Abstract
Potato late blight is one of the devastating plant diseases. The pathogen is primarily seed borne and polycyclic in nature dispersing many secondary sporangiospores from foliar infected plants to healthy ones spreading rapidly within short span causing heavy yield losses. So, in the present study, two different experiments were conducted separately, where in the first one, seed dressing with different fungicides was carried out under pot conditions followed by second experiment in finding the effect of systemic foliar fungicidal sprays under field conditions against the incidence and intensity of late blight disease. Four different fungicides (one protectant and three systemic) viz., mancozeb 75 WP, dimethomorph 50WP, cymoxanil 8 + mancozeb 64 WP and metalaxyl 8 + mancozeb 64 WP, were evaluated as seed dressers against late blight (Phytophthora infestans) of potato cv. Kufri Jyoti in pot experiments during 2016 and 2017cropping seasons. The results obtained during both cropping seasons revealed that all the fungicidal seed dressers delayed the appearance of first symptoms of the disease. The disease incidence and intensity recorded indicated that all the fungicides significantly reduced the late blight at all the periods compared to control (water). The ‘A’(AUDPC) values were significantly reduced when tubers were treated with different fungicides. Tuber treatment with dimethomorph or metalaxyl + mancozeb showed minimum ‘A’ value of 125.91 compared to the maximum “A” value of 185.20 for undressed control during 2016 and similar trend of results was observed during 2017 cropping season. In the second experiment of systemic foliar fungicidal sprays, three systemic fungicides viz. dimethomorph 50 WP at 0.05% (C1), 0.10% (C2) and 0. 15%(C3) concentrations, metalaxyl 8+mancozeb 64 WP and Cymoxanil 8 + mancozeb 72 WP at 0.15% (C1), 0.20% (C2) & 0.25% (C3) concentrations sprayed at ten days interval after symptom development till dehaulming stage were evaluated against the disease incidence and intensity during 2016 & 2017 cropping seasons. The results obtained during 2016 cropping season revealed that, among the systemic/translaminar fungicidal foliar sprays, all the fungicides were equally superior to water-sprayed control in reducing the blight incidence from 74.04 to17.03 per cent. On an average, foliar spray with dimethomorph yielded the minimum blight intensity of 11.64 per cent followed by cymoxanil 8 + mancozeb 72 WP 13.02 per cent spray compared to 56.27 per cent obtained in water- sprayed check. Dimethomorph foliar sprays at C2 and C3 concentrations were found most effective recording the lowest blight intensities of 8.38 and 8.44% respectively and least “A” value followed by foliar spray with cymoxanil 8+mancozeb 72 WP (10.35-10.41%) compared to water sprayed check (56.27%) during 2016 and similar trend was observed during 2017 cropping season. It was also found that the foliar sprays with dimethomorph resulted in the highest tuber yield (206.14 q tubers per hectare) and large sized tubers followed by foliar sprays with metalaxyl 8+mancozeb 64 WP as compared to water-sprayed control plots (152.72 q/ ha)with small sized tubers.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
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 15
Claim · model-written summary
All fungicidal seed dressings delayed first late blight symptoms.
