Abstract
Potassium has a main effect on plants salinity tolerance through its effect on cells osmoregulation, and the maintenance of cell turgor. The objective of the present study was to investigate the effect of foliar nutrition of potassium sulfate (PS; 0 and 1.5%) on some morphometric and physiological traits of Bidaneh-Sefid grapevine under salinity condition of NaCl (0, 25, 50 and 100 Mm). This experiment was carried out factorially based on completely randomized design in a greenhouse condition. The result showed that salinity decreased plant height, leaves number, leaves area and re-growth, but foliar application of potassium mitigated the negative impacts of salinity on these morphometric indices. Also, application of 1.5% potassium resulted in the stability of photosynthetic pigments compared to non-treated plants under salinity stress. With increasing salinity, the amount of ion leakage increased until salinity of 100 mM without PS treatment and reached to its highest level (64.2%). While 1.5% PS treatment decreased leaf ion leakage significantly (P≤ 0.01) in treated vines in compared to other untreated plants. Unlike insoluble sugar, the content of soluble sugar and proline as two osmoregulant has shown an increasing trend in the response to salinity and the application of potassium and reached to highest in 100 Mm NaCl and 1.5% PS treatments. Also, the PS foliar application use of sulfate-potassium leaf with increasing potassium concentration and then cell Na+ /K+ adjusting, increased the leaf N, K, Mg and Ca concentration in compared to non- PS sprayed plants.
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Claims 7
Claim · model-written summary
Salinity decreased plant height, leaf number, leaf area and regrowth.
- Treatment
- salinitye0
- Outcome
- plant height, leaves number, leaves area and re-growthe0
- Direction
- decreasede0
VitisNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity decreased plant height, leaves number, leaves area and re-growth”
t0“grapevine”
Claim · model-written summary
Foliar potassium mitigated salinity effects on morphology.
- Treatment
- foliar application of potassiume0
- Outcome
- negative impacts of salinity on these morphometric indicese0
- Direction
- mitigatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar application of potassium mitigated the negative impacts of salinity on these morphometric indices”
t0“grapevine”
Claim · model-written summary
Applying 1.5% potassium stabilized photosynthetic pigments against untreated plants under salinity.
- Treatment
- 1.5% potassiume0
- Outcome
- photosynthetic pigmentse0
- Direction
- stabilitye0
- Comparator
- non-treated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of 1.5% potassium resulted in the stability of photosynthetic pigments compared to non-treated plants under salinity stress”
t0“grapevine”
Claim · model-written summary
Ion leakage increased with salinity and peaked at 64.2% without potassium sulfate.
- Treatment
- increasing salinitye0
- Outcome
- ion leakagee0
- Direction
- increasede0
- Value
- 64.2%e0
- Comparator
- without PS treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increasing salinity, the amount of ion leakage increased until salinity of 100 mM without PS treatment and reached to its highest level (64.2%).”
t0“grapevine”
Claim · model-written summary
Potassium sulfate at 1.5% significantly decreased leaf ion leakage.
- Treatment
- 1.5% PS treatmente0
- Outcome
- leaf ion leakagee0
- Direction
- decreasede0
- Comparator
- other untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1.5% PS treatment decreased leaf ion leakage significantly (P≤ 0.01) in treated vines in compared to other untreated plants.”
t0“grapevine”
Claim · model-written summary
Soluble sugar and proline increased with salinity and potassium treatment.
- Treatment
- salinity and the application of potassiume0
- Outcome
- content of soluble sugar and prolinee0
- Direction
- increasinge0
- Qualifier
- 100 Mm NaCl and 1.5% PS treatmentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the content of soluble sugar and proline as two osmoregulant has shown an increasing trend in the response to salinity and the application of potassium and reached to highest in 100 Mm NaCl and 1.5% PS treatments”
t0“grapevine”
Claim · model-written summary
Foliar potassium sulfate increased leaf N, K, Mg and Ca concentrations.
- Treatment
- PS foliar applicatione0
- Outcome
- leaf N, K, Mg and Ca concentratione0
- Direction
- increasede0
- Comparator
- non- PS sprayed plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PS foliar application use of sulfate-potassium leaf with increasing potassium concentration and then cell Na+ /K+ adjusting, increased the leaf N, K, Mg and Ca concentration in compared to non- PS sprayed plants.”
t0“grapevine”
The same questions in other papers
salinity · growth · VitisResults differ
24 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
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See all 26 papers →application · nutrient: content · VitisPositive and negative results
34 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
33 papers more in this group
See all 37 papers →potassium · physiology: photosynthesis · VitisResults agree
1 paper in the same direction as this paper
- positive
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.