Paper · 2011 · Egyptian Journal of Phytopathology

Efficiency of some Abiotic Treatments to Control Guava Fruit Rot Caused by Phomopsis psidii and its Effect on Fruit Quality

Marzouk Abdel-Latif; Hanaa Armanious; Mamdoh Ismail

20
claims
39
verbatim quotes
0
citations
4
research areas
✓
Open access

Abstract

Four isolates of Phomopsis psidii were obtained from naturally rotted fruits of guava, cvs. Maamora and Balady. They were proved to be pathogenic to guava fruits at and at room temperature. Disease incidence (DI%) and disease incidence (DS%) were greatly reduce at 8±1°C compared with 100% Dl and 83% DS were recorded at room temperature, 15 days after inoculation. Fruits pre-treated with salicylic or citric acids showed highest decrease in DI and DS% of rot when fruits were stored at room temperature, whereas no infection was recorded in SA-treated fruits after 15 days of cold storage. When fruits were stored on 8±1°C, then treated with CaCl2 or SA and stored at room temperature, no symptoms were detected till 6 days, shelf-life period. Pre-treated fruits with CaCl2 and SA, also, exhibited the lowest loss of weight values, either in inoculated or non-inoculated fruits. Total soluble solids content increased gradually, in all treatments, till the end of experiment in non-infected fruits, but in case of infected ones, the TSS% decreased after 10 days of stored period, except in fruits treated with CA which exhibited 9% increase until the end of storage period. Ascorbic acid (AA) % decreased gradually weight advanced storage. The percent of reduction in AA was higher in infected fruits than in non-infected ones. Fruits pre-treated with CaCl2, SA or CA contained AA more than control. The highest values of total sugar content (8.8 - 8.3 %) were recorded in fruits treated with SA, CA and H2O2, respectively, while the least values (7.4%) was recorded in fruits treated with CaCl2 (27.1% increase than control).

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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 20

Observationobservedoriginal resultmeasured

Claim · model-written summary

Four isolates from rotted guava fruit were pathogenic to guava fruit.

Material
Maamora and Baladye0
Interactor
Phomopsis psidiie0pathogen
Outcome
pathogenic to guava fruitse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Four isolates of Phomopsis psidii were obtained from naturally rotted fruits of guava, cvs. Maamora and Balady. They were proved to be pathogenic to guava fruits”

✓ located verbatim in the source · abstract, characters 0–161 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cold storage reduced disease incidence relative to room temperature.

Treatment
8±1°Ce0
Outcome
Disease incidence (DI%)e0
Direction
greatly reducee0
Qualifier
15 days after inoculatione0
Comparator
room temperaturee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Guava”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
e0

“Disease incidence (DI%) and disease incidence (DS%) were greatly reduce at 8±1°C compared with 100% Dl and 83% DS were recorded at room temperature, 15 days after inoculation”

✓ located verbatim in the source · abstract, characters 190–364 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cold storage reduced the reported disease severity measure relative to room temperature.

Treatment
8±1°Ce0
Outcome
disease incidence (DS%)e0
Direction
greatly reducee0
Comparator
room temperaturee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Guava”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
e0

“Disease incidence (DI%) and disease incidence (DS%) were greatly reduce at 8±1°C compared with 100% Dl and 83% DS were recorded at room temperature, 15 days after inoculation”

✓ located verbatim in the source · abstract, characters 190–364 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Salicylic acid pretreatment produced the greatest decrease in fruit rot at room temperature.

Treatment
salicylice0
Outcome
DI and DS% of rote0
Direction
highest decreasee0
Setting
room temperaturee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Guava”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
e0

“Fruits pre-treated with salicylic or citric acids showed highest decrease in DI and DS% of rot when fruits were stored at room temperature”

✓ located verbatim in the source · abstract, characters 366–504 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Citric acid pretreatment produced the greatest decrease in fruit rot at room temperature.

Treatment
citric acidse0
Outcome
DI and DS% of rote0
Direction
highest decreasee0
Setting
room temperaturee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Guava”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
e0

“Fruits pre-treated with salicylic or citric acids showed highest decrease in DI and DS% of rot when fruits were stored at room temperature”

✓ located verbatim in the source · abstract, characters 366–504 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Salicylic-acid treated fruit showed no infection after 15 days cold storage.

Treatment
SA-treatede0
Outcome
no infectione0
Qualifier
15 days of cold storagee0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Guava”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
e0

“no infection was recorded in SA-treated fruits after 15 days of cold storage”

✓ located verbatim in the source · abstract, characters 514–590 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium chloride treatment after cold storage prevented symptoms for six days at room temperature.

Treatment
CaCl2e0
Outcome
no symptomse0
Value
6 dayse0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Guava”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
e0

“Fruits were stored on 8±1°C, then treated with CaCl2 or SA and stored at room temperature, no symptoms were detected till 6 days”

✓ located after whitespace/quote normalisation · abstract, characters 597–725 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Salicylic acid treatment after cold storage prevented symptoms for six days at room temperature.

