Abstract
Potato (Solanum tuberosum L.) is an important source of livelihood for smallholder farmers of north-western Ethiopia. However, its productivity is markedly low due to late blight disease caused by Phytophthora infestans. The objective of this study was to evaluate the integrated use of potato varieties and fungicides for the management of late blight disease. Field experiment was conducted in Lay-Armachiho district during the main potato cropping season of 2018. The experiment consisted of twelve treatments as factorial combinations of two synthetic fungicides (Ridomil and Mancozeb) and untreated check with four potato varieties (three improved varieties, namely, Jalene, Gudene, Belete, and Local variety) was laid out in RCBD design with three replications. Disease incidence, severity, AUDPC, yield, and yield components were analyzed using SAS software (version 9.1) at <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" id="M1"> <a:mi>P</a:mi> <a:mo><</a:mo> <a:mn>0.05</a:mn> </a:math> to separate treatment means. Fungicide sprayed treatments significantly reduced late blight epidemics and increased potato tuber yield on the Belete variety. The lowest disease severity (38.50%) and AUDPC values (761.02% unit-days) were recorded on Belete variety when sprayed with Ridomil fungicide. Late blight disease severity, incidence, AUDPC, and disease progress rate were reduced more in Belete variety than in the other three varieties. The highest disease severity (91.40%) and lowest yield (10.63 ton·ha−1) were recorded from the local control plot with a clear significance difference as compared to other treated plots. This study revealed that the application of Ridomil fungicide with the combination of Belete variety was effective in controlling late blight potato disease with the highest cost-benefit advantage.
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Claims 8
Claim · model-written summary
Fungicide sprays reduced late blight epidemics on Belete.
- Taxon
- potato
Solanum tuberosume0 - Material
- Beletee0
- Treatment
- Fungicide sprayed treatmentse0
- Interactor
- Phytophthora infestans
Phytophthora infestanst0pathogen - Outcome
- late blight epidemicse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fungicide sprayed treatments significantly reduced late blight epidemics and increased potato tuber yield on the Belete variety”
t0“Potato (Phytophthora infestans”
Claim · model-written summary
Fungicide sprays increased Belete potato tuber yield.
- Taxon
- potatoSolanum tuberosume0
- Material
- Beletee0
- Treatment
- Fungicide sprayed treatmentse0
- Outcome
- potato tuber yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fungicide sprayed treatments significantly reduced late blight epidemics and increased potato tuber yield on the Belete variety”
Claim · model-written summary
Ridomil-sprayed Belete had the lowest late blight severity at 38.50%.
- Taxon
- PotatoSolanum tuberosumt0
- Material
- Beletee0
- Treatment
- Ridomil fungicidee0
- Interactor
- Phytophthora infestansPhytophthora infestanst0pathogen
- Outcome
- lowest disease severitye0
- Direction
- loweste0
- Value
- 38.50%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lowest disease severity (38.50%) and AUDPC values (761.02% unit-days) were recorded on Belete variety when sprayed with Ridomil fungicide”
t0“Potato (Phytophthora infestans”
Claim · model-written summary
Ridomil-sprayed Belete had the lowest AUDPC at 761.02% unit-days.
- Taxon
- PotatoSolanum tuberosumt0
- Material
- Beletee0
- Treatment
- Ridomil fungicidee0
- Interactor
- Phytophthora infestansPhytophthora infestanst0pathogen
- Outcome
- AUDPC valuese0
- Direction
- loweste0
- Value
- 761.02% unit-dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lowest disease severity (38.50%) and AUDPC values (761.02% unit-days) were recorded on Belete variety when sprayed with Ridomil fungicide”
t0“Potato (Phytophthora infestans”
Claim · model-written summary
Belete had lower late blight severity, incidence, AUDPC, and disease progress rate than the other varieties.
- Taxon
- PotatoSolanum tuberosumt0
- Material
- Beletee0
- Interactor
- Phytophthora infestansPhytophthora infestanst0pathogen
- Outcome
- Late blight disease severity, incidence, AUDPC, and disease progress ratee0
- Direction
- reduced moree0
- Comparator
- the other three varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Late blight disease severity, incidence, AUDPC, and disease progress rate were reduced more in Belete variety than in the other three varieties”
t0“Potato (Phytophthora infestans”
Claim · model-written summary
The local control plot had the highest disease severity at 91.40%.
- Taxon
- PotatoSolanum tuberosumt0
- Material
- locale0
- Interactor
- Phytophthora infestansPhytophthora infestanst0pathogen
- Outcome
- disease severitye0
- Direction
- higheste0
- Value
- 91.40%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest disease severity (91.40%) and lowest yield (10.63 ton·ha−1) were recorded from the local control plot”
t0“Potato (Phytophthora infestans”
Claim · model-written summary
The local control plot had the lowest yield at 10.63 ton·ha−1.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest disease severity (91.40%) and lowest yield (10.63 ton·ha−1) were recorded from the local control plot”
t0“Late Blight Potato (Phytophthora infestans”
Claim · model-written summary
The authors concluded that Ridomil plus Belete controlled late blight with the highest cost-benefit advantage.
- Taxon
- potatoSolanum tuberosume0
- Material
- Beletee0
- Treatment
- Ridomil fungicidee0
- Interactor
- Phytophthora infestansPhytophthora infestanst0pathogen
- Outcome
- controlling late blight potato disease with the highest cost-benefit advantagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of Ridomil fungicide with the combination of Belete variety was effective in controlling late blight potato disease with the highest cost-benefit advantage”
t0“Potato (Phytophthora infestans”
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