- Taxon
- potato
Solanum tuberosumt0e1 - Material
- Kufri Jyotie1
- Treatment
- fungicidal seed dresserse0
- Interactor
- Phytophthora infestans
Phytophthora infestanse1pathogen - Outcome
- appearance of first symptoms of the diseasee0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“all the fungicidal seed dressers delayed the appearance of first symptoms of the disease”
e1“late blight (Phytophthora infestans) of potato cv. Kufri Jyoti”
Claim · model-written summary
All seed dressing fungicides significantly reduced late blight incidence and intensity versus water.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- all the fungicidese0
- Outcome
- disease incidence and intensitye1
- Direction
- reducede0
- Qualifier
- at all the periodse0
- Comparator
- control (water)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all the fungicides significantly reduced the late blight at all the periods compared to control (water)”
e1“The disease incidence and intensity recorded”
t0“potato tubers”
Claim · model-written summary
Fungicidal tuber treatments significantly reduced AUDPC values.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- different fungicidese0
- Outcome
- ‘A’(AUDPC) valuese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“The ‘A’(AUDPC) values were significantly reduced when tubers were treated with different fungicides”
Claim · model-written summary
Dimethomorph tuber treatment had minimum AUDPC value of 125.91 versus 185.20 for undressed control in 2016.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- dimethomorphe0
- Outcome
- ‘A’ valuee0
- Direction
- minimume0
- Value
- 125.91e0
- Qualifier
- 2016e0
- Comparator
- undressed controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“Tuber treatment with dimethomorph or metalaxyl + mancozeb showed minimum ‘A’ value of 125.91 compared to the maximum “A” value of 185.20 for undressed control during 2016”
Claim · model-written summary
Metalaxyl plus mancozeb tuber treatment had minimum AUDPC value of 125.91 versus undressed control in 2016.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- metalaxyl + mancozebe0
- Outcome
- ‘A’ valuee0
- Direction
- minimume0
- Value
- 125.91e0
- Qualifier
- 2016e0
- Comparator
- undressed controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“Tuber treatment with dimethomorph or metalaxyl + mancozeb showed minimum ‘A’ value of 125.91 compared to the maximum “A” value of 185.20 for undressed control during 2016”
Claim · model-written summary
Foliar fungicides reduced late blight incidence from 74.04 to 17.03 per cent versus water control in 2016.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- all the fungicidese0
- Outcome
- blight incidencee0
- Direction
- reducinge0
- Value
- 74.04 to17.03 per cente0
- Comparator
- water-sprayed controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“all the fungicides were equally superior to water-sprayed control in reducing the blight incidence from 74.04 to17.03 per cent”
Claim · model-written summary
Dimethomorph foliar spray had minimum blight intensity of 11.64 per cent versus 56.27 per cent in water check.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- foliar spray with dimethomorphe0
- Outcome
- blight intensitye0
- Direction
- minimume0
- Value
- 11.64 per cente0
- Comparator
- water- sprayed checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“foliar spray with dimethomorph yielded the minimum blight intensity of 11.64 per cent followed by cymoxanil 8 + mancozeb 72 WP 13.02 per cent spray compared to 56.27 per cent obtained in water- sprayed check”
Claim · model-written summary
Cymoxanil plus mancozeb foliar spray gave blight intensity of 13.02 per cent versus water check.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- cymoxanil 8 + mancozeb 72 WPe0
- Outcome
- blight intensitye0
- Direction
- followed bye0
- Value
- 13.02 per cente0
- Comparator
- water- sprayed checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“foliar spray with dimethomorph yielded the minimum blight intensity of 11.64 per cent followed by cymoxanil 8 + mancozeb 72 WP 13.02 per cent spray compared to 56.27 per cent obtained in water- sprayed check”
Claim · model-written summary
Dimethomorph C2 spray gave lowest blight intensity, 8.38%, versus 56.27% in water check.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Dimethomorph foliar sprays at C2e0
- Outcome
- blight intensitiese0
- Direction
- loweste0
- Value
- 8.38e0
- Qualifier
- 2016e0
- Comparator
- water sprayed checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“Dimethomorph foliar sprays at C2 and C3 concentrations were found most effective recording the lowest blight intensities of 8.38 and 8.44% respectively and least “A” value followed by foliar spray with cymoxanil 8+mancozeb 72 WP (10.35-10.41%) compared to water sprayed check (56.27%) during 2016”
Claim · model-written summary
Dimethomorph C3 spray gave lowest blight intensity, 8.44%, versus water check.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Dimethomorph foliar sprays at C2 and C3 concentrationse0
