Abstract
Among the most important quality parameters of irrigation water used for greenhouse crops, alkalinity of water is considered critical due to its impact on soil or growing medium solution pH. In this study, plant growth, Fe content, photosynthetic pigment content, maximal quantum yield of PSII photochemistry (Fv/Fm), performance index (PI), leaf relative water content (LRWC), and soluble sugars concentration were investigated in nongrafted and grafted tomato (Lycopersicon esculentum Mill. cv. Red stone) plants onto five rootstocks of eggplant (Solanum melongena cv. Long purple), datura (Datura patula), orange nightshade (Solanum luteum Mill.), local Iranian tobacco (Nicotiana tabacum), and field tomato (Lycopersicon esculentum Mill. cv. Cal.jn3), exposed to 0, 5, and 10 mM NaHCO3 concentrations, to determine whether grafting could improve alkalinity tolerance of tomato. Significant depression of leaf area, leaf and stem dry mass, shoot and root Fe content and LRWC under high NaHCO3 level was observed in both grafted and ungrafted plants. The highest reduction in the shoot Fe content was observed at 10 mM sodium bicarbonate in control plants (greenhouse tomato). Moreover, at high HCO3 - level, the highest percentage of LRWC reduction was also recorded in ungrafted plants. Values of Fv/Fm and PI decreased significantly at 5 and 10 mM NaHCO3 irrespective of rootstock type. The present study revealed that soluble sugars content, photosynthetic pigments content, Fv/Fm and PI values in plants grafted onto datura rootstock were higher than those in nongrafted and rest of the grafted plants. Thus, the use of datura rootstock could provide a useful tool to improve alkalinity tolerance of tomato plants under NaHCO3 stress.
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Claims 7
Claim · model-written summary
High bicarbonate reduced leaf area, leaf and stem dry mass, shoot and root iron, and relative water content in grafted and ungrafted tomato.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- high NaHCO3 levele0
- Outcome
- leaf area, leaf and stem dry mass, shoot and root Fe content and LRWCe0
- Direction
- depressione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant depression of leaf area, leaf and stem dry mass, shoot and root Fe content and LRWC under high NaHCO3 level was observed in both grafted and ungrafted plants.”
t0“alkali stress in tomato plants”
Claim · model-written summary
Shoot iron showed its greatest reduction at 10 mM bicarbonate in ungrafted greenhouse tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- control plantse0
- Treatment
- 10 mM sodium bicarbonatee0
- Outcome
- shoot Fe contente0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest reduction in the shoot Fe content was observed at 10 mM sodium bicarbonate in control plants (greenhouse tomato).”
Claim · model-written summary
The greatest relative water content reduction at high bicarbonate occurred in ungrafted plants.
- Taxon
- tomatoSolanum lycopersicumt0
- Material
- ungrafted plantse0
- Treatment
- high HCO3 - levele0
- Outcome
- LRWCe0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at high HCO3 - level, the highest percentage of LRWC reduction was also recorded in ungrafted plants.”
t0“alkali stress in tomato plants”
Claim · model-written summary
Fv/Fm and PI decreased significantly at 5 and 10 mM bicarbonate regardless of rootstock.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 5 and 10 mM NaHCO3e0
- Outcome
- Fv/Fm and PIe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Values of Fv/Fm and PI decreased significantly at 5 and 10 mM NaHCO3 irrespective of rootstock type.”
t0“alkali stress in tomato plants”
Claim · model-written summary
Datura-grafted plants had higher soluble sugars and photosynthetic pigments than other grafted or ungrafted plants.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- grafted onto datura rootstocke0
- Outcome
- soluble sugars content, photosynthetic pigments contente0
- Direction
- highere0
- Comparator
- nongrafted and rest of the grafted plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soluble sugars content, photosynthetic pigments content, Fv/Fm and PI values in plants grafted onto datura rootstock were higher than those in nongrafted and rest of the grafted plants.”
t0“alkali stress in tomato plants”
Claim · model-written summary
Datura-grafted plants had higher Fv/Fm and PI than other grafted or ungrafted plants.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- grafted onto datura rootstocke0
- Outcome
- Fv/Fm and PIe0
- Direction
- highere0
- Comparator
- nongrafted and rest of the grafted plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soluble sugars content, photosynthetic pigments content, Fv/Fm and PI values in plants grafted onto datura rootstock were higher than those in nongrafted and rest of the grafted plants.”
t0“alkali stress in tomato plants”
Claim · model-written summary
The authors concluded that datura rootstock could improve tomato bicarbonate tolerance.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- use of datura rootstocke0
- Qualifier
- under NaHCO3 stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the use of datura rootstock could provide a useful tool to improve alkalinity tolerance of tomato plants under NaHCO3 stress.”
The same questions in other papers
grafting · physiology: photosynthesis · Solanum lycopersicum (tomato)Positive and negative results
17 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- negative
- no effect
17 papers more in this group
See all 21 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.