Abstract
Shaabo, A., N. Deeb, M. Mufleh, R. Zaydan, A. Haj Hasan, L. Adra, A. Askriyeh and N. Sakkour. 2022. Effect of Chemical and Biological Control Components in Protecting Potatoes from Infection with Early Blight Disease Caused by Alternaria solani and its Impact on Growth and Yield. Arab Journal of Plant Protection, 40(4): 325-333. https://doi.org/10.22268/AJPP-40.4.325333 This study was carried out at Alsonawbar Station of the Agricultural Scientific Research Center in Lattakia, Syria during the spring of 2021 to evaluate the effect of different treatments for the control of potato early blight disease, and their effect on plant growth and potato yield and quality. Six treatments were evaluated: two chemical pesticides: Ranman 20% SC (cyazofamid), Moximate 50% WP (cymoxanil + mancozeb), three biological pesticides Bacillus subtilis, Beauveria bassiana and Trichoderma harizianum, in addition to the control. Results showed that Ranman treatment was superior, as it led to reduction of 20.18 and 5.61 % in disease severity and infection rate, respectively, two weeks after treatment, with a decrease of 25.80 and 20.46 %, respectively, compared to the control. With the same treatment, the leaf area and leaf area index reached 8438.75 cm2 /plant and 3.45 m2 /m2 , respectively, with an increase of 4827.75 cm2 /plant, and 1.97 m2 /m2 over the control treatment. Results also showed the superiority of Bacillus subtilis treatment in terms of tubers number, tubers weight, yield, and the proportion of marketable yield which reached 8.16 tuber/plant, 93.47 g/tuber, 3126.94 kg/donum, 95.30% marketable yield, respectively, which represented a reduction rate of 20.09%, 30.99%, 42.31%, 9.72%, respectively, over the control treatment. In addition, results showed that the highest dry matter and starch content was obtained in response to the chemical pesticides treatments. Key words: Alternaria solani, potato, chemical control, biological control, production
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Claims 17
Claim · model-written summary
Ranman reduced disease severity by 20.18 two weeks after treatment.
- Taxon
- Potatoes
Solanum tuberosumt0 - Treatment
- Ranmane0
- Interactor
- Alternaria solani
Alternaria solanit0pathogen - Outcome
- disease severitye0
- Direction
- reductione0
- Value
- 20.18e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ranman treatment was superior, as it led to reduction of 20.18 and 5.61 % in disease severity and infection rate, respectively, two weeks after treatment”
t0“Potatoes from Infection with Early Blight Disease Caused by Alternaria solani”
Claim · model-written summary
Ranman reduced infection rate by 5.61% two weeks after treatment.
- Taxon
- PotatoesSolanum tuberosumt0
- Treatment
- Ranmane0
- Interactor
- Alternaria solaniAlternaria solanit0pathogen
- Outcome
- infection ratee0
- Direction
- reductione0
- Value
- 5.61 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ranman treatment was superior, as it led to reduction of 20.18 and 5.61 % in disease severity and infection rate, respectively, two weeks after treatment”
t0“Potatoes from Infection with Early Blight Disease Caused by Alternaria solani”
Claim · model-written summary
Ranman reduced disease severity 25.80% relative to control.
- Taxon
- PotatoesSolanum tuberosumt0
- Interactor
- Alternaria solaniAlternaria solanit0pathogen
- Direction
- decreasee0
- Value
- 25.80e0
- Comparator
- controle0
Not reportedTreatmentOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with a decrease of 25.80 and 20.46 %, respectively, compared to the control.”
t0“Potatoes from Infection with Early Blight Disease Caused by Alternaria solani”
Claim · model-written summary
Ranman reduced infection rate 20.46% relative to control.
- Taxon
- PotatoesSolanum tuberosumt0
- Interactor
- Alternaria solaniAlternaria solanit0pathogen
- Direction
- decreasee0
- Value
- 20.46 %e0
- Comparator
- controle0
Not reportedTreatmentOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with a decrease of 25.80 and 20.46 %, respectively, compared to the control.”
t0“Potatoes from Infection with Early Blight Disease Caused by Alternaria solani”
Claim · model-written summary
Under Ranman, leaf area reached 8438.75 cm2 /plant.
