Abstract
Long-day and short-day photoperiods were set artificially,with natural condition as the control,to examine photosynthetic parameters and chlorophyll fluorescence transient kinetics of 6-year-old ‘Chunjie'peach cultivar( Prunus persica cv. Chunjie),and to investigate the effects of photoperiod on photosynthesis of the northern deciduous fruit trees. The tree advanced into the dormancy induction period under the short-day condition,and delayed under the long-day condition.In the dormancy induction period,the leaf net photosynthetic rate( Pn) and stomatal conductance( gs) decreased,and the intercellular CO2concentration( Ci) increased,suggesting that the Pndecreased because of non-stomatal limitation. Maximum quantum yield for primary photochemistry( φPo,or Fv/Fm),potential activity( Fv/Fo),probability that a trapped exciton moved an electron into the electron transport chain beyond QA-( ψo) and performance index on absorption basis( PIABS) decreased in the dormancy induction period,suggesting that the electron transport capacity of photosynthetic electron transport chain was inhibited,possibly due to the damage to downstream electron transport chain( after QA-acceptor) of PSⅡ reaction center. Long-day photoperiod improved Pnin the dormancy induction period,and reduced the range of decline in PIABSand the injured degree of photosystem. Short-day photoperiod deepened and accelerated the damage to photosynthetic apparatus significantly. The induced effect of photoperiod was associated with the dormancy processes.
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Claims 14
Claim · model-written summary
In the dormancy induction period, leaf net photosynthetic rate and stomatal conductance decreased in peach.
- Taxon
- peach
Prunus persicat0 - Organ / stage
- leafe0
- Outcome
- leaf net photosynthetic rate( Pn) and stomatal conductance( gs)e0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in peach during dormancy induction”
e0“In the dormancy induction period, the leaf net photosynthetic rate( Pn) and stomatal conductance( gs) decreased”
Claim · model-written summary
Intercellular CO2 concentration increased in peach during dormancy induction.
- Taxon
- peachPrunus persicat0
- Outcome
- intercellular CO2concentration( Ci)e1
- Direction
- increasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in peach during dormancy induction”
e1“the intercellular CO2concentration( Ci) increased”
Claim · model-written summary
Pn decrease in peach dormancy induction is suggested to result from non-stomatal limitation.
- Taxon
- peachPrunus persicat0
- Outcome
- Pne2
- Qualifier
- non-stomatal limitatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in peach during dormancy induction”
e2“suggesting that the Pndecreased because of non-stomatal limitation”
Claim · model-written summary
Maximum quantum yield for primary photochemistry (Fv/Fm) and potential activity (Fv/Fo) decreased in peach during dormancy induction.
- Taxon
- peachPrunus persicat0
- Outcome
- Maximum quantum yield for primary photochemistry( φPo,or Fv/Fm)e3
- Direction
- decreasede3
- Qualifier
- potential activity( Fv/Fo)e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in peach during dormancy induction”
e3“Maximum quantum yield for primary photochemistry( φPo,or Fv/Fm),potential activity( Fv/Fo),probability that a trapped exciton moved an electron into the electron transport chain beyond QA-( ψo) and performance index on absorption basis( PIABS) decreased in the dormancy induction period”
Claim · model-written summary
Probability that a trapped exciton moved an electron beyond QA- (psi-o) decreased in peach during dormancy induction.
- Taxon
- peachPrunus persicat0
- Outcome
- probability that a trapped exciton moved an electron into the electron transport chain beyond QA-( ψo)e3
- Direction
- decreasede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in peach during dormancy induction”
e3“Maximum quantum yield for primary photochemistry( φPo,or Fv/Fm),potential activity( Fv/Fo),probability that a trapped exciton moved an electron into the electron transport chain beyond QA-( ψo) and performance index on absorption basis( PIABS) decreased in the dormancy induction period”
Claim · model-written summary
Performance index on absorption basis (PIABS) decreased in peach during dormancy induction.
