Abstract
Potato varieties grown in Nepal have low levels of general resistance to late blight. Mostly the commercial potato farmers rely on fungicide applications for control of Phytophthora infestans, the causal agent of late blight. Field study was conducted in winter 2017 at research field of Institute of Agriculture and Animal Science, Lamjung Campus, Sundarbazar, Lamjung, Nepal to evaluate the efficacy of commercially available fungicides against late blight of potato. Experiment was laid in randomized complete block design with five replications. Treatments consisted of Dimethomorph 50% WDG@1.5g/L, Cholothalonil 75% WP @ 2g/L, Mancozeb 75% WP@ 2.5g/L and Trichoderma @ 2ml/L as recommended for field use and a variant with no application of fungicide (only tap water) was used as a control. Spore suspension of respective plant pathogen was inoculated twice @ 500 ml per plot (4m2). Treatments were applied after the appearance of first blight symptom and level of disease development was followed. The best control was obtained with application of Dimethomorph with significant reduction in AUDPC (139 dsu) while the control treatment gave the highest AUDPC of 223.2 dsu. Same pattern was seen for tuber production where application of Dimethomorph gave 170.8 g tuber/plant, which was significantly higher than that of control treatment (73.7 g). Chlorothalonil and Mancozeb gave the intermediate level of disease control still significantly superior than control treatment. However; the application of Trichoderma showed the AUDPC of 228 dsu with 89.7 g of tuber yield per plant which was statistically indifferent with the control treatment. Thus, this study recommends Dimethomorph 50% WDG@1.5g/L in controlling the prevailing strain of P. infestans and multi-location trial is necessary in future for general validation.
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Claims 7
Claim · model-written summary
Dimethomorph significantly reduced late blight AUDPC to 139 dsu versus 223.2 dsu in control.
- Taxon
- POTATO
Solanum tuberosumt0 - Treatment
- Dimethomorphe0
- Outcome
- AUDPCe0
- Direction
- reductione0
- Value
- 139 dsue0
- Qualifier
- 223.2 dsue0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of Dimethomorph with significant reduction in AUDPC (139 dsu) while the control treatment gave the highest AUDPC of 223.2 dsu”
t0“POTATO”
Claim · model-written summary
Dimethomorph increased tuber production to 170.8 g tuber/plant versus 73.7 g in control.
- Taxon
- POTATOSolanum tuberosumt0
- Treatment
- Dimethomorphe0
- Outcome
- tuber/plante0
- Direction
- highere0
- Value
- 170.8 g tuber/plante0
- Qualifier
- 73.7 ge0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of Dimethomorph gave 170.8 g tuber/plant, which was significantly higher than that of control treatment (73.7 g)”
t0“POTATO”
Claim · model-written summary
Chlorothalonil gave intermediate disease control superior to control.
- Taxon
- POTATOSolanum tuberosumt0
- Treatment
- Chlorothalonile0
- Outcome
- disease controle0
- Direction
- superiore0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorothalonil and Mancozeb gave the intermediate level of disease control still significantly superior than control treatment”
t0“POTATO”
Claim · model-written summary
Mancozeb gave intermediate disease control superior to control.
- Taxon
- POTATOSolanum tuberosumt0
- Treatment
- Mancozebe0
- Outcome
- disease controle0
- Direction
- superiore0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorothalonil and Mancozeb gave the intermediate level of disease control still significantly superior than control treatment”
t0“POTATO”
Claim · model-written summary
Trichoderma treatment had AUDPC of 228 dsu, statistically indistinguishable from control.
- Taxon
- POTATOSolanum tuberosumt0
- Treatment
- Trichodermae0
- Interactor
- Trichoderma
Trichodermae0biocontrol_agent - Outcome
- AUDPCe0
- Value
- 228 dsue0
- Comparator
- control treatmente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of Trichoderma showed the AUDPC of 228 dsu with 89.7 g of tuber yield per plant which was statistically indifferent with the control treatment”
t0“POTATO”
Claim · model-written summary
Trichoderma treatment yielded 89.7 g tubers per plant, statistically indistinguishable from control.
- Taxon
- POTATOSolanum tuberosumt0
- Treatment
- Trichodermae0
- Interactor
- TrichodermaTrichodermae0biocontrol_agent
- Outcome
- tuber yield per plante0
- Value
- 89.7 ge0
- Comparator
- control treatmente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of Trichoderma showed the AUDPC of 228 dsu with 89.7 g of tuber yield per plant which was statistically indifferent with the control treatment”
t0“POTATO”
Claim · model-written summary
The authors recommend Dimethomorph 50% WDG@1.5g/L for prevailing P. infestans control.
- Taxon
- POTATOSolanum tuberosumt0
- Treatment
- Dimethomorph 50% WDG@1.5g/Le0
- Interactor
- P. infestans
Phytophthora infestanse0pathogen - Outcome
- controlling the prevailing strain of P. infestanse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this study recommends Dimethomorph 50% WDG@1.5g/L in controlling the prevailing strain of P. infestans”
t0“POTATO”
The same questions in other papers
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See all 9 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.