- Taxon
- PotatoesSolanum tuberosumt0
- Outcome
- leaf areae0
- Direction
- reachede0
- Value
- 8438.75 cm2 /plante0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the same treatment, the leaf area and leaf area index reached 8438.75 cm2 /plant and 3.45 m2 /m2 , respectively”
t0“Potatoes from Infection with Early Blight Disease Caused by Alternaria solani”
Claim · model-written summary
Under Ranman, leaf area index reached 3.45 m2 /m2.
- Taxon
- PotatoesSolanum tuberosumt0
- Outcome
- leaf area indexe0
- Direction
- reachede0
- Value
- 3.45 m2 /m2e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the same treatment, the leaf area and leaf area index reached 8438.75 cm2 /plant and 3.45 m2 /m2 , respectively”
t0“Potatoes from Infection with Early Blight Disease Caused by Alternaria solani”
Claim · model-written summary
Ranman raised leaf area by 4827.75 cm2 /plant over control.
- Taxon
- PotatoesSolanum tuberosumt0
- Direction
- increasee0
- Value
- 4827.75 cm2 /plante0
- Comparator
- control treatmente0
Not reportedTreatmentOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with an increase of 4827.75 cm2 /plant, and 1.97 m2 /m2 over the control treatment”
t0“Potatoes from Infection with Early Blight Disease Caused by Alternaria solani”
Claim · model-written summary
Ranman raised leaf area index by 1.97 m2 /m2 over control.
- Taxon
- PotatoesSolanum tuberosumt0
- Direction
- increasee0
- Value
- 1.97 m2 /m2e0
- Comparator
- control treatmente0
Not reportedTreatmentOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with an increase of 4827.75 cm2 /plant, and 1.97 m2 /m2 over the control treatment”
t0“Potatoes from Infection with Early Blight Disease Caused by Alternaria solani”
Claim · model-written summary
Bacillus subtilis yielded 8.16 tubers per plant.
- Taxon
- PotatoesSolanum tuberosumt0
- Treatment
- Bacillus subtilis treatmente0
- Interactor
- Bacillus subtilis
Bacillus subtilise0biocontrol_agent - Outcome
- tubers numbere0
- Direction
- reachede0
- Value
- 8.16 tuber/plante0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacillus subtilis treatment in terms of tubers number, tubers weight, yield, and the proportion of marketable yield which reached 8.16 tuber/plant, 93.47 g/tuber, 3126.94 kg/donum, 95.30% marketable yield, respectively”
t0“Potatoes from Infection with Early Blight Disease Caused by Alternaria solani”
Claim · model-written summary
Bacillus subtilis yielded 93.47 g per tuber.
- Taxon
- PotatoesSolanum tuberosumt0
- Treatment
- Bacillus subtilis treatmente0
- Interactor
- Bacillus subtilisBacillus subtilise0biocontrol_agent
- Outcome
- tubers weighte0
- Direction
- reachede0
- Value
- 93.47 g/tubere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacillus subtilis treatment in terms of tubers number, tubers weight, yield, and the proportion of marketable yield which reached 8.16 tuber/plant, 93.47 g/tuber, 3126.94 kg/donum, 95.30% marketable yield, respectively”
t0“Potatoes from Infection with Early Blight Disease Caused by Alternaria solani”
Claim · model-written summary
Bacillus subtilis treatment produced 3126.94 kg/donum potato yield.
- Taxon
- PotatoesSolanum tuberosumt0
- Treatment
- Bacillus subtilis treatmente0
- Interactor
- Bacillus subtilisBacillus subtilise0biocontrol_agent
- Outcome
- yielde0
- Direction
- reachede0
- Value
- 3126.94 kg/donume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacillus subtilis treatment in terms of tubers number, tubers weight, yield, and the proportion of marketable yield which reached 8.16 tuber/plant, 93.47 g/tuber, 3126.94 kg/donum, 95.30% marketable yield, respectively”
t0“Potatoes from Infection with Early Blight Disease Caused by Alternaria solani”
Claim · model-written summary
Bacillus subtilis treatment produced 95.30% marketable yield.