- Taxon
- peachPrunus persicat0
- Outcome
- performance index on absorption basis( PIABS)e3
- Direction
- decreasede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in peach during dormancy induction”
e3“Maximum quantum yield for primary photochemistry( φPo,or Fv/Fm),potential activity( Fv/Fo),probability that a trapped exciton moved an electron into the electron transport chain beyond QA-( ψo) and performance index on absorption basis( PIABS) decreased in the dormancy induction period”
Claim · model-written summary
Electron transport capacity of the photosynthetic electron transport chain is possibly inhibited by damage downstream of QA- in the PSII reaction center of peach.
- Taxon
- peachPrunus persicat0
- Outcome
- electron transport capacity of photosynthetic electron transport chaine4
- Qualifier
- damage to downstream electron transport chain( after QA-acceptor) of PSⅡ reaction centere4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in peach during dormancy induction”
e4“electron transport capacity of photosynthetic electron transport chain was inhibited,possibly due to the damage to downstream electron transport chain( after QA-acceptor) of PSⅡ reaction center”
Claim · model-written summary
Long-day photoperiod improved net photosynthetic rate in peach during dormancy induction compared with natural condition.
- Taxon
- peachPrunus persicat0
- Treatment
- Long-day photoperiode5
- Outcome
- Pne5
- Direction
- improvede5
- Comparator
- natural conditione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in peach during dormancy induction”
e5“Long-day photoperiod improved Pnin the dormancy induction period,and reduced the range of decline in PIABSand the injured degree of photosystem”
e7“with natural condition as the control”
Claim · model-written summary
Long-day photoperiod reduced the range of decline in PIABS in peach during dormancy induction compared with natural condition.
- Taxon
- peachPrunus persicat0
- Treatment
- Long-day photoperiode5
- Outcome
- range of decline in PIABSe5
- Direction
- reducede5
- Comparator
- natural conditione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in peach during dormancy induction”
e5“Long-day photoperiod improved Pnin the dormancy induction period,and reduced the range of decline in PIABSand the injured degree of photosystem”
e7“with natural condition as the control”
Claim · model-written summary
Long-day photoperiod reduced the injured degree of the photosystem in peach during dormancy induction compared with natural condition.
- Taxon
- peachPrunus persicat0
- Treatment
- Long-day photoperiode5
- Outcome
- injured degree of photosysteme5
- Direction
- reducede5
- Comparator
- natural conditione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in peach during dormancy induction”
e5“Long-day photoperiod improved Pnin the dormancy induction period,and reduced the range of decline in PIABSand the injured degree of photosystem”
e7“with natural condition as the control”
Claim · model-written summary
Short-day photoperiod deepened and accelerated the damage to the photosynthetic apparatus of peach significantly compared with natural condition.
- Taxon
- peachPrunus persicat0
- Treatment
- Short-day photoperiode6
- Outcome
- damage to photosynthetic apparatuse6
- Direction
- deepenede6
- Comparator
- natural conditione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in peach during dormancy induction”
e6“Short-day photoperiod deepened and accelerated the damage to photosynthetic apparatus significantly”
e7“with natural condition as the control”
Claim · model-written summary
The induced effect of photoperiod is associated with dormancy processes in peach.
- Taxon
- peachPrunus persicat0
- Treatment
- photoperiode1
- Outcome
- induced effect of photoperiode1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in peach during dormancy induction”
e1“The induced effect of photoperiod was associated with the dormancy processes”
Claim · model-written summary
Short-day condition advanced the dormancy induction period of peach trees compared with natural condition.
- Taxon
- peachPrunus persicat0
- Treatment
- short-day conditione1
- Outcome
- dormancy induction periode1
- Direction
- advancede1
- Comparator
- natural conditione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in peach during dormancy induction”
e1“The tree advanced into the dormancy induction period under the short-day condition”
e2“with natural condition as the control”
Claim · model-written summary
Long-day condition delayed the dormancy induction period of peach trees compared with natural condition.
- Taxon
- peachPrunus persicat0
- Treatment
- long-day conditione1
- Outcome
- dormancy induction periode1
- Direction
- delayede1
- Comparator
- natural conditione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in peach during dormancy induction”
e1“The tree advanced into the dormancy induction period under the short-day condition,and delayed under the long-day condition”
e2“with natural condition as the control”
The same questions in other papers
light · crop injury · Prunus persica (peach)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
light · physiology: photosynthesis · Prunus persica (peach)Positive and negative results
4 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
5 papers more in this group
See all 9 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.