Abstract
(L.) Sendtn.) to salt stress was investigated by analyzing the photosynthetic traits and mineral content of the plants and the metabolic composition of the fruit. The bell pepper variety "Vedrana" was grafted onto the salt-tolerant rootstock "Rocal F1" and grown at two salinities (20 mM and 40 mM NaCl) and control (0 mM NaCl) during the spring-summer period. On a physiological level, similar stomatal restriction of photosynthesis in grafted and ungrafted plants indicated that grafting did not alleviate water balance disturbances under increased salt exposure. Measurements of midday water potential did not show improved water status of grafted plants. The similar metabolic changes in grafted and ungrafted plants were also reflected in similarly reduced fruit yields. Thus, this grafting did not reduce the risk of ionic and osmotic imbalance in pepper plants grown under moderate salt treatment. Changes in the biochemical profiles of the pepper fruit were seen for both added-salt treatments. The fruit phenolic compounds were affected by rootstock mediation, although only for the July harvest, where total phenolics content increased with 40 mM NaCl treatment. Fruit ascorbic acid content increased with the duration of salt stress, without the mediation of the rootstock. The high salt dependence of this quality trait in pepper fruit appears to lead to more limited rootstock mediation effects.
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Claims 8
Claim · model-written summary
Grafting did not alleviate stomatal restriction of photosynthesis under increased salt exposure; grafted and ungrafted plants showed similar restriction.
Verbatim
e0“The bell pepper variety "Vedrana" was grafted onto the salt-tolerant rootstock "Rocal F1"”
e1“similar stomatal restriction of photosynthesis in grafted and ungrafted plants indicated that grafting did not alleviate water balance disturbances under increased salt exposure”
Claim · model-written summary
Grafting did not improve midday water potential, so grafted plants showed no better water status.
Not reportedComparator
Verbatim
e0“The bell pepper variety "Vedrana" was grafted onto the salt-tolerant rootstock "Rocal F1"”
e1“Measurements of midday water potential did not show improved water status of grafted plants”
Claim · model-written summary
Grafted and ungrafted pepper plants showed similarly reduced fruit yields under moderate salt treatment.
Verbatim
e0“The bell pepper variety "Vedrana" was grafted onto the salt-tolerant rootstock "Rocal F1"”
e1“The similar metabolic changes in grafted and ungrafted plants were also reflected in similarly reduced fruit yields”
e2“Thus, this grafting did not reduce the risk of ionic and osmotic imbalance in pepper plants grown under moderate salt treatment”
Claim · model-written summary
Biochemical profiles of bell pepper fruit changed under both added-salt treatments compared with control.
- Taxon
- bell peppere0
- Treatment
- added-salt treatmentse1
- Outcome
- biochemical profiles of the pepper fruite1
- Comparator
- control (0 mM NaCl)e2
Not reportedDirection
Verbatim
e0“The bell pepper variety "Vedrana" was grafted onto the salt-tolerant rootstock "Rocal F1"”
e1“Changes in the biochemical profiles of the pepper fruit were seen for both added-salt treatments”
e2“grown at two salinities (20 mM and 40 mM NaCl) and control (0 mM NaCl) during the spring-summer period”
Claim · model-written summary
Rootstock mediation affected fruit phenolic compounds, but only in the July harvest.
- Taxon
- bell peppere0
- Treatment
- rootstock mediatione1
- Outcome
- fruit phenolic compoundse1
- Qualifier
- only for the July harveste1
Not reportedComparatorDirection
Verbatim
e0“The bell pepper variety "Vedrana" was grafted onto the salt-tolerant rootstock "Rocal F1"”
e1“The fruit phenolic compounds were affected by rootstock mediation, although only for the July harvest”
Claim · model-written summary
Total phenolics content of pepper fruit increased with the 40 mM NaCl treatment in the July harvest.
Verbatim
e0“The bell pepper variety "Vedrana" was grafted onto the salt-tolerant rootstock "Rocal F1"”
e1“grown at two salinities (20 mM and 40 mM NaCl) and control (0 mM NaCl) during the spring-summer period”
e2“The fruit phenolic compounds were affected by rootstock mediation, although only for the July harvest”
e3“where total phenolics content increased with 40 mM NaCl treatment”
Claim · model-written summary
Fruit ascorbic acid content increased with the duration of salt stress, without a rootstock effect.
Verbatim
e0“The bell pepper variety "Vedrana" was grafted onto the salt-tolerant rootstock "Rocal F1"”
e1“Fruit ascorbic acid content increased with the duration of salt stress, without the mediation of the rootstock”
Claim · model-written summary
High salt dependence of this quality trait appears to limit rootstock mediation effects in pepper fruit.
Verbatim
e0“The bell pepper variety "Vedrana" was grafted onto the salt-tolerant rootstock "Rocal F1"”
e1“The high salt dependence of this quality trait in pepper fruit appears to lead to more limited rootstock mediation effects”
The same questions in other papers
salinity · yield · Capsicum annuum (sweet pepper)Results differ
21 papers in the same direction as this paper · 3 in the opposite direction
- negative
- positive
- positive
21 papers more in this group
See all 25 papers →grafting · physiology: photosynthesis · Capsicum annuum (sweet pepper)Positive and negative results
3 in the opposite direction
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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.