Abstract
Kalanchoe blossfeldiana variety Tom Thumb was treated photoperiodically in regular and CO 2 -free air and examined at two widely separated time intervals for interrelationships among flowering, succulence, capacity for CO 2 dark-fixation, and organic acid formation. These processes and leaf thickening are all under photoperiodic control and increase with increasing numbers of short-day treatments. They also occur in a CO 2 -free atmosphere on 9-hour photoperiods although CO 2 dark-fixation and organic acid formation are limited to the low level of the long-day treated plants at 5 weeks' time. Only CO 2 dark-fixation and organic acid formation appear to be interrelated and apparently utilize respiratory CO 2 if treated in a CO 2 -free atmosphere. This capacity to use respiratory CO 2 increases with maturity of the plants. Flowering does not control the development of succulence, organic acid formation, or the capacity for CO 2 dark-fixation. Likewise, capacity for dark-fixation and organic acid formation do not control flowering and can occur in vegetative Tom Thumb plants that do not exhibit appreciable succulence.
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Claims 8
Claim · model-written summary
Flowering, succulence, dark fixation, organic acid formation and leaf thickening increased with more short-day treatments.
- Taxon
- Kalanchoe blossfeldiana variety Tom Thumb
_Kalanchoe_blossfeldiana_-_inflorescence.jpg?width=60)
Kalanchoe blossfeldianae2 - Treatment
- increasing numbers of short-day treatmentse0
- Outcome
- flowering, succulence, capacity for CO 2 dark-fixation, and organic acid formatione1
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Kalanchoe_blossfeldiana_-_inflorescence.jpg?width=500)
Verbatim
e0“These processes and leaf thickening are all under photoperiodic control and increase with increasing numbers of short-day treatments”
e1“flowering, succulence, capacity for CO 2 dark-fixation, and organic acid formation”
e2“Kalanchoe blossfeldiana variety Tom Thumb”
Claim · model-written summary
These processes occurred under carbon dioxide-free air with 9-hour photoperiods.
- Taxon
- Kalanchoe blossfeldiana variety Tom ThumbKalanchoe blossfeldianae2
- Treatment
- CO 2 -free atmosphere on 9-hour photoperiodse0
- Outcome
- flowering, succulence, capacity for CO 2 dark-fixation, and organic acid formatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“They also occur in a CO 2 -free atmosphere on 9-hour photoperiods”
e1“flowering, succulence, capacity for CO 2 dark-fixation, and organic acid formation”
e2“Kalanchoe blossfeldiana variety Tom Thumb”
Claim · model-written summary
Carbon dioxide dark fixation remained at the low long-day level after five weeks in carbon dioxide-free air.
- Taxon
- Kalanchoe blossfeldiana variety Tom ThumbKalanchoe blossfeldianae1
- Outcome
- CO 2 dark-fixatione0
- Direction
- limited to the low levele0
- Qualifier
- 5 weeks' timee0
- Comparator
- long-day treated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CO 2 dark-fixation and organic acid formation are limited to the low level of the long-day treated plants at 5 weeks' time”
e1“Kalanchoe blossfeldiana variety Tom Thumb”
Claim · model-written summary
Organic acid formation remained at the low long-day level after five weeks in carbon dioxide-free air.
- Taxon
- Kalanchoe blossfeldiana variety Tom ThumbKalanchoe blossfeldianae1
- Outcome
- organic acid formatione0
- Direction
- limited to the low levele0
- Qualifier
- 5 weeks' timee0
- Comparator
- long-day treated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CO 2 dark-fixation and organic acid formation are limited to the low level of the long-day treated plants at 5 weeks' time”
e1“Kalanchoe blossfeldiana variety Tom Thumb”
Claim · model-written summary
Carbon dioxide dark fixation and organic acid formation appeared interrelated and apparently used respiratory carbon dioxide in carbon dioxide-free air.
- Taxon
- Kalanchoe blossfeldiana variety Tom ThumbKalanchoe blossfeldianae1
- Outcome
- CO 2 dark-fixation and organic acid formatione0
- Qualifier
- apparently utilize respiratory CO 2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Only CO 2 dark-fixation and organic acid formation appear to be interrelated and apparently utilize respiratory CO 2 if treated in a CO 2 -free atmosphere”
e1“Kalanchoe blossfeldiana variety Tom Thumb”
Claim · model-written summary
Capacity to use respiratory carbon dioxide increased with plant maturity.
- Taxon
- Kalanchoe blossfeldiana variety Tom ThumbKalanchoe blossfeldianae1
- Organ / stage
- maturitye0
- Outcome
- capacity to use respiratory CO 2e0
- Direction
- increasese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This capacity to use respiratory CO 2 increases with maturity of the plants”
e1“Kalanchoe blossfeldiana variety Tom Thumb”
Claim · model-written summary
Flowering did not control development of succulence, organic acid formation or dark-fixation capacity.
- Taxon
- Kalanchoe blossfeldiana variety Tom ThumbKalanchoe blossfeldianae1
- Outcome
- development of succulence, organic acid formation, or the capacity for CO 2 dark-fixatione0
- Qualifier
- Floweringe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Flowering does not control the development of succulence, organic acid formation, or the capacity for CO 2 dark-fixation”
e1“Kalanchoe blossfeldiana variety Tom Thumb”
Claim · model-written summary
Dark fixation and organic acid formation did not control flowering and occurred in vegetative plants with little succulence.
- Taxon
- Kalanchoe blossfeldiana variety Tom ThumbKalanchoe blossfeldianae1
- Outcome
- floweringe0
- Qualifier
- capacity for dark-fixation and organic acid formatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“capacity for dark-fixation and organic acid formation do not control flowering and can occur in vegetative Tom Thumb plants that do not exhibit appreciable succulence”
e1“Kalanchoe blossfeldiana variety Tom Thumb”
The same questions in other papers
light · phenology · Kalanchoe blossfeldianaPositive and negative results
2 papers in the same direction as this paper · 3 in the opposite direction
- negative
- no effect
- negative
2 papers more in this group
See all 6 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.