Abstract
The effect of different concentrations of ascorbate (As) at 0, 0.25, 0.5 and 1.0 mM, salicylate (Sa) at 0, 0.25, 0.5 and 1.0 mM , in addition to silicate (Si) at 0, 100, 250, and 500 ppm on potato plant subjected to different water regimes; three days interval (control), four days interval (4DI) and five days interval (5DI). Photosynthetic pigments, free proline and malonyldialdehyde (MDA) concentrations, and plant dry matter percentage were determined. Also, tuber yield was recorded and the percentage of tuber dry matter was determined. Water deficit resulted in significant reduction in tuber yield, plant dry matter percentage beside significant increase in free proline and MDA contents. Meanwhile, effects on photosynthetic pigments content and tuber dry matter were inconsistent. The effects of using different concentrations of ascorbate (As) under water deficit provide a superior effect of As at 0.25 mM. Data revealed that ascorbate treatment enhanced tuber yield by improved Chl (a and b) and carotenoids content, with a promoted reduction in free proline content and MDA. Salicylate (Sa) treatment under water deficit exhibited partial enhancement in photosynthetic pigments; where, Sa (1.0 mM) increased Chl a under all water regimes and Chl b at control and 4DI water regimes. While Sa (0.5 mM) improved carotenoids content at 5DI water regimes. The positive effect of salicylate on tuber yield was obvious only at 5DI water regime; as salicylate concentrations (0.25, 0.5 and 1.0 mM) enhanced tuber yield by 65.61, 21.8 and 33.33%. Data exhibited that these increments were concomitant with a reduction in free proline content and a slight increase in tuber dry matter. Interactive effects of Silicate (Si)/water deficit were variable with the concentration under the used water deficit regimes, where, Si (100 ppm), showed higher means of Chl (a and b) with a reduction in free proline contents, at both 4DI and 5DI. The higher tuber yield resulted only at 5DI. More pronounced effect, Si (250 ppm) exhibited increment of photosynthetic pigments, plant dry matter, tuber yield, along with slight reduction in MDA, particularly at 5DI. It could be concluded that silicate treatment alleviated water stress by improving carotenoids content, plant dry matter and reducing both free proline and MDA contents, which attributes enhancement in tuber yield under water deficit. Generally, lower concentrations of As, Sa and Si showed their benefits under higher water stress regimes.
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Claims 20
Claim · model-written summary
Water deficit significantly reduced potato tuber yield and plant dry matter.
- Taxon
- POTATO PLANT
Solanum tuberosumt0 - Treatment
- Water deficite0
- Outcome
- tuber yield, plant dry matter percentagee0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water deficit resulted in significant reduction in tuber yield, plant dry matter percentage”
t0“POTATO PLANT”
Claim · model-written summary
Water deficit significantly increased free proline and MDA contents.
- Taxon
- POTATO PLANTSolanum tuberosumt0
- Treatment
- Water deficite0
- Outcome
- free proline and MDA contentse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water deficit resulted in significant reduction in tuber yield, plant dry matter percentage beside significant increase in free proline and MDA contents”
t0“POTATO PLANT”
Claim · model-written summary
Water deficit effects on photosynthetic pigments and tuber dry matter were inconsistent.
- Taxon
- POTATO PLANTSolanum tuberosumt0
- Treatment
- Water deficite1
- Outcome
- photosynthetic pigments content and tuber dry mattere0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects on photosynthetic pigments content and tuber dry matter were inconsistent”
e1“Water deficit”
t0“POTATO PLANT”
Claim · model-written summary
Under water deficit, 0.25 mM ascorbate had the superior effect among tested concentrations.
- Taxon
- POTATO PLANTSolanum tuberosumt0
- Treatment
- As at 0.25 mMe0
- Outcome
- superior effecte0
- Direction
- superiore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of using different concentrations of ascorbate (As) under water deficit provide a superior effect of As at 0.25 mM”
t0“POTATO PLANT”
Claim · model-written summary
Ascorbate enhanced tuber yield under water deficit.
- Taxon
- POTATO PLANTSolanum tuberosumt0
- Treatment
- ascorbate treatmente0
- Outcome
- tuber yielde0
- Direction
- enhancede0
- Qualifier
- water deficite1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ascorbate treatment enhanced tuber yield”
e1“The effects of using different concentrations of ascorbate (As) under water deficit”
t0“POTATO PLANT”
Claim · model-written summary
Ascorbate improved chlorophyll a and b and carotenoid content.
- Taxon
- POTATO PLANTSolanum tuberosumt0
- Treatment
- ascorbate treatmente0
- Outcome
- Chl (a and b) and carotenoids contente0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ascorbate treatment enhanced tuber yield by improved Chl (a and b) and carotenoids content”
t0“POTATO PLANT”
Claim · model-written summary
Ascorbate reduced free proline and MDA.
- Taxon
- POTATO PLANTSolanum tuberosumt0
- Treatment
- ascorbate treatmente0
- Outcome
- free proline content and MDAe0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ascorbate treatment enhanced tuber yield by improved Chl (a and b) and carotenoids content, with a promoted reduction in free proline content and MDA”
t0“POTATO PLANT”
Claim · model-written summary
Salicylate at 1.0 mM increased chlorophyll a under all water regimes.
- Taxon
- POTATO PLANTSolanum tuberosumt0
- Treatment
- Sa (1.0 mM)e0
- Outcome
- Chl ae0
- Direction
- increasede0
- Qualifier
- all water regimese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sa (1.0 mM) increased Chl a under all water regimes”
t0“POTATO PLANT”
Claim · model-written summary
Salicylate at 1.0 mM increased chlorophyll b under control and 4DI regimes.
