Abstract
Abstract. Pandawani NP, Listihani L, Widnyana IK, Ariati PEP, Selangga DGW. 2022. High impact of Clerodendrum paniculatum leaf extract to suppress zucchini yellow mosaic virus infection in zucchini plants. Biodiversitas 23: 2914-2919. Zucchini yellow mosaic virus (ZYMV) is an important virus in zucchini plants (Cucurbita pepo L.). ZYMV infection is prevalent in C. pepo in Bali and is extremely difficult to eradicate. This study aimed to determine the efficacy of pagoda leaf extract (Clerodendrum paniculatum L.) in reducing yield loss in C. pepo. A factorial randomized block design with two variables was employed in this study. The application time of the C. paniculatum extract was the first variable, and concentration was the second. Plant extract was applied during seed immersion, one day before and after inoculation, and on the same day of virus inoculation. The concentrations of C. paniculatum extract employed were 10%, 30%, and 50%. The crude extract was sprayed onto the C. pepo leaves. Plants treated with extract one day after virus inoculation at 10%, 30%, and 50% concentrations exhibited yellowing, yellowing with cupping, mosaic, mosaic with cupping, and stunting. While application of extract one day before virus inoculation at 30% and 50% concentrations resulted in yellowing and yellowing with cupping signs. Plants infected with ZYMV first showed flowering at 37 DAP, whereas plants treated with C. paniculatum leaf extract one day before virus inoculation started flowering at 32 DAP. Application of C. paniculatum leaf extract one day before ZYMV inoculation on C. pepo effectively suppressed 40% yield loss. The findings of present investigation revealed information about the potential of C. paniculatum leaf extract as a plant virus control agent through the mechanism of induction in C. pepo.
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Claims 6
Claim · model-written summary
Zucchini treated with extract one day after virus inoculation at 10%, 30%, and 50% showed several symptoms including stunting.
- Taxon
- zucchini plants
Cucurbita pepo subsp. pepot0 - Treatment
- extract one day after virus inoculation at 10%, 30%, and 50% concentrationse0
- Interactor
- viruse0pathogen
- Outcome
- yellowing, yellowing with cupping, mosaic, mosaic with cupping, and stuntinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“zucchini plants”
e0“Plants treated with extract one day after virus inoculation at 10%, 30%, and 50% concentrations exhibited yellowing, yellowing with cupping, mosaic, mosaic with cupping, and stunting”
Claim · model-written summary
Zucchini treated one day before inoculation at 30% and 50% showed yellowing and cupping symptoms.
- Taxon
- zucchini plantsCucurbita pepo subsp. pepot0
- Treatment
- extract one day before virus inoculation at 30% and 50% concentrationse0
- Interactor
- viruse0pathogen
- Outcome
- yellowing and yellowing with cupping signse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“zucchini plants”
e0“application of extract one day before virus inoculation at 30% and 50% concentrations resulted in yellowing and yellowing with cupping signs”
Claim · model-written summary
Virus-infected zucchini first flowered at 37 DAP.
- Taxon
- zucchini plantsCucurbita pepo subsp. pepot0
- Interactor
- ZYMV
Zucchini yellow mosaic viruse0pathogen - Outcome
- floweringe0
- Value
- 37 DAPe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“zucchini plants”
e0“Plants infected with ZYMV first showed flowering at 37 DAP”
Claim · model-written summary
Zucchini treated with C. paniculatum leaf extract one day before virus inoculation flowered at 32 DAP.
- Taxon
- zucchini plantsCucurbita pepo subsp. pepot0
- Treatment
- C. paniculatum leaf extract one day before virus inoculatione0
- Interactor
- ZYMVZucchini yellow mosaic viruse0pathogen
- Outcome
- floweringe0
- Direction
- startede0
- Value
- 32 DAPe0
- Comparator
- Plants infected with ZYMVe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“zucchini plants”
e0“Plants infected with ZYMV first showed flowering at 37 DAP, whereas plants treated with C. paniculatum leaf extract one day before virus inoculation started flowering at 32 DAP”
Claim · model-written summary
Applying C. paniculatum extract before ZYMV inoculation suppressed 40% yield loss in zucchini.
- Taxon
- C. pepo
Cucurbita pepoe0 - Treatment
- C. paniculatum leaf extract one day before ZYMV inoculatione0
- Interactor
- ZYMVZucchini yellow mosaic viruse0pathogen
- Outcome
- yield losse0
- Direction
- suppressede0
- Value
- 40%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“zucchini plants”
e0“Application of C. paniculatum leaf extract one day before ZYMV inoculation on C. pepo effectively suppressed 40% yield loss”
Claim · model-written summary
The authors propose induction in zucchini as the mechanism of the extract’s virus control potential.
- Taxon
- C. pepoCucurbita pepoe0
- Treatment
- C. paniculatum leaf extracte0
- Interactor
- viruse0pathogen
- Outcome
- plant virus controle0
- Qualifier
- mechanism of inductione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“zucchini plants”
e0“the potential of C. paniculatum leaf extract as a plant virus control agent through the mechanism of induction in C. pepo”
The same questions in other papers
Cucurbita pepo subsp. pepo · Zucchini yellow mosaic virus · Cucurbita pepoPositive and negative results
4 in the opposite direction
- negative
- negative
- no effect
1 paper more in this group
See all 5 papers →inoculation · Zucchini yellow mosaic virus · Cucurbita pepoPositive and negative results
1 in the opposite direction
- negative
botanical · Zucchini yellow mosaic virus · Cucurbita pepoResults agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 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.