Paper · 2020 · Journal of Plant Protection and Pathology /Journal of Plant Protection and Pathology

Management Powdery Mildew of Marigold (Calendula Officinalis) Using some Nanoparticles and Chitosan

G. A. Abdel-Wahed; A. M. Shaker

7
claims
15
verbatim quotes
2
citations
3
research areas
✓
Open access · cc-by

Abstract

The effect of seven substances, Copper, CuO, ZnO, AlO NPs (8 mg L−1), CuO, ZnO, AlO (8 mg L−1) and chitosan was evaluated under both greenhouse and field conditions during two growing seasons (2017/2018 and 2018/2019) to control powdery mildew disease caused by Erysiphe cichoracearum on marigold (Calendula officinalis). Results have shown that all the treatments tested had decreased disease severity compared to the non-treated control. In this respect, chitosan showed the best effect in decreasing disease severity followed by ZnO NPs. Meanwhile, CuO gave the lowest effect in this respect. The decrease in disease severity of powdery mildew was positively expressed by an increase in crop parameters, i.e. numbers of inflorescence weight, fresh and dry weights of plants, plant height, number of branches and increased chlorophyll ( a and b) and carotenoids.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

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Claims 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

All seven tested substances decreased powdery mildew disease severity relative to the non-treated control on marigold under greenhouse and field conditions.

Taxon
marigold (Calendula officinalis)Calendula officinalise1
Treatment
seven substancese0
Interactor
Erysiphe cichoracearumGolovinomyces cichoracearume1pathogen
Outcome
disease severitye2
Direction
decreasede2
Comparator
non-treated controle2
Setting
greenhouse and field conditionse0

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

Calendula officinalis
Calendula officinalis · TaxonBetty Cai · CC BY-SA 4.0 · Wikimedia Commons ↗
Golovinomyces cichoracearum
Golovinomyces cichoracearum · InteractorJames Lindsey · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The effect of seven substances, Copper, CuO, ZnO, AlO NPs (8 mg L−1), CuO, ZnO, AlO (8 mg L−1) and chitosan was evaluated under both greenhouse and field conditions”

✓ located verbatim in the source · abstract, characters 0–164 · show in text ↑
e1

“to control powdery mildew disease caused by Erysiphe cichoracearum on marigold (Calendula officinalis)”

✓ located verbatim in the source · abstract, characters 218–320 · show in text ↑
e2

“all the treatments tested had decreased disease severity compared to the non-treated control”

✓ located verbatim in the source · abstract, characters 346–438 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chitosan gave the greatest reduction in powdery mildew disease severity on marigold, followed by ZnO NPs.

Taxon
marigold (Calendula officinalis)Calendula officinalise1
Treatment
chitosane3
Interactor
Erysiphe cichoracearumGolovinomyces cichoracearume1pathogen
Outcome
decreasing disease severitye3
Direction
best effecte3
Comparator
ZnO NPse3

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

Calendula officinalis
Calendula officinalis · TaxonBetty Cai · CC BY-SA 4.0 · Wikimedia Commons ↗
Golovinomyces cichoracearum
Golovinomyces cichoracearum · InteractorJames Lindsey · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“to control powdery mildew disease caused by Erysiphe cichoracearum on marigold (Calendula officinalis)”

✓ located verbatim in the source · abstract, characters 218–320 · show in text ↑
e3

“In this respect, chitosan showed the best effect in decreasing disease severity followed by ZnO NPs. Meanwhile, CuO gave the lowest effect in this respect”

✓ located verbatim in the source · abstract, characters 440–594 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

CuO gave the lowest reduction in powdery mildew disease severity on marigold among the tested treatments.