- Taxon
- POTATO PLANTSolanum tuberosumt0
- Treatment
- Sa (1.0 mM)e0
- Outcome
- Chl be0
- Direction
- increasede0
- Qualifier
- control and 4DI water regimese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sa (1.0 mM) increased Chl a under all water regimes and Chl b at control and 4DI water regimes”
t0“POTATO PLANT”
Claim · model-written summary
Salicylate at 0.5 mM improved carotenoids under 5DI.
- Taxon
- POTATO PLANTSolanum tuberosumt0
- Treatment
- Sa (0.5 mM)e0
- Outcome
- carotenoids contente0
- Direction
- improvede0
- Qualifier
- 5DI water regimese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sa (0.5 mM) improved carotenoids content at 5DI water regimes”
t0“POTATO PLANT”
Claim · model-written summary
Salicylate at 0.25 mM enhanced tuber yield by 65.61% under 5DI.
- Taxon
- POTATO PLANTSolanum tuberosumt0
- Treatment
- 0.25e0
- Outcome
- tuber yielde0
- Direction
- enhancede0
- Value
- 65.61e0
- Qualifier
- 5DI water regimee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salicylate concentrations (0.25, 0.5 and 1.0 mM) enhanced tuber yield by 65.61, 21.8 and 33.33%”
e1“only at 5DI water regime”
t0“POTATO PLANT”
Claim · model-written summary
Salicylate at 0.5 mM enhanced tuber yield by 21.8% under 5DI.
- Taxon
- POTATO PLANTSolanum tuberosumt0
- Treatment
- 0.5e0
- Outcome
- tuber yielde0
- Direction
- enhancede0
- Value
- 21.8e0
- Qualifier
- 5DI water regimee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salicylate concentrations (0.25, 0.5 and 1.0 mM) enhanced tuber yield by 65.61, 21.8 and 33.33%”
e1“only at 5DI water regime”
t0“POTATO PLANT”
Claim · model-written summary
Salicylate at 1.0 mM enhanced tuber yield by 33.33% under 5DI.
- Taxon
- POTATO PLANTSolanum tuberosumt0
- Treatment
- 1.0 mMe0
- Outcome
- tuber yielde0
- Direction
- enhancede0
- Value
- 33.33%e0
- Qualifier
- 5DI water regimee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salicylate concentrations (0.25, 0.5 and 1.0 mM) enhanced tuber yield by 65.61, 21.8 and 33.33%”
e1“only at 5DI water regime”
t0“POTATO PLANT”
Claim · model-written summary
Salicylate yield gains coincided with lower free proline and slightly higher tuber dry matter.
- Taxon
- POTATO PLANTSolanum tuberosumt0
- Treatment
- salicylate concentrations (0.25, 0.5 and 1.0 mM)e1
- Outcome
- free proline content and a slight increase in tuber dry mattere0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“these increments were concomitant with a reduction in free proline content and a slight increase in tuber dry matter”
e1“salicylate concentrations (0.25, 0.5 and 1.0 mM)”
t0“POTATO PLANT”
Claim · model-written summary
Silicate at 100 ppm raised chlorophyll a and b means under 4DI and 5DI.
- Taxon
- POTATO PLANTSolanum tuberosumt0
- Treatment
- Si (100 ppm)e0
- Outcome
- Chl (a and b)e0
- Direction
- highere0
- Qualifier
- both 4DI and 5DIe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si (100 ppm), showed higher means of Chl (a and b) with a reduction in free proline contents, at both 4DI and 5DI”
t0“POTATO PLANT”
Claim · model-written summary
Silicate at 100 ppm reduced free proline under 4DI and 5DI.
- Taxon
- POTATO PLANTSolanum tuberosumt0
- Treatment
- Si (100 ppm)e0
- Outcome
- free proline contentse0
- Direction
- reductione0
- Qualifier
- both 4DI and 5DIe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si (100 ppm), showed higher means of Chl (a and b) with a reduction in free proline contents, at both 4DI and 5DI”
t0“POTATO PLANT”
Claim · model-written summary
Silicate at 100 ppm gave higher tuber yield only at 5DI.
- Taxon
- POTATO PLANTSolanum tuberosumt0
- Treatment
- Si (100 ppm)e1
- Outcome
- tuber yielde0
- Direction
- highere0
- Qualifier
- 5DIe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The higher tuber yield resulted only at 5DI”
e1“Si (100 ppm)”
t0“POTATO PLANT”
Claim · model-written summary
Silicate at 250 ppm increased pigments, plant dry matter and tuber yield, especially at 5DI.
- Taxon
- POTATO PLANTSolanum tuberosumt0
- Treatment
- Si (250 ppm)e0
- Outcome
- photosynthetic pigments, plant dry matter, tuber yielde0
- Direction
- incremente0
- Qualifier
- particularly at 5DIe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si (250 ppm) exhibited increment of photosynthetic pigments, plant dry matter, tuber yield, along with slight reduction in MDA, particularly at 5DI”
t0“POTATO PLANT”
Claim · model-written summary
Silicate at 250 ppm slightly reduced MDA, particularly at 5DI.
- Taxon
- POTATO PLANTSolanum tuberosumt0
- Treatment
- Si (250 ppm)e0
- Outcome
- MDAe0
- Direction
- reductione0
- Qualifier
- particularly at 5DIe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si (250 ppm) exhibited increment of photosynthetic pigments, plant dry matter, tuber yield, along with slight reduction in MDA, particularly at 5DI”
t0“POTATO PLANT”
Claim · model-written summary
Lower ascorbate, salicylate and silicate concentrations were beneficial under higher water stress.
- Taxon
- POTATO PLANTSolanum tuberosumt0
- Outcome
- benefitse0
- Qualifier
- higher water stress regimese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lower concentrations of As, Sa and Si showed their benefits under higher water stress regimes”
t0“POTATO PLANT”
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