Abstract
The current research addressed the effect of fertilizers containing Ca 2+ and Mg 2+ on cassava ( Manihot esculenta Crantz) storage roots (CSRs) during postharvest physiological deterioration (PPD). Cassava PPD tolerant and susceptible genotypes were grown in pots and treated with fertilizers containing Ca 2+ or Mg 2+ . Eight months after planting, CSRs were harvested and stored at room temperature for 30 d. Morphological changes, antioxidant activities, mineral content, and starch content were determined. The results indicated that application of Ca 2+ and Mg 2+ fertilizers delayed PPD for >10 d in the susceptible genotype (SC5), but Mg 2+ fertilizer elevated PPD in the tolerant genotype (QZ1). The Ca 2+ fertilizer significantly increased fresh weight. A significant decrease in starch content in CSRs of SC5 treated with Mg 2+ fertilizer was observed. The Mg 2+ fertilizer slightly enhanced Ca 2+ , Mg 2+ , and K + contents in both genotypes. In addition, Ca 2+ fertilization led to a significant increase in H 2 O 2 content and subsequent elevation of activities of catalase and peroxidase in both genotypes, especially at harvest. Our findings suggest that soil fertilization with fertilizers containing Ca 2+ and Mg 2+ may play a distinct role in PPD delay in CSRs.
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Claims 8
Claim · model-written summary
Calcium fertilizer delayed deterioration for more than 10 days in SC5.
- Taxon
- cassava
Manihot esculentae0 - Material
- SC5e1
- Organ / stage
- storage rootse0
- Treatment
- Ca 2+e1
- Outcome
- PPDe1
- Direction
- delayede1
- Value
- >10 de1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava ( Manihot esculenta Crantz) storage roots (CSRs)”
e1“application of Ca 2+ and Mg 2+ fertilizers delayed PPD for >10 d in the susceptible genotype (SC5)”
Claim · model-written summary
Magnesium fertilizer delayed deterioration for more than 10 days in SC5.
- Taxon
- cassavaManihot esculentae0
- Material
- SC5e1
- Treatment
- Mg 2+e1
- Outcome
- PPDe1
- Direction
- delayede1
- Value
- >10 de1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava ( Manihot esculenta Crantz) storage roots (CSRs)”
e1“application of Ca 2+ and Mg 2+ fertilizers delayed PPD for >10 d in the susceptible genotype (SC5)”
Claim · model-written summary
Magnesium fertilizer elevated deterioration in QZ1.
- Taxon
- cassavaManihot esculentae0
- Material
- QZ1e1
- Treatment
- Mg 2+ fertilizere1
- Outcome
- PPDe1
- Direction
- elevatede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava ( Manihot esculenta Crantz) storage roots (CSRs)”
e1“Mg 2+ fertilizer elevated PPD in the tolerant genotype (QZ1)”
Claim · model-written summary
Calcium fertilizer increased fresh weight.
- Taxon
- cassavaManihot esculentae0
- Treatment
- Ca 2+ fertilizere1
- Outcome
- fresh weighte1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava ( Manihot esculenta Crantz) storage roots (CSRs)”
e1“The Ca 2+ fertilizer significantly increased fresh weight”
Claim · model-written summary
Magnesium fertilizer decreased starch content in SC5 storage roots.
- Taxon
- cassavaManihot esculentae0
- Material
- SC5e1
- Treatment
- Mg 2+ fertilizere1
- Outcome
- starch contente1
- Direction
- decreasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava ( Manihot esculenta Crantz) storage roots (CSRs)”
e1“A significant decrease in starch content in CSRs of SC5 treated with Mg 2+ fertilizer was observed”
Claim · model-written summary
Magnesium fertilizer slightly enhanced calcium, magnesium, and potassium contents in both genotypes.
- Taxon
- cassavaManihot esculentae0
- Treatment
- Mg 2+ fertilizere1
- Outcome
- Ca 2+ , Mg 2+ , and K + contentse1
- Direction
- slightly enhancede1
- Qualifier
- both genotypese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava ( Manihot esculenta Crantz) storage roots (CSRs)”
e1“The Mg 2+ fertilizer slightly enhanced Ca 2+ , Mg 2+ , and K + contents in both genotypes”
Claim · model-written summary
Calcium fertilization significantly increased hydrogen peroxide content.
- Taxon
- cassavaManihot esculentae0
- Treatment
- Ca 2+ fertilizatione1
- Outcome
- H 2 O 2 contente1
- Direction
- increasee1
- Qualifier
- in both genotypes, especially at harveste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava ( Manihot esculenta Crantz) storage roots (CSRs)”
e1“Ca 2+ fertilization led to a significant increase in H 2 O 2 content and subsequent elevation of activities of catalase and peroxidase in both genotypes, especially at harvest”
Claim · model-written summary
Calcium fertilization elevated catalase and peroxidase activities in both genotypes, particularly at harvest.
- Taxon
- cassavaManihot esculentae0
- Treatment
- Ca 2+ fertilizatione1
- Outcome
- activities of catalase and peroxidasee1
- Direction
- elevatione1
- Qualifier
- in both genotypes, especially at harveste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cassava ( Manihot esculenta Crantz) storage roots (CSRs)”
e1“Ca 2+ fertilization led to a significant increase in H 2 O 2 content and subsequent elevation of activities of catalase and peroxidase in both genotypes, especially at harvest”
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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.