Abstract
Sweet pepper 'Chifengtexuan' seedlings were grafted onto 'Weishi' and 'Buyeding' rootstocks, treated with low temperature (8 degrees C/ 5 degrees C) and weak light intensity (100 micromol x m(-2) s(-1)) for 7 days, and then recovered under normal conditions (25 degrees C/ 18 degrees C, PFD 550-600 micromol x s(-1)) for 3 days to study the variations of their gas exchange parameters, carboxylation efficiency, and fluorescence parameters, with the own-rooted 'Chifengtexuan' seedlings as the control. The results showed that on the 3rd day of low temperature and weak light intensity stress, the photosynthetic rate (Pn), stomatal conductance (Gs), and carboxylation efficiency (CE) of both own-rooted and grafted seedling leaves decreased more than 50%, and after then, the Pn and Gs tended to stable while CE decreased continually. The intercellular CO2 concentration (Ci) declined first, but enhanced after the 4th day of the stress. Low temperature and weak light intensity decreased the maximal photochemical efficiency of PS II in darkness (Fv/Fm), actual photochemical efficiency of PS II during illumination (phi (PS II)) and electron transport rate (ETR), but increased the initial fluorescence (Fo), which implied that the stress caused definite damage of photosynthetic apparatus. However, the damage diminished after 3 days of recovery. Comparing with those of own-rooted seedlings, the Pn, Gs, CE, phi(PS II), and Fv/Fm of grafted seedlings increased to various degrees, and Fo decreased markedly during the stress. It was concluded that grafting could promote the photosynthetic function, and alleviate the effects of low temperature and weak light intensity on the photosynthesis of sweet pepper seedlings.
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
Low temperature and weak light stress decreased Pn, Gs and CE by more than 50% on the 3rd day in both own-rooted and grafted seedlings.
- Taxon
- Sweet pepper
Capsicum annuume0 - Material
- Chifengtexuane0
- Treatment
- low temperature (8 degrees C/ 5 degrees C) and weak light intensity (100 micromol x m(-2) s(-1))e1
- Outcome
- photosynthetic rate (Pn), stomatal conductance (Gs), and carboxylation efficiency (CE)e2
- Direction
- decreasede2
- Value
- 50%e2
- Qualifier
- on the 3rd daye2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sweet pepper 'Chifengtexuan' seedlings were grafted onto 'Weishi' and 'Buyeding' rootstocks”
e1“treated with low temperature (8 degrees C/ 5 degrees C) and weak light intensity (100 micromol x m(-2) s(-1)) for 7 days”
e2“The results showed that on the 3rd day of low temperature and weak light intensity stress, the photosynthetic rate (Pn), stomatal conductance (Gs), and carboxylation efficiency (CE) of both own-rooted and grafted seedling leaves decreased more than 50%”
Claim · model-written summary
Intercellular CO2 concentration declined first under the stress.
- Taxon
- Sweet pepperCapsicum annuume0
- Outcome
- intercellular CO2 concentration (Ci)e3
- Direction
- declined firste3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sweet pepper 'Chifengtexuan' seedlings were grafted onto 'Weishi' and 'Buyeding' rootstocks”
e3“The intercellular CO2 concentration (Ci) declined first, but enhanced after the 4th day of the stress”
Claim · model-written summary
Intercellular CO2 concentration enhanced after the 4th day of the stress.
- Taxon
- Sweet pepperCapsicum annuume0
- Outcome
- intercellular CO2 concentration (Ci)e3
- Direction
- enhanced after the 4th daye3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sweet pepper 'Chifengtexuan' seedlings were grafted onto 'Weishi' and 'Buyeding' rootstocks”
e3“The intercellular CO2 concentration (Ci) declined first, but enhanced after the 4th day of the stress”
Claim · model-written summary
Low temperature and weak light stress decreased maximal PS II efficiency (Fv/Fm), actual PS II efficiency (phi (PS II)) and electron transport rate (ETR).
- Taxon
- Sweet pepperCapsicum annuume0
- Treatment
- Low temperature and weak light intensitye4
- Outcome
- maximal photochemical efficiency of PS II in darkness (Fv/Fm), actual photochemical efficiency of PS II during illumination (phi (PS II)) and electron transport rate (ETR)e4
- Direction
- decreasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sweet pepper 'Chifengtexuan' seedlings were grafted onto 'Weishi' and 'Buyeding' rootstocks”
e4“Low temperature and weak light intensity decreased the maximal photochemical efficiency of PS II in darkness (Fv/Fm), actual photochemical efficiency of PS II during illumination (phi (PS II)) and electron transport rate (ETR), but increased the initial fluorescence (Fo)”
Claim · model-written summary
Low temperature and weak light stress increased initial fluorescence (Fo).
