Abstract
Mixed fluorescent and incandescent light increased growth and sink strength of the uppermost young shoot of rose plants (Rosa hybrida cv. Marimba) in comparison to pure fluorescent light. This was manifested by increased apical dominance. Monochromatic low-energy red light, given by means of optic fibers for 24 hours to shoot tips that had been previously darkened for 5 days, increased the transport of (14)C-labeled assimilates to the intact tips and the uptake of [(14)C]sucrose by detached tips. Far-red had little or no effect, and blue was not effective at all in these reactions. Red light given directly to detached shoot tips, in vitro, increased the uptake of [(14)C]sucrose by the isolated tips. Adding far-red to the red greatly promoted the uptake, whereas blue and blue plus far-red were not active. The main character of the light reaction promoting sink activity in the shoot is that it is perceived by the shoot tip itself. It is operated by red light; far-red promotes the red effect but has little or no effect when alone. Light apparently promotes shoot sink activity by increasing the unloading process.
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Claims 10
Claim · model-written summary
Mixed fluorescent and incandescent light increased growth and sink strength of the uppermost young shoot of rose compared with pure fluorescent light.
- Taxon
- Rosa hybrida
Rosa hybrid cultivare1 - Material
- cv. Marimbae1
- Organ / stage
- uppermost young shoote1
- Treatment
- Mixed fluorescent and incandescent lighte1
- Outcome
- growth and sink strengthe1
- Direction
- increasede1
- Comparator
- pure fluorescent lighte1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Mixed fluorescent and incandescent light increased growth and sink strength of the uppermost young shoot of rose plants (Rosa hybrida cv. Marimba) in comparison to pure fluorescent light”
Claim · model-written summary
Mixed fluorescent and incandescent light increased apical dominance in rose shoots.
- Taxon
- Rosa hybridaRosa hybrid cultivare1
- Treatment
- Mixed fluorescent and incandescent lighte1
- Outcome
- apical dominancee2
- Direction
- increasede2
- Comparator
- pure fluorescent lighte1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Mixed fluorescent and incandescent light increased growth and sink strength of the uppermost young shoot of rose plants (Rosa hybrida cv. Marimba) in comparison to pure fluorescent light”
e2“This was manifested by increased apical dominance”
Claim · model-written summary
Monochromatic red light given for 24 hours by optic fibers increased transport of (14)C-labeled assimilates to intact rose shoot tips and uptake of [(14)C]sucrose by detached tips.
- Taxon
- Rosa hybridaRosa hybrid cultivare1
- Organ / stage
- shoot tipse3
- Treatment
- Monochromatic low-energy red lighte3
- Outcome
- transport of (14)C-labeled assimilates to the intact tips and the uptake of [(14)C]sucrose by detached tipse3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Mixed fluorescent and incandescent light increased growth and sink strength of the uppermost young shoot of rose plants (Rosa hybrida cv. Marimba) in comparison to pure fluorescent light”
e3“Monochromatic low-energy red light, given by means of optic fibers for 24 hours to shoot tips that had been previously darkened for 5 days, increased the transport of (14)C-labeled assimilates to the intact tips and the uptake of [(14)C]sucrose by detached tips”
Claim · model-written summary
Far-red light alone had little or no effect on these sink reactions in rose shoot tips.
- Taxon
- Rosa hybridaRosa hybrid cultivare1
- Treatment
- Far-rede4
- Outcome
- these reactionse4
- Direction
- little or no effecte4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Mixed fluorescent and incandescent light increased growth and sink strength of the uppermost young shoot of rose plants (Rosa hybrida cv. Marimba) in comparison to pure fluorescent light”
e4“Far-red had little or no effect, and blue was not effective at all in these reactions”
Claim · model-written summary
Blue light was not effective at all in these sink reactions in rose shoot tips.
- Taxon
- Rosa hybridaRosa hybrid cultivare1
- Treatment
- bluee4
- Outcome
- these reactionse4
- Direction
- not effective at alle4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Mixed fluorescent and incandescent light increased growth and sink strength of the uppermost young shoot of rose plants (Rosa hybrida cv. Marimba) in comparison to pure fluorescent light”
e4“Far-red had little or no effect, and blue was not effective at all in these reactions”
Claim · model-written summary
Red light given directly to detached rose shoot tips in vitro increased uptake of [(14)C]sucrose by the isolated tips.
- Taxon
- Rosa hybridaRosa hybrid cultivare1
- Organ / stage
- detached shoot tipse5
- Treatment
- Red light given directly to detached shoot tips, in vitroe5
- Outcome
- uptake of [(14)C]sucrose by the isolated tipse5
- Direction
- increasede5
- Setting
- in vitroe5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Mixed fluorescent and incandescent light increased growth and sink strength of the uppermost young shoot of rose plants (Rosa hybrida cv. Marimba) in comparison to pure fluorescent light”
e5“Red light given directly to detached shoot tips, in vitro, increased the uptake of [(14)C]sucrose by the isolated tips”
Claim · model-written summary
Adding far-red to red light greatly promoted sucrose uptake by detached rose shoot tips compared with red light alone.
- Taxon
- Rosa hybridaRosa hybrid cultivare1
- Treatment
- Adding far-red to the rede6
- Outcome
- the uptakee6
- Direction
- promotede6
- Comparator
- the rede6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Mixed fluorescent and incandescent light increased growth and sink strength of the uppermost young shoot of rose plants (Rosa hybrida cv. Marimba) in comparison to pure fluorescent light”
e6“Adding far-red to the red greatly promoted the uptake, whereas blue and blue plus far-red were not active”
Claim · model-written summary
Blue light and blue plus far-red were not active in promoting sucrose uptake by rose shoot tips.
- Taxon
- Rosa hybridaRosa hybrid cultivare1
- Treatment
- blue and blue plus far-rede6
- Outcome
- the uptakee6
- Direction
- not activee6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Mixed fluorescent and incandescent light increased growth and sink strength of the uppermost young shoot of rose plants (Rosa hybrida cv. Marimba) in comparison to pure fluorescent light”
e6“Adding far-red to the red greatly promoted the uptake, whereas blue and blue plus far-red were not active”
Claim · model-written summary
The light reaction promoting sink activity in rose shoots is perceived by the shoot tip itself.
- Taxon
- Rosa hybridaRosa hybrid cultivare1
- Organ / stage
- shoot tipe7
- Outcome
- sink activitye7
- Qualifier
- perceived by the shoot tip itselfe7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Mixed fluorescent and incandescent light increased growth and sink strength of the uppermost young shoot of rose plants (Rosa hybrida cv. Marimba) in comparison to pure fluorescent light”
e7“The main character of the light reaction promoting sink activity in the shoot is that it is perceived by the shoot tip itself”
Claim · model-written summary
Light apparently promotes shoot sink activity of rose by increasing the unloading process.
- Taxon
- Rosa hybridaRosa hybrid cultivare1
- Treatment
- Lighte7
- Outcome
- shoot sink activitye7
- Qualifier
- by increasing the unloading processe7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Mixed fluorescent and incandescent light increased growth and sink strength of the uppermost young shoot of rose plants (Rosa hybrida cv. Marimba) in comparison to pure fluorescent light”
e7“Light apparently promotes shoot sink activity by increasing the unloading process”
The same questions in other papers
light · growth · Rosa hybrid cultivarPositive and negative results
10 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
9 papers more in this group
See all 13 papers →light · nutrient: content · Rosa hybrid cultivarResults agree
1 paper in the same direction as this paper
- positive
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.