Taxon
marigold (Calendula officinalis)Calendula officinalise1
Treatment
CuOe3
Interactor
Erysiphe cichoracearumGolovinomyces cichoracearume1pathogen
Outcome
decreasing disease severitye3
Direction
lowest effecte3

Not reportedComparator

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

Calendula officinalis
Calendula officinalis · TaxonBetty Cai · CC BY-SA 4.0 · Wikimedia Commons ↗
Golovinomyces cichoracearum
Golovinomyces cichoracearum · InteractorJames Lindsey · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“to control powdery mildew disease caused by Erysiphe cichoracearum on marigold (Calendula officinalis)”

✓ located verbatim in the source · abstract, characters 218–320 · show in text ↑
e3

“In this respect, chitosan showed the best effect in decreasing disease severity followed by ZnO NPs. Meanwhile, CuO gave the lowest effect in this respect”

✓ located verbatim in the source · abstract, characters 440–594 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Lower powdery mildew severity on marigold was accompanied by an increase in numbers of inflorescences and inflorescence weight.

Taxon
marigold (Calendula officinalis)Calendula officinalise1
Interactor
powdery mildewe4pathogen
Outcome
numbers of inflorescence weighte4
Direction
increasee4

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

Calendula officinalis
Calendula officinalis · TaxonBetty Cai · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“to control powdery mildew disease caused by Erysiphe cichoracearum on marigold (Calendula officinalis)”

✓ located verbatim in the source · abstract, characters 218–320 · show in text ↑
e4

“The decrease in disease severity of powdery mildew was positively expressed by an increase in crop parameters, i.e. numbers of inflorescence weight, fresh and dry weights of plants, plant height, number of branches and increased chlorophyll ( a and b) and carotenoids”

✓ located verbatim in the source · abstract, characters 596–863 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Lower powdery mildew severity on marigold was accompanied by an increase in fresh and dry weights of plants.

Taxon
marigold (Calendula officinalis)Calendula officinalise1
Interactor
powdery mildewe4pathogen
Outcome
fresh and dry weights of plantse4
Direction
increasee4

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

Calendula officinalis
Calendula officinalis · TaxonBetty Cai · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“to control powdery mildew disease caused by Erysiphe cichoracearum on marigold (Calendula officinalis)”

✓ located verbatim in the source · abstract, characters 218–320 · show in text ↑
e4

“The decrease in disease severity of powdery mildew was positively expressed by an increase in crop parameters, i.e. numbers of inflorescence weight, fresh and dry weights of plants, plant height, number of branches and increased chlorophyll ( a and b) and carotenoids”

✓ located verbatim in the source · abstract, characters 596–863 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Lower powdery mildew severity on marigold was accompanied by an increase in plant height and number of branches.

Taxon
marigold (Calendula officinalis)Calendula officinalise1
Interactor
powdery mildewe4pathogen
Outcome
plant height, number of branchese4
Direction
increasee4

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

Calendula officinalis
Calendula officinalis · TaxonBetty Cai · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“to control powdery mildew disease caused by Erysiphe cichoracearum on marigold (Calendula officinalis)”

✓ located verbatim in the source · abstract, characters 218–320 · show in text ↑
e4

“The decrease in disease severity of powdery mildew was positively expressed by an increase in crop parameters, i.e. numbers of inflorescence weight, fresh and dry weights of plants, plant height, number of branches and increased chlorophyll ( a and b) and carotenoids”

✓ located verbatim in the source · abstract, characters 596–863 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Lower powdery mildew severity on marigold was accompanied by increased chlorophyll (a and b) and carotenoids.

Taxon
marigold (Calendula officinalis)Calendula officinalise1
Interactor
powdery mildewe4pathogen
Outcome
chlorophyll ( a and b) and carotenoidse4
Direction
increasede4

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

Calendula officinalis
Calendula officinalis · TaxonBetty Cai · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“to control powdery mildew disease caused by Erysiphe cichoracearum on marigold (Calendula officinalis)”

✓ located verbatim in the source · abstract, characters 218–320 · show in text ↑
e4

“The decrease in disease severity of powdery mildew was positively expressed by an increase in crop parameters, i.e. numbers of inflorescence weight, fresh and dry weights of plants, plant height, number of branches and increased chlorophyll ( a and b) and carotenoids”

✓ located verbatim in the source · abstract, characters 596–863 · show in text ↑