Abstract
The effects of exogenous gibberellin(GA3) on absorption and photosynthetic characteristics of cucumber(Cucumis sativus L.) seedlings under 75mmol/L NaCl stress was studied.The results showed that 25mg/L GA3 can significantly alleviated the injury of stress to seedlings and increased seedling growth,improved selectivity of K+ and Ca2+ absorbing and increased Na+ and Cl-contents.Net photosynthetic rate(Pn),stomatal conductance(Gs),transpiration rate(Tr) and stomatal limitation value(Ls) increased,intercellular CO2 concentration(Ci) decreased significantly under NaCI stress.exogenous GA3 can alleviate cucumber seedlings damage under salt stress.
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Claims 6
Claim · model-written summary
GA3 alleviated salt injury and increased seedling growth.
Not reportedTaxonComparator
Verbatim
e0“25mg/L GA3 can significantly alleviated the injury of stress to seedlings and increased seedling growth”
Claim · model-written summary
GA3 improved selective K+ and Ca2+ absorption.
Not reportedTaxonTreatmentComparator
Verbatim
e0“improved selectivity of K+ and Ca2+ absorbing”
Claim · model-written summary
GA3 increased Na+ and Cl- contents.
Not reportedTaxonTreatmentComparator
Verbatim
e0“increased Na+ and Cl-contents”
Claim · model-written summary
Photosynthetic rate, stomatal conductance and transpiration increased.
- Outcome
- Net photosynthetic rate(Pn),stomatal conductance(Gs),transpiration rate(Tr)e0
- Direction
- increasede0
Not reportedTaxonTreatmentComparator
Verbatim
e0“Net photosynthetic rate(Pn),stomatal conductance(Gs),transpiration rate(Tr) and stomatal limitation value(Ls) increased”
Claim · model-written summary
Stomatal limitation value increased.
Not reportedTaxonTreatmentComparator
Verbatim
e0“stomatal limitation value(Ls) increased”
Claim · model-written summary
Intercellular CO2 concentration decreased significantly.
Not reportedTaxonTreatmentComparator
Verbatim
e0“intercellular CO2 concentration(Ci) decreased significantly under NaCI stress”