root elongation even in small vessels, thereby inhibiting long-day flowering”
t0“Pharbitis nil”
Claim · model-written summary
Aeration of the nutrient solution inhibited long-day flowering.
- Taxon
- Pharbitis nilIpomoea nilt0
- Treatment
- Aeration of the nutrient solutione0
- Outcome
- long-day floweringe0
- Direction
- inhibitinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aeration of the nutrient solution or culture in vermiculite promoted root elongation even in small vessels, thereby inhibiting long-day flowering”
t0“Pharbitis nil”
Claim · model-written summary
culture in vermiculite promoted root elongation.
- Taxon
- Pharbitis nilIpomoea nilt0
- Treatment
- culture in vermiculitee0
- Outcome
- root elongatione0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aeration of the nutrient solution or culture in vermiculite promoted root elongation even in small vessels, thereby inhibiting long-day flowering”
t0“Pharbitis nil”
Claim · model-written summary
culture in vermiculite inhibited long-day flowering.
- Taxon
- Pharbitis nilIpomoea nilt0
- Treatment
- culture in vermiculitee0
- Outcome
- long-day floweringe0
- Direction
- inhibitinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aeration of the nutrient solution or culture in vermiculite promoted root elongation even in small vessels, thereby inhibiting long-day flowering”
t0“Pharbitis nil”
Claim · model-written summary
Suppression of root elongation seems necessary for long-day flowering.
- Taxon
- Pharbitis nilIpomoea nilt0
- Outcome
- long-day floweringe0
- Qualifier
- suppression of root elongatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“suppression of root elongation seems to be necessary for long-day flowering”
t0“Pharbitis nil”
Claim · model-written summary
Removal of roots suppressed long-day flowering in small vessels.
- Taxon
- Pharbitis nilIpomoea nilt0
- Organ / stage
- rootse0
- Treatment
- Removal of the rootse0
- Outcome
- long-day floweringe0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Removal of the roots or cotyledons; however, suppressed long-day flowering even when root elongation was inhibited by culture in small vessels”
t0“Pharbitis nil”
Claim · model-written summary
Removal of cotyledons suppressed long-day flowering in small vessels.
- Taxon
- Pharbitis nilIpomoea nilt0
- Organ / stage
- cotyledonse0
- Treatment
- cotyledonse0
- Outcome
- long-day floweringe0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Removal of the roots or cotyledons; however, suppressed long-day flowering even when root elongation was inhibited by culture in small vessels”
t0“Pharbitis nil”
Claim · model-written summary
At 24°C, suppression of root elongation in a small vessel did not induce long-day flowering.
- Taxon
- Pharbitis nilIpomoea nilt0
- Treatment
- culture in a small vessele0
- Outcome
- long-day floweringe0
- Setting
- 24°Ce0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When plants were cultured at 24°C, suppression of root elongation (culture in a small vessel) did not induce long-day flowering; but, short-day treatment induced flowering without suppressing root elongation”
t0“Pharbitis nil”
Claim · model-written summary
At 24°C, short-day treatment induced flowering.
- Taxon
- Pharbitis nilIpomoea nilt0
- Treatment
- short-day treatmente0
- Outcome
- floweringe0
- Direction
- inducede0
- Setting
- 24°Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When plants were cultured at 24°C, suppression of root elongation (culture in a small vessel) did not induce long-day flowering; but, short-day treatment induced flowering without suppressing root elongation”
t0“Pharbitis nil”
Claim · model-written summary
At 24°C, short-day treatment did not suppress root elongation.
- Taxon
- Pharbitis nilIpomoea nilt0
- Treatment
- short-day treatmente0
- Outcome
- root elongatione0
- Setting
- 24°Ce0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When plants were cultured at 24°C, suppression of root elongation (culture in a small vessel) did not induce long-day flowering; but, short-day treatment induced flowering without suppressing root elongation”
t0“Pharbitis nil”
The same questions in other papers
light · growth · Ipomoea nil (Japanese morning glory)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
1 paper more in this group
See all 5 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.