- Taxon
- PotatoesSolanum tuberosumt0
- Treatment
- Bacillus subtilis treatmente0
- Interactor
- Bacillus subtilisBacillus subtilise0biocontrol_agent
- Outcome
- proportion of marketable yielde0
- Direction
- reachede0
- Value
- 95.30%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacillus subtilis treatment in terms of tubers number, tubers weight, yield, and the proportion of marketable yield which reached 8.16 tuber/plant, 93.47 g/tuber, 3126.94 kg/donum, 95.30% marketable yield, respectively”
t0“Potatoes from Infection with Early Blight Disease Caused by Alternaria solani”
Claim · model-written summary
Relative to control, the Bacillus subtilis treatment had a reported 20.09% reduction in tuber number.
- Taxon
- PotatoesSolanum tuberosumt0
- Direction
- reductione0
- Value
- 20.09%e0
- Comparator
- control treatmente0
Not reportedTreatmentOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which represented a reduction rate of 20.09%, 30.99%, 42.31%, 9.72%, respectively, over the control treatment”
t0“Potatoes from Infection with Early Blight Disease Caused by Alternaria solani”
Claim · model-written summary
Relative to control, the Bacillus subtilis treatment had a reported 30.99% reduction in tuber weight.
- Taxon
- PotatoesSolanum tuberosumt0
- Direction
- reductione0
- Value
- 30.99%e0
- Comparator
- control treatmente0
Not reportedTreatmentOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which represented a reduction rate of 20.09%, 30.99%, 42.31%, 9.72%, respectively, over the control treatment”
t0“Potatoes from Infection with Early Blight Disease Caused by Alternaria solani”
Claim · model-written summary
Relative to control, the Bacillus subtilis treatment had a reported 42.31% reduction in yield.
- Taxon
- PotatoesSolanum tuberosumt0
- Direction
- reductione0
- Value
- 42.31%e0
- Comparator
- control treatmente0
Not reportedTreatmentOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which represented a reduction rate of 20.09%, 30.99%, 42.31%, 9.72%, respectively, over the control treatment”
t0“Potatoes from Infection with Early Blight Disease Caused by Alternaria solani”
Claim · model-written summary
Relative to control, the Bacillus subtilis treatment had a reported 9.72% reduction in marketable yield proportion.
- Taxon
- PotatoesSolanum tuberosumt0
- Direction
- reductione0
- Value
- 9.72%e0
- Comparator
- control treatmente0
Not reportedTreatmentOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which represented a reduction rate of 20.09%, 30.99%, 42.31%, 9.72%, respectively, over the control treatment”
t0“Potatoes from Infection with Early Blight Disease Caused by Alternaria solani”
Claim · model-written summary
Chemical pesticide treatments gave the highest dry matter and starch content.
- Taxon
- PotatoesSolanum tuberosumt0
- Treatment
- chemical pesticides treatmentse0
- Outcome
- dry matter and starch contente0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest dry matter and starch content was obtained in response to the chemical pesticides treatments”
t0“Potatoes from Infection with Early Blight Disease Caused by Alternaria solani”
The same questions in other papers
Bacillus subtilis · quality: postharvest · Solanum tuberosum (potato)Results agree
1 paper in the same direction as this paper
- positive
Bacillus subtilis · yield · Solanum tuberosum (potato)Results agree
9 papers in the same direction as this paper
- positive
- positive
- positive
6 papers more in this group
See all 10 papers →insecticide · quality: sugar starch · Solanum tuberosum (potato)Positive and negative results
1 paper in the same direction as this paper · 2 reporting no difference from an alternative
- no effect
- no effect
- positive
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.