Abstract
Postharvest quality maintenance of tomatoes is very crucial because of its perishable nature. Calcium, directly involved in the physiological process and enzymatic activities, thereby helps in maintaining the postharvest quality. Increasing calcium concentration reduces respiration and ethylene production in succession; it increases the shelf life and quality of tomatoes. Hence, a field experiment was conducted with different sources and levels of Ca, namely, calcium sulfate, calcium nitrate, calcium silicate, poultry manure, and press mud applied at 0, 20, 40, 60, and 80 kg Ca ha -1 . Ripened tomatoes were harvested from each plot. Eight fruits were selected randomly from every treatment and divided into destructive and nondestructive samples, arranged in a factorial completely randomized block design for conducting a storage study. Shelf life, ascorbic acid, lycopene, beta-carotene, and polygalacturonase were analyzed at a 5-day interval up to 15 days. The results revealed that the effect of calcium sources had significant (p 0.05) impacts on fruit quality. The tomatoes harvested from poultry manure retained the highest shelf life (15 days) at 80 kg Ca ha -1 and the highest ascorbic acid content (37.5 mg 100 g -1 ) at 60 kg Ca ha -1 . However, the lowest lycopene (2.86 mg 100 g -1 ), beta-carotene (1.81 mg 100 g -1 ), and lesser polygalacturonase activity (1.99 kj m -2 ) were obtained with poultry manure at 80 kg Ca ha -1 . From the results procured in this experiment, it was inferred that the application of poultry manure at 80 kg Ca ha -1 was found to be effective in improving the quality attributes of hybrid tomato as it imparts multiple essential nutrients along with calcium.
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Claims 7
Claim · model-written summary
Calcium sources significantly affected tomato fruit quality.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- calcium sourcese0
- Outcome
- fruit qualitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results revealed that the effect of calcium sources had significant (p 0.05) impacts on fruit quality.”
t0“tomato”
Claim · model-written summary
Poultry manure at 80 kg Ca ha -1 yielded the highest shelf life of 15 days.
- Taxon
- tomatoesSolanum lycopersicume0
- Treatment
- poultry manuree0
- Outcome
- shelf lifee0
- Direction
- higheste0
- Value
- 15 dayse0
- Qualifier
- 80 kg Ca ha -1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The tomatoes harvested from poultry manure retained the highest shelf life (15 days) at 80 kg Ca ha -1”
Claim · model-written summary
Poultry manure at 60 kg Ca ha -1 yielded the highest ascorbic acid content of 37.5 mg 100 g -1.
- Taxon
- tomatoesSolanum lycopersicume0
- Treatment
- poultry manuree0
- Outcome
- ascorbic acid contente0
- Direction
- higheste0
- Value
- 37.5 mg 100 g -1e0
- Qualifier
- 60 kg Ca ha -1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The tomatoes harvested from poultry manure retained the highest shelf life (15 days) at 80 kg Ca ha -1 and the highest ascorbic acid content (37.5 mg 100 g -1 ) at 60 kg Ca ha -1”
Claim · model-written summary
Poultry manure at 80 kg Ca ha -1 gave the lowest lycopene content of 2.86 mg 100 g -1.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- poultry manuree0
- Outcome
- lycopenee0
- Direction
- loweste0
- Value
- 2.86 mg 100 g -1e0
- Qualifier
- 80 kg Ca ha -1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the lowest lycopene (2.86 mg 100 g -1 ), beta-carotene (1.81 mg 100 g -1 ), and lesser polygalacturonase activity (1.99 kj m -2 ) were obtained with poultry manure at 80 kg Ca ha -1”
t0“tomato”
Claim · model-written summary
Poultry manure at 80 kg Ca ha -1 gave beta-carotene content of 1.81 mg 100 g -1, among the lowest reported.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- poultry manuree0
- Outcome
- beta-carotenee0
- Direction
- loweste0
- Value
- 1.81 mg 100 g -1e0
- Qualifier
- 80 kg Ca ha -1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the lowest lycopene (2.86 mg 100 g -1 ), beta-carotene (1.81 mg 100 g -1 ), and lesser polygalacturonase activity (1.99 kj m -2 ) were obtained with poultry manure at 80 kg Ca ha -1”
t0“tomato”
Claim · model-written summary
Poultry manure at 80 kg Ca ha -1 gave lower polygalacturonase activity of 1.99 kj m -2.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- poultry manuree0
- Gene
- polygalacturonasee0
- Outcome
- polygalacturonase activitye0
- Direction
- lessere0
- Value
- 1.99 kj m -2e0
- Qualifier
- 80 kg Ca ha -1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lesser polygalacturonase activity (1.99 kj m -2 ) were obtained with poultry manure at 80 kg Ca ha -1”
t0“tomato”
Claim · model-written summary
The authors judged poultry manure at 80 kg Ca ha -1 effective for improving hybrid tomato quality.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- hybrid tomatoe0
- Treatment
- poultry manure at 80 kg Ca ha -1e0
- Outcome
- improving the quality attributese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of poultry manure at 80 kg Ca ha -1 was found to be effective in improving the quality attributes of hybrid tomato as it imparts multiple essential nutrients along with calcium.”
The same questions in other papers
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- negative
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154 papers in the same direction as this paper · 14 in the opposite direction · 2 reporting no difference from an alternative
- positive
- negative
- negative
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See all 171 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.