Abstract
Silicon (Si) has been reported to benefit plant growth and stress resistance. This work aimed to find out an optimal method of Si application to enhance the resistance of strawberry ( Fragaria × ananassa Duch.) transplants to high temperatures, commonly experienced in the summer when strawberries are propagated for greenhouse production in Korea. Plants of strawberry “Sulhyang”, “Maehyang”, and “Kuemsil” were subjected to one of five treatments before the cutting propagation: no treatment (control), substrate dressing of a water-soluble silicate fertilizer, substrate drench of 75 mg·L −1 Si (from potassium silicate) to the mother plants, or foliar spray of 75 mg·L −1 Si to either the mother plants or daughter plants. Half of the daughter plants in each Si treatment received continued application of Si through either substrate dressing of a water-soluble silicate fertilizer, substrate drench, or foliar spray after the cutting propagation. A high temperature (43°C) resistance test was conducted in plant growth chambers for 7 days with a 16-h photoperiod with a light intensity of 300 mmol·m −2 ·s −1 PPFD. During the high temperature test, the rate of decline in the photosynthesis was lower in plants treated with Si than in the control. After the high temperature test, it was observed that Si application significantly increased the shoot fresh weight of transplants. Moreover, the contents of sugars, proteins, and enzymatic (CAT, SOD, POD, and APX) and non-enzymatic (anthocyanin and proline) antioxidants were higher in plants treated with Si throughout the entire propagation period, compared to the control and plants only treated with Si before or after the cutting propagation. Overall, the Si application improved the growth of the transplants regardless of the application method used. Moreover, spraying the daughter plants with Si, and continually spraying the transplants were found to be the best and is recommended to increase the resistance of strawberries to high temperatures during propagation.
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Claims 6
Claim · model-written summary
Silicon reduced the rate of photosynthesis decline during heat testing.
- Taxon
- Strawberry
_single2.jpg?width=60)
Fragaria ×ananassat0 - Treatment
- Sie0
- Outcome
- rate of decline in the photosynthesise0
- Direction
- lowere0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“the rate of decline in the photosynthesis was lower in plants treated with Si than in the control”
t0“Strawberry Plants”
Claim · model-written summary
Silicon significantly increased shoot fresh weight after heat testing.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Si applicatione0
- Outcome
- shoot fresh weight of transplantse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si application significantly increased the shoot fresh weight of transplants”
t0“Strawberry Plants”
Claim · model-written summary
Continuous silicon application raised sugar and protein contents relative to controls and partial applications.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Si throughout the entire propagation periode0
- Outcome
- contents of sugars, proteinse0
- Direction
- highere0
- Comparator
- the control and plants only treated with Si before or after the cutting propagatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the contents of sugars, proteins, and enzymatic (CAT, SOD, POD, and APX) and non-enzymatic (anthocyanin and proline) antioxidants were higher in plants treated with Si throughout the entire propagation period, compared to the control and plants only treated with Si before or after the cutting propagation”
t0“Strawberry Plants”
Claim · model-written summary
Continuous silicon application raised antioxidant contents relative to controls and partial applications.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Si throughout the entire propagation periode0
- Outcome
- enzymatic (CAT, SOD, POD, and APX) and non-enzymatic (anthocyanin and proline) antioxidantse0
- Direction
- highere0
- Comparator
- the control and plants only treated with Si before or after the cutting propagatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enzymatic (CAT, SOD, POD, and APX) and non-enzymatic (anthocyanin and proline) antioxidants were higher in plants treated with Si throughout the entire propagation period, compared to the control and plants only treated with Si before or after the cutting propagation”
t0“Strawberry Plants”
Claim · model-written summary
Silicon improved transplant growth across application methods.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- Si applicatione0
- Outcome
- growth of the transplantse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si application improved the growth of the transplants regardless of the application method used”
t0“Strawberry Plants”
Claim · model-written summary
The authors recommend spraying daughter plants and continuing spray on transplants for heat resistance.
- Taxon
- strawberriesFragaria ×ananassae0
- Outcome
- spraying the daughter plants with Si, and continually spraying the transplantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spraying the daughter plants with Si, and continually spraying the transplants were found to be the best and is recommended to increase the resistance of strawberries to high temperatures during propagation”
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