Abstract
Strawberries after petal fall were tagged and sprayed with 2000 ppm CaCl2, Ca-chelate (200 ppm as Ca+2 chelated with a carboxylic acid compound extracted from plant materials), 200 ppm Ca-chelate plus 12.5 ppm boron (CALHARD®, Otsuka Chem.), and 150 ppm of the carboxylic acid compound (the chelating agent) or water as a control. The spray in a repeated 3 or 4 times a week until harvest at the rate of 200 liter · 1000m-2 with a hand pressure sprayer. Tween-20 (0.1%) was added as a wetting agent in all treatments. All Ca treatments increased the fruit firmness, reduced the respiration rate at harvest, and prolonged the postharvest life. Ascorbic acid content in Ca sprayed berries was higher than those of the control not only at harvest but also after 2 days at 20°C. Ca treatments did not significantly affect the titratable acidity, total soluble solids, nor the peel color. The Ca-chelate or with boron was as effective as CaCl2 but at 1/10 the concentration of the latter. The chelating agent per se exhibited no significant effects on improving fruit firmness nor delaying the deterioration.
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Claims 8
Claim · model-written summary
Calcium treatments increased fruit firmness.
- Taxon
- Strawberries
_single2.jpg?width=60)
Fragaria ×ananassat0 - Material
- 'Nyoho't0
- Treatment
- Ca treatmentse0
- Outcome
- fruit firmnesse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
t0“'Nyoho' Strawberries”
e0“All Ca treatments increased the fruit firmness, reduced the respiration rate at harvest, and prolonged the postharvest life.”
Claim · model-written summary
Calcium treatments reduced respiration at harvest.
- Taxon
- StrawberriesFragaria ×ananassat0
- Material
- 'Nyoho't0
- Treatment
- Ca treatmentse0
- Outcome
- respiration rate at harveste0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“'Nyoho' Strawberries”
e0“All Ca treatments increased the fruit firmness, reduced the respiration rate at harvest, and prolonged the postharvest life.”
Claim · model-written summary
Calcium treatments prolonged postharvest life.
- Taxon
- StrawberriesFragaria ×ananassat0
- Material
- 'Nyoho't0
- Treatment
- Ca treatmentse0
- Outcome
- postharvest lifee0
- Direction
- prolongede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“'Nyoho' Strawberries”
e0“All Ca treatments increased the fruit firmness, reduced the respiration rate at harvest, and prolonged the postharvest life.”
Claim · model-written summary
Calcium sprayed berries had higher ascorbic acid content than controls at harvest and after two days.
- Taxon
- StrawberriesFragaria ×ananassat0
- Material
- 'Nyoho't0
- Treatment
- Ca sprayede0
- Outcome
- Ascorbic acid contente0
- Direction
- highere0
- Qualifier
- after 2 days at 20°Ce0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“'Nyoho' Strawberries”
e0“Ascorbic acid content in Ca sprayed berries was higher than those of the control not only at harvest but also after 2 days at 20°C.”
Claim · model-written summary
Calcium treatments did not significantly affect titratable acidity, soluble solids or peel color.
- Taxon
- StrawberriesFragaria ×ananassat0
- Material
- 'Nyoho't0
- Treatment
- Ca treatmentse0
- Outcome
- titratable acidity, total soluble solids, nor the peel colore0
- Direction
- did not significantly affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“'Nyoho' Strawberries”
e0“Ca treatments did not significantly affect the titratable acidity, total soluble solids, nor the peel color.”
Claim · model-written summary
Calcium chelate was as effective as calcium chloride at one tenth the concentration.
- Taxon
- StrawberriesFragaria ×ananassat0
- Material
- 'Nyoho't0
- Treatment
- Ca-chelatee0
- Outcome
- as effectivee0
- Direction
- as effectivee0
- Value
- 1/10 the concentratione0
- Comparator
- CaCl2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“'Nyoho' Strawberries”
e0“The Ca-chelate or with boron was as effective as CaCl2 but at 1/10 the concentration of the latter.”
Claim · model-written summary
Calcium chelate with boron was as effective as calcium chloride at one tenth the concentration.
- Taxon
- StrawberriesFragaria ×ananassat0
- Material
- 'Nyoho't0
- Treatment
- with borone0
- Outcome
- as effectivee0
- Direction
- as effectivee0
- Value
- 1/10 the concentratione0
- Comparator
- CaCl2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“'Nyoho' Strawberries”
e0“The Ca-chelate or with boron was as effective as CaCl2 but at 1/10 the concentration of the latter.”
Claim · model-written summary
The chelating agent did not significantly improve firmness or delay deterioration.
- Taxon
- StrawberriesFragaria ×ananassat0
- Material
- 'Nyoho't0
- Treatment
- chelating agente0
- Outcome
- fruit firmness nor delaying the deterioratione0
- Direction
- no significant effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“'Nyoho' Strawberries”
e0“The chelating agent per se exhibited no significant effects on improving fruit firmness nor delaying the deterioration.”
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