- Outcome
- blight intensitiese0
- Direction
- loweste0
- Value
- 8.44%e0
- Comparator
- water sprayed checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“Dimethomorph foliar sprays at C2 and C3 concentrations were found most effective recording the lowest blight intensities of 8.38 and 8.44% respectively and least “A” value followed by foliar spray with cymoxanil 8+mancozeb 72 WP (10.35-10.41%) compared to water sprayed check (56.27%) during 2016”
Claim · model-written summary
Dimethomorph foliar sprays yielded the least AUDPC value.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Dimethomorph foliar sprays at C2 and C3 concentrationse0
- Outcome
- “A” valuee0
- Direction
- leaste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“Dimethomorph foliar sprays at C2 and C3 concentrations were found most effective recording the lowest blight intensities of 8.38 and 8.44% respectively and least “A” value”
Claim · model-written summary
Cymoxanil plus mancozeb foliar spray gave blight intensity of 10.35-10.41% versus water check.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- foliar spray with cymoxanil 8+mancozeb 72 WPe0
- Outcome
- blight intensitiese1
- Direction
- loweste1
- Value
- 10.35-10.41%e0
- Comparator
- water sprayed checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“foliar spray with cymoxanil 8+mancozeb 72 WP (10.35-10.41%) compared to water sprayed check (56.27%)”
e1“lowest blight intensities”
Claim · model-written summary
Dimethomorph foliar spray yielded 206.14 q tubers per hectare versus 152.72 q/ ha in water control.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- foliar sprays with dimethomorphe0
- Outcome
- tuber yielde0
- Direction
- higheste0
- Value
- 206.14 q tubers per hectaree0
- Comparator
- water-sprayed control plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“foliar sprays with dimethomorph resulted in the highest tuber yield (206.14 q tubers per hectare) and large sized tubers followed by foliar sprays with metalaxyl 8+mancozeb 64 WP as compared to water-sprayed control plots (152.72 q/ ha)”
Claim · model-written summary
Dimethomorph foliar spray produced large sized tubers versus small sized tubers in water control.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- foliar sprays with dimethomorphe0
- Outcome
- large sized tuberse0
- Comparator
- water-sprayed control plotse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“foliar sprays with dimethomorph resulted in the highest tuber yield (206.14 q tubers per hectare) and large sized tubers followed by foliar sprays with metalaxyl 8+mancozeb 64 WP as compared to water-sprayed control plots (152.72 q/ ha)with small sized tubers”
Claim · model-written summary
Metalaxyl plus mancozeb foliar spray ranked after dimethomorph for tuber yield and size.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- foliar sprays with metalaxyl 8+mancozeb 64 WPe0
- Outcome
- large sized tuberse0
- Direction
- followed bye0
- Comparator
- water-sprayed control plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato tubers”
e0“large sized tubers followed by foliar sprays with metalaxyl 8+mancozeb 64 WP as compared to water-sprayed control plots (152.72 q/ ha)with small sized tubers”
The same questions in other papers
cymoxanil · disease · Solanum tuberosum (potato)Positive and negative results
6 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
4 papers more in this group
See all 8 papers →mancozeb · disease · Solanum tuberosum (potato)Positive and negative results
23 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
22 papers more in this group
See all 26 papers →dimethomorph · yield · Solanum tuberosum (potato)Results agree
7 papers in the same direction as this paper
- positive
- positive
- positive
4 papers more in this group
See all 8 papers →dimethomorph · disease · Solanum tuberosum (potato)Results agree
8 papers in the same direction as this paper
- positive
- positive
- positive
5 papers more in this group
See all 9 papers →fungicide · Phytophthora infestans · Solanum tuberosum (potato)Positive and negative results
31 papers in the same direction as this paper · 8 in the opposite direction
- no effect
- negative
- no effect
36 papers more in this group
See all 40 papers →application · disease · Solanum tuberosum (potato)Positive and negative results
66 papers in the same direction as this paper · 9 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- negative
73 papers more in this group
See all 77 papers →fungicide · disease · Solanum tuberosum (potato)Positive and negative results
73 papers in the same direction as this paper · 5 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- no effect
76 papers more in this group
See all 80 papers →application · yield · Solanum tuberosum (potato)Positive and negative results
176 papers in the same direction as this paper · 14 in the opposite direction
- no effect
- no effect
- negative
187 papers more in this group
See all 191 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.