Abstract
This investigation was carried out during 1996 and 1997 maize growing seasons at Gemmeiza Agricultural Research Station to evaluate the efficacy of some biocontrol agents, used as seed treatments, in controlling downy mildew disease of maize caused by P.sorghi under Egyptian condition. Field trials results have demonstrated that, downy mildew infection percentages were differed with the different seed treatments . Seed coating with the biocontrol agents was more effective than seed soaking with those agents during the two successive seasons. Bacillus subtilis used as seed coating was the most effective in reducing the disease infection percentage compared with the control. It exhibited 86.97 and 82.39% efficacy during 1996 and 1997 seasons, respectively. On the other hand, Trichoderma harzianum was the least one in this respect, where it gave only 11.05 and 3.78% efficacy in 1996 and 1997, respectively. No definite trend of infection due to seed soaking was found except with. Pseudomonas fleuroscence isolate No. (2) used as seed soaking which was effective with non-significant differences in controlling the disease comparing with the rest of the tested biocontrol agents. This treatment reduced the percentage of disease incidence from 56.8% and 53.20% to 47.07% and 40.36% during 1996 and 1997, respectively. There was no significant difference between treatments with Bacillus subtilis as seed coating and the recommended fungicide (Apron), in this respect.
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Claims 7
Claim · model-written summary
Seed coating with biocontrol agents was more effective than seed soaking against maize downy mildew in both seasons.
- Treatment
- Seed coating with the biocontrol agentse2
- Interactor
- P.sorghie1pathogen
- Outcome
- downy mildew infection percentagese0
- Direction
- more effectivee2
- Comparator
- seed soakinge2
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“to evaluate the efficacy of some biocontrol agents, used as seed treatments, in controlling downy mildew disease of maize caused by P.sorghi under Egyptian condition”
e0“downy mildew infection percentages were differed with the different seed treatments”
e2“Seed coating with the biocontrol agents was more effective than seed soaking with those agents during the two successive seasons”
Claim · model-written summary
Bacillus subtilis as seed coating was the most effective treatment for reducing maize downy mildew infection compared with the control, with 86.97% and 82.39% efficacy in 1996 and 1997.
- Treatment
- Bacillus subtilis used as seed coatinge3
- Interactor
- P.sorghie1pathogen
- Second interactor
- Bacillus subtilis
Bacillus subtilise3biocontrol_agent - Outcome
- disease infection percentagee3
- Direction
- the most effectivee3
- Value
- 86.97 and 82.39%e4
- Comparator
- the controle3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“to evaluate the efficacy of some biocontrol agents, used as seed treatments, in controlling downy mildew disease of maize caused by P.sorghi under Egyptian condition”
e3“Bacillus subtilis used as seed coating was the most effective in reducing the disease infection percentage compared with the control”
e4“It exhibited 86.97 and 82.39% efficacy during 1996 and 1997 seasons, respectively”
Claim · model-written summary
Trichoderma harzianum was the least effective agent against maize downy mildew, with 11.05% and 3.78% efficacy in 1996 and 1997.
- Treatment
- Trichoderma harzianume5
- Interactor
- P.sorghie1pathogen
- Second interactor
- Trichoderma harzianum
Trichoderma harzianume5biocontrol_agent - Outcome
- efficacye5
- Direction
- least onee5
- Value
- 11.05 and 3.78%e5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“to evaluate the efficacy of some biocontrol agents, used as seed treatments, in controlling downy mildew disease of maize caused by P.sorghi under Egyptian condition”
e5“Trichoderma harzianum was the least one in this respect, where it gave only 11.05 and 3.78% efficacy in 1996 and 1997, respectively”
Claim · model-written summary
Pseudomonas fluorescens isolate No. (2) as seed soaking was effective, with non-significant differences compared with the other tested biocontrol agents.
- Treatment
- Pseudomonas fleuroscence isolate No. (2) used as seed soakinge7
- Interactor
- P.sorghie1pathogen
- Second interactor
- Pseudomonas fleuroscencee7biocontrol_agent
- Outcome
- controlling the diseasee7
- Direction
- effectivee7
- Comparator
- the rest of the tested biocontrol agentse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“to evaluate the efficacy of some biocontrol agents, used as seed treatments, in controlling downy mildew disease of maize caused by P.sorghi under Egyptian condition”
e7“Pseudomonas fleuroscence isolate No. (2) used as seed soaking which was effective with non-significant differences in controlling the disease comparing with the rest of the tested biocontrol agents”
Claim · model-written summary
Pseudomonas fluorescens isolate No. (2) as seed soaking reduced maize downy mildew incidence to 47.07% and 40.36% in 1996 and 1997.
- Treatment
- Pseudomonas fleuroscence isolate No. (2) used as seed soakinge7
- Interactor
- P.sorghie1pathogen
- Second interactor
- Pseudomonas fleuroscencee7biocontrol_agent
- Outcome
- disease incidencee0
- Direction
- reducede0
- Value
- 47.07% and 40.36%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“to evaluate the efficacy of some biocontrol agents, used as seed treatments, in controlling downy mildew disease of maize caused by P.sorghi under Egyptian condition”
e7“Pseudomonas fleuroscence isolate No. (2) used as seed soaking which was effective with non-significant differences in controlling the disease comparing with the rest of the tested biocontrol agents”
e0“This treatment reduced the percentage of disease incidence from 56.8% and 53.20% to 47.07% and 40.36% during 1996 and 1997, respectively”
Claim · model-written summary
Seed soaking showed no definite trend of infection on maize downy mildew.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“to evaluate the efficacy of some biocontrol agents, used as seed treatments, in controlling downy mildew disease of maize caused by P.sorghi under Egyptian condition”
e6“No definite trend of infection due to seed soaking was found except with”
Claim · model-written summary
Bacillus subtilis as seed coating did not differ significantly from the recommended fungicide Apron in controlling maize downy mildew.
- Treatment
- Bacillus subtilis as seed coatinge6
- Interactor
- P.sorghie1pathogen
- Second interactor
- Bacillus subtilisBacillus subtilise6biocontrol_agent
- Outcome
- difference between treatmentse6
- Direction
- no significant differencee6
- Comparator
- the recommended fungicide (Apron)e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“to evaluate the efficacy of some biocontrol agents, used as seed treatments, in controlling downy mildew disease of maize caused by P.sorghi under Egyptian condition”
e6“There was no significant difference between treatments with Bacillus subtilis as seed coating and the recommended fungicide (Apron), in this respect”
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See all 18 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.