Abstract
Late blight (LB) caused by Phytophthora infestans (Mont.) de Bary, is one of the most destructive diseases of potato and tomato worldwide. Globally, application of fungicide is an effective approach for potato LB management. Isolates of P. infestans were collected from different fields in Egypt and characterized using microsatellite markers and mitcondrial DNA. Twelve fungicides were applied in vitro to test their control P. infestans isolates. Nine potato cultivars were evaluated under artificial inoculation. Field trials were conducted to evaluate the efficacy applied fungicides to LB management and potato productivity at El-Behera governorate in two seasons. Our results revealed that collected isolates of P. infestans were A1 mating type, 23_A1 clonal lineage and Ia/IR1 mitcondrial DNA. Furthermore, potato cultivar Burren was highly resistant and recorded the lowest area under disease progress curve (AUDPC). On the other hand, cultivars Alaska, Spunta, Lady Rosita and Mondial were highly susceptible and revealed the highest AUDPC values. In vitro, all fungicide applications inhibited linear growth of P. infestans isolates (EG-Pi1 and EG-Pi2). For field trial, Equation-Pro, and Consonto were the best effective fungicides in respect of LB management where lowest disease severity and AUDPC were recorded in both prophylactically and curatively during two seasons. Moreover, potato tuber production significantly increased with Equation – Pro application. The results of this study provided crucial information for potato breeding programs and crop improvement as well as successful management strategy for late blight challenge.
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Claims 10
Claim · model-written summary
Collected P. infestans isolates were A1 mating type, 23_A1 clonal lineage, and Ia/IR1 mitochondrial DNA.
- Taxon
- potato
Solanum tuberosumt0 - Interactor
- P. infestans
Phytophthora infestanse0pathogen - Outcome
- A1 mating type, 23_A1 clonal lineage and Ia/IR1 mitcondrial DNAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“collected isolates of P. infestans were A1 mating type, 23_A1 clonal lineage and Ia/IR1 mitcondrial DNA”
t0“potato”
Claim · model-written summary
Burren was highly resistant to late blight and had the lowest AUDPC.
- Taxon
- potatoSolanum tuberosume0
- Material
- Burrene0
- Outcome
- area under disease progress curve (AUDPC)e0
- Direction
- loweste0
Not reportedInteractor
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potato cultivar Burren was highly resistant and recorded the lowest area under disease progress curve (AUDPC)”
Claim · model-written summary
Alaska was highly susceptible and among cultivars with the highest AUDPC.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Alaskae0
- Outcome
- AUDPC valuese0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cultivars Alaska, Spunta, Lady Rosita and Mondial were highly susceptible and revealed the highest AUDPC values”
t0“potato”
Claim · model-written summary
Spunta was highly susceptible and among cultivars with the highest AUDPC.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Spuntae0
- Outcome
- AUDPC valuese0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cultivars Alaska, Spunta, Lady Rosita and Mondial were highly susceptible and revealed the highest AUDPC values”
t0“potato”
Claim · model-written summary
Lady Rosita was highly susceptible and among cultivars with the highest AUDPC.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Lady Rositae0
- Outcome
- AUDPC valuese0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cultivars Alaska, Spunta, Lady Rosita and Mondial were highly susceptible and revealed the highest AUDPC values”
t0“potato”
Claim · model-written summary
Mondial was highly susceptible and among cultivars with the highest AUDPC.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Mondiale0
- Outcome
- AUDPC valuese0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cultivars Alaska, Spunta, Lady Rosita and Mondial were highly susceptible and revealed the highest AUDPC values”
t0“potato”
Claim · model-written summary
All tested fungicides inhibited linear growth of P. infestans isolates EG-Pi1 and EG-Pi2 in vitro.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- all fungicide applicationse0
- Interactor
- P. infestansPhytophthora infestanse0pathogen
- Outcome
- linear growth of P. infestans isolatese0
- Direction
- inhibitede0
- Setting
- In vitroe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In vitro, all fungicide applications inhibited linear growth of P. infestans isolates (EG-Pi1 and EG-Pi2)”
t0“potato”
Claim · model-written summary
Equation-Pro gave among the lowest late blight disease severity and AUDPC under prophylactic and curative field use.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Equation-Proe0
- Outcome
- disease severity and AUDPCe0
- Direction
- loweste0
- Qualifier
- both prophylactically and curatively during two seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Equation-Pro, and Consonto were the best effective fungicides in respect of LB management where lowest disease severity and AUDPC were recorded in both prophylactically and curatively during two seasons”
t0“potato”
Claim · model-written summary
Consonto gave among the lowest late blight disease severity and AUDPC under prophylactic and curative field use.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Consontoe0
- Outcome
- disease severity and AUDPCe0
- Direction
- loweste0
- Qualifier
- both prophylactically and curatively during two seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Equation-Pro, and Consonto were the best effective fungicides in respect of LB management where lowest disease severity and AUDPC were recorded in both prophylactically and curatively during two seasons”
t0“potato”
Claim · model-written summary
Equation – Pro significantly increased potato tuber production.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- Equation – Pro applicatione0
- Outcome
- tuber productione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potato tuber production significantly increased with Equation – Pro application”
The same questions in other 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
- positive
- no effect
- negative
36 papers more in this group
See all 40 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.