Abstract
Silicon has beneficial effects on many crops, mainly under biotic and abiotic stresses. Silicon can affect biochemical, physiological, and photosynthetic processes and, consequently, alleviates drought stress. However, the effects of Si on potato ( Solanum tuberosum L.) plants under drought stress are still unknown. The objective of this study was to evaluate the effect of Si supply on some biochemical characteristics and yield of potato tubers, either exposed or not exposed to drought stress. The experiment was conducted in pots containing 50 dm 3 of a Typic Acrortox soil (33% clay, 4% silt, and 63% sand). The treatments consisted of the absence or presence of Si application (0 and 284.4 mg dm −3 ), through soil amelioration with dolomitic lime and Ca and Mg silicate, and in the absence or presence of water deficit (−0.020 MPa and −0.050 MPa soil water potential, respectively), with eight replications. Silicon application and water deficit resulted in the greatest Si concentration in potato leaves. Proline concentrations increased under lower water availability and higher Si availability in the soil, which indicates that Si may be associated with plant osmotic adjustment. Water deficit and Si application decreased total sugars and soluble proteins concentrations in the leaves. Silicon application reduced stalk lodging and increased mean tuber weight and, consequently, tuber yield, especially in the absence of water stress.
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Claims 7
Claim · model-written summary
Silicon application with water deficit produced the greatest leaf silicon concentration in potato.
- Taxon
- potato
Solanum tuberosume0 - Organ / stage
- leavese0
- Treatment
- Silicon application and water deficite0
- Outcome
- Si concentratione0
- Direction
- greateste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silicon application and water deficit resulted in the greatest Si concentration in potato leaves.”
Claim · model-written summary
Proline concentrations increased with lower water and higher soil silicon availability.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- lower water availability and higher Si availability in the soile0
- Outcome
- Proline concentrationse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Proline concentrations increased under lower water availability and higher Si availability in the soil”
t0“Potato”
Claim · model-written summary
Silicon may be associated with potato osmotic adjustment.
- Taxon
- PotatoSolanum tuberosumt0
- Compound
- Sie0
- Outcome
- plant osmotic adjustmente0
- Qualifier
- may be associatede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which indicates that Si may be associated with plant osmotic adjustment”
t0“Potato”
Claim · model-written summary
Water deficit decreased leaf total sugar and soluble protein concentrations.
- Taxon
- PotatoSolanum tuberosumt0
- Organ / stage
- leavese0
- Treatment
- Water deficite0
- Outcome
- total sugars and soluble proteins concentrationse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water deficit and Si application decreased total sugars and soluble proteins concentrations in the leaves.”
t0“Potato”
Claim · model-written summary
Silicon application decreased leaf total sugar and soluble protein concentrations.
- Taxon
- PotatoSolanum tuberosumt0
- Organ / stage
- leavese0
- Treatment
- Si applicatione0
- Outcome
- total sugars and soluble proteins concentrationse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water deficit and Si application decreased total sugars and soluble proteins concentrations in the leaves.”
t0“Potato”
Claim · model-written summary
Silicon reduced potato stalk lodging.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- Silicon applicatione0
- Outcome
- stalk lodginge0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silicon application reduced stalk lodging”
t0“Potato”
Claim · model-written summary
Silicon increased mean tuber weight and tuber yield, especially without water stress.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- Silicon applicatione0
- Outcome
- mean tuber weight and, consequently, tuber yielde0
- Direction
- increasede0
- Qualifier
- especially in the absence of water stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silicon application reduced stalk lodging and increased mean tuber weight and, consequently, tuber yield, especially in the absence of water stress.”
t0“Potato”
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silicon atom · growth · Solanum tuberosum (potato)Positive and negative results
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- no effect
- positive
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See all 10 papers →silicon atom · yield · Solanum tuberosum (potato)Results agree
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- positive
- positive
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See all 8 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.