- Taxon
- Sweet pepperCapsicum annuume0
- Treatment
- Low temperature and weak light intensitye4
- Outcome
- initial fluorescence (Fo)e4
- Direction
- increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sweet pepper 'Chifengtexuan' seedlings were grafted onto 'Weishi' and 'Buyeding' rootstocks”
e4“Low temperature and weak light intensity decreased the maximal photochemical efficiency of PS II in darkness (Fv/Fm), actual photochemical efficiency of PS II during illumination (phi (PS II)) and electron transport rate (ETR), but increased the initial fluorescence (Fo)”
Claim · model-written summary
The stress caused definite damage to the photosynthetic apparatus.
- Taxon
- Sweet pepperCapsicum annuume0
- Outcome
- damage of photosynthetic apparatuse5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sweet pepper 'Chifengtexuan' seedlings were grafted onto 'Weishi' and 'Buyeding' rootstocks”
e5“the stress caused definite damage of photosynthetic apparatus”
Claim · model-written summary
The damage to the photosynthetic apparatus diminished after 3 days of recovery.
- Taxon
- Sweet pepperCapsicum annuume0
- Outcome
- damagee6
- Direction
- diminishede6
- Qualifier
- after 3 days of recoverye6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sweet pepper 'Chifengtexuan' seedlings were grafted onto 'Weishi' and 'Buyeding' rootstocks”
e6“However, the damage diminished after 3 days of recovery”
Claim · model-written summary
Compared with own-rooted seedlings, grafted seedlings had higher Pn, Gs and CE under the stress.
- Taxon
- Sweet pepperCapsicum annuume0
- Material
- Chifengtexuane0
- Treatment
- graftede7
- Outcome
- Pn, Gs, CEe7
- Direction
- increasede7
- Comparator
- own-rooted seedlingse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sweet pepper 'Chifengtexuan' seedlings were grafted onto 'Weishi' and 'Buyeding' rootstocks”
e7“Comparing with those of own-rooted seedlings, the Pn, Gs, CE, phi(PS II), and Fv/Fm of grafted seedlings increased to various degrees, and Fo decreased markedly during the stress”
Claim · model-written summary
Compared with own-rooted seedlings, grafted seedlings had higher phi(PS II) and Fv/Fm under the stress.
- Taxon
- Sweet pepperCapsicum annuume0
- Treatment
- graftede7
- Outcome
- phi(PS II), and Fv/Fme7
- Direction
- increasede7
- Comparator
- own-rooted seedlingse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sweet pepper 'Chifengtexuan' seedlings were grafted onto 'Weishi' and 'Buyeding' rootstocks”
e7“Comparing with those of own-rooted seedlings, the Pn, Gs, CE, phi(PS II), and Fv/Fm of grafted seedlings increased to various degrees, and Fo decreased markedly during the stress”
Claim · model-written summary
Compared with own-rooted seedlings, grafted seedlings showed a markedly decreased Fo during the stress.
- Taxon
- Sweet pepperCapsicum annuume0
- Treatment
- graftede7
- Outcome
- Foe7
- Direction
- decreased markedlye7
- Comparator
- own-rooted seedlingse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sweet pepper 'Chifengtexuan' seedlings were grafted onto 'Weishi' and 'Buyeding' rootstocks”
e7“Comparing with those of own-rooted seedlings, the Pn, Gs, CE, phi(PS II), and Fv/Fm of grafted seedlings increased to various degrees, and Fo decreased markedly during the stress”
Claim · model-written summary
The authors conclude that grafting could promote the photosynthetic function of sweet pepper seedlings.
- Taxon
- sweet pepperCapsicum annuume1
- Treatment
- graftinge1
- Outcome
- photosynthetic functione1
- Direction
- promotee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“It was concluded that grafting could promote the photosynthetic function, and alleviate the effects of low temperature and weak light intensity on the photosynthesis of sweet pepper seedlings”
Claim · model-written summary
The authors conclude that grafting alleviated the effects of low temperature and weak light on photosynthesis of sweet pepper seedlings.
- Taxon
- sweet pepperCapsicum annuume1
- Treatment
- graftinge1
- Outcome
- effects of low temperature and weak light intensity on the photosynthesise1
- Direction
- alleviatee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“It was concluded that grafting could promote the photosynthetic function, and alleviate the effects of low temperature and weak light intensity on the photosynthesis of sweet pepper seedlings”
The same questions in other papers
grafting · physiology: photosynthesis · Capsicum annuum (sweet pepper)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- positive
cold · physiology: photosynthesis · Capsicum annuum (sweet pepper)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
2 papers more in this group
See all 6 papers →light · physiology: photosynthesis · Capsicum annuum (sweet pepper)Positive and negative results
6 papers in the same direction as this paper · 13 in the opposite direction
- positive
- positive
- positive
16 papers more in this group
See all 20 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.