Treatment
SAe0
Outcome
no symptomse0
Value
6 dayse0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Guava”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
e0

“Fruits were stored on 8±1°C, then treated with CaCl2 or SA and stored at room temperature, no symptoms were detected till 6 days”

✓ located after whitespace/quote normalisation · abstract, characters 597–725 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium chloride pretreatment gave the lowest fruit weight loss.

Treatment
CaCl2e0
Outcome
loss of weighte0
Direction
loweste0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Guava”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
e0

“Pre-treated fruits with CaCl2 and SA, also, exhibited the lowest loss of weight values”

✓ located verbatim in the source · abstract, characters 746–832 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Salicylic acid pretreatment gave the lowest fruit weight loss.

Treatment
SAe0
Outcome
loss of weighte0
Direction
loweste0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Guava”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
e0

“Pre-treated fruits with CaCl2 and SA, also, exhibited the lowest loss of weight values”

✓ located verbatim in the source · abstract, characters 746–832 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Soluble solids rose during storage in uninfected fruit.

Outcome
Total soluble solids contente0
Direction
increased graduallye0
Qualifier
non-infected fruitse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Guava”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
e0

“Total soluble solids content increased gradually, in all treatments, till the end of experiment in non-infected fruits”

✓ located verbatim in the source · abstract, characters 881–999 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Soluble solids declined after ten days in infected fruit.

Outcome
TSS%e0
Direction
decreasede0
Qualifier
after 10 days of stored periode0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Guava”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
e0

“in case of infected ones, the TSS% decreased after 10 days of stored period”

✓ located verbatim in the source · abstract, characters 1005–1080 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Citric acid treated infected fruit instead had a 9% rise in soluble solids.

Treatment
CAe0
Outcome
9% increasee0
Direction
increasee0
Value
9%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Guava”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
e0

“except in fruits treated with CA which exhibited 9% increase until the end of storage period”

✓ located verbatim in the source · abstract, characters 1082–1174 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Ascorbic acid declined during storage.

Outcome
Ascorbic acid (AA) %e0
Direction
decreasede0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Guava”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
e0

“Ascorbic acid (AA) % decreased gradually weight advanced storage”

✓ located verbatim in the source · abstract, characters 1176–1240 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Ascorbic acid declined more in infected than uninfected fruit.

Outcome
percent of reduction in AAe0
Direction
highere0
Comparator
non-infected onese0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Guava”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
e0

“percent of reduction in AA was higher in infected fruits than in non-infected ones”

✓ located verbatim in the source · abstract, characters 1246–1328 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Calcium chloride pretreatment preserved more ascorbic acid than control.

Treatment
CaCl2e0
Outcome
AAe0
Direction
moree0
Comparator
controle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Guava”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
e0

“Fruits pre-treated with CaCl2, SA or CA contained AA more than control”

✓ located verbatim in the source · abstract, characters 1330–1400 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Salicylic acid pretreatment preserved more ascorbic acid than control.

Treatment
SAe0
Outcome
AAe0
Direction
moree0
Comparator
controle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Guava”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
e0

“Fruits pre-treated with CaCl2, SA or CA contained AA more than control”

✓ located verbatim in the source · abstract, characters 1330–1400 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Citric acid pretreatment preserved more ascorbic acid than control.

Treatment
CAe0
Outcome
AAe0
Direction
moree0
Comparator
controle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Guava”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
e0

“Fruits pre-treated with CaCl2, SA or CA contained AA more than control”

✓ located verbatim in the source · abstract, characters 1330–1400 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

SA, CA and H2O2 treatments gave the highest total sugar values.

Treatment
SA, CA and H2O2e0
Outcome
total sugar contente0
Direction
higheste0
Value
8.8 - 8.3 %e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Guava”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
e0

“highest values of total sugar content (8.8 - 8.3 %) were recorded in fruits treated with SA, CA and H2O2, respectively”

✓ located verbatim in the source · abstract, characters 1406–1524 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

CaCl2 treatment had the least reported sugar value, 7.4%.

Treatment
CaCl2e0
Outcome
least valuese0
Direction
leaste0
Value
7.4%e0
Qualifier
27.1% increase than controle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Guava”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
e0

“least values (7.4%) was recorded in fruits treated with CaCl2 (27.1% increase than control)”

✓ located verbatim in the source · abstract, characters 1536–1627 · show in text ↑

salicylic acid · disease · Psidium guajava (guava)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

2 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive
See all 4 papers →

citric acid · disease · Psidium guajava (guava)Positive and negative results

6 papers: 5 positive, 1 negative or no effect

4 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

calcium chloride dihydrate · disease · Psidium guajava (guava)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 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.