Abstract
In this study Sclerotinia sclerotiorum (Lib.) de Bary on dry bean (Phaseolus vulgaris L.) and how to be controlling the disease in Egypt. Novel antifungal substances such as biocontrol agents and commercial biocides were used instead of fungicides which have a dangerous effect on human health or ecology. Twelve isolates of S. sclerotiorum were selected from 315 isolatesfrom the diseased bean grew in many governorates in Egypt.These isolates were identified and coded while it was used in pathogenicitytest and other experiments. In the pathogenicity isolate coding (SMZ11) was very aggressive than the other isolates. Eleven Isolates from rhizosphere bean i.e. (eight Trichoderma spp, two of Bacillus subtilis, and one of Pseudomonas fluorescens ) were isolated from healthy bean rhizosphere. These isolates were tested on S. sclerotiorum (SMZ11)growth in vitro. Generally, all tested isolates reduced the mycelial growth and sclerotia formation of the pathogen but it showed a contrast between treatments whereas T. harzianum (TH1) gave highly reduction of mycelial growth followed by T. viride (Tv1) and B. subtilis (B1). The same treatments were studied on the disease in a greenhouse at the Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, Egypt. All treatments significantly reduced the percentage of pre- and post-emergence damping off compared to the untreated control.Results in the greenhouse experiment were different from than laboratory test, where T. harzianum (TH1and TH3 ) and T. viride (Tv1) gave highly effect on disease incidence and survival plants which recorded 90, 85 and 85% survival plants respectively. Some commercial biocides were experimented on bean white mould disease in a greenhouse. The biocide (Blight stop) was highly effective on disease incidence which recorded 80% survival plants. In applied experiments commercial biocides and biocontrol agents isolates which give highly effect on bean white mould disease under the greenhouse were used to control the disease in the open field during the season (2021) from natural infestation and epidemically fields at Zawyet Razin, Menouf, Menoufia governorate, Egypt. Trichoderma harzianum (TH1) recorded highly reduction of disease incidence and high yield of bean crop while Rhizo-N was given low effect on the pathogen and smallest yield. Generally, all the tested biocontrol agents and commercial biocide treatments reduced the percentage of white mold incidence and severity of the treated dry bean plants compared with the untreated control.
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Claims 11
Claim · model-written summary
SMZ11 was the most aggressive Sclerotinia isolate in the pathogenicity test.
Verbatim
e0“In the pathogenicity isolate coding (SMZ11) was very aggressive than the other isolates.”
t0“DRY BEAN”
Claim · model-written summary
All tested isolates reduced pathogen mycelial growth and sclerotia formation in vitro.
- Taxon
- dry beant0
- Treatment
- all tested isolatese0
- Interactor
- the pathogene0pathogen
- Outcome
- mycelial growth and sclerotia formation of the pathogene0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Generally, all tested isolates reduced the mycelial growth and sclerotia formation of the pathogen”
t0“DRY BEAN”
Claim · model-written summary
T. harzianum TH1 had the greatest reduction of pathogen mycelial growth, followed by T. viride Tv1 and B. subtilis B1.
- Taxon
- dry beant0
- Treatment
- T. harzianum (TH1)e0
- Interactor
- T. harzianum (TH1)
Trichoderma harzianume0biocontrol_agent - Outcome
- mycelial growthe0
- Direction
- reductione0
- Comparator
- T. viride (Tv1) and B. subtilis (B1)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T. harzianum (TH1) gave highly reduction of mycelial growth followed by T. viride (Tv1) and B. subtilis (B1)”
t0“DRY BEAN”
Claim · model-written summary
All treatments significantly reduced pre- and post-emergence damping off in the greenhouse.
Verbatim
e0“All treatments significantly reduced the percentage of pre- and post-emergence damping off compared to the untreated control.”
t0“DRY BEAN”
Claim · model-written summary
T. harzianum TH1 produced a reported survival figure of 90 in the greenhouse.
- Taxon
- dry beant0
- Treatment
- T. harzianum (TH1e0
- Interactor
- T. harzianumTrichoderma harzianume0biocontrol_agent
- Outcome
- survival plantse0
- Value
- 90e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T. harzianum (TH1and TH3 ) and T. viride (Tv1) gave highly effect on disease incidence and survival plants which recorded 90, 85 and 85% survival plants respectively.”
t0“DRY BEAN”
Claim · model-written summary
T. harzianum TH3 produced 85% bean survival in the greenhouse.
- Taxon
- dry beant0
- Treatment
- TH3e0
- Interactor
- T. harzianumTrichoderma harzianume0biocontrol_agent
- Outcome
- survival plantse0
- Value
- 85%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T. harzianum (TH1and TH3 ) and T. viride (Tv1) gave highly effect on disease incidence and survival plants which recorded 90, 85 and 85% survival plants respectively.”
t0“DRY BEAN”
Claim · model-written summary
T. viride Tv1 produced 85% bean survival in the greenhouse.
- Taxon
- dry beant0
- Treatment
- T. viride (Tv1)e0
- Interactor
- T. viride (Tv1)
Trichoderma viridee0biocontrol_agent - Outcome
- survival plantse0
- Value
- 85%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T. harzianum (TH1and TH3 ) and T. viride (Tv1) gave highly effect on disease incidence and survival plants which recorded 90, 85 and 85% survival plants respectively.”
t0“DRY BEAN”
Claim · model-written summary
Blight stop yielded 80% bean survival in the greenhouse.
Not reportedComparatorDirection
Verbatim
e0“The biocide (Blight stop) was highly effective on disease incidence which recorded 80% survival plants.”
t0“DRY BEAN”
Claim · model-written summary
Field application of T. harzianum TH1 greatly reduced disease incidence and gave high bean yield.
- Taxon
- beane0
- Treatment
- Trichoderma harzianum (TH1)e0
- Interactor
- Trichoderma harzianum (TH1)Trichoderma harzianume0biocontrol_agent
- Outcome
- disease incidence and high yield of bean crope0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Trichoderma harzianum (TH1) recorded highly reduction of disease incidence and high yield of bean crop”
Claim · model-written summary
Rhizo-N had little effect on the pathogen and the smallest bean yield.
- Taxon
- dry beant0
- Treatment
- Rhizo-Ne0
- Outcome
- smallest yielde0
- Direction
- smalleste0
- Qualifier
- low effect on the pathogene0
Not reportedComparator
Verbatim
e0“Rhizo-N was given low effect on the pathogen and smallest yield.”
t0“DRY BEAN”
Claim · model-written summary
All tested biocontrol agents and biocides reduced white mould incidence and severity compared with untreated dry bean.
Verbatim
e0“all the tested biocontrol agents and commercial biocide treatments reduced the percentage of white mold incidence and severity of the treated dry bean plants compared with the untreated control.”
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See all 11 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.