Abstract
Bacterial blight caused by Xanthomonas axonopodis pv. phaseoli is a severe disease in French bean (Phaseolus vulgaris L.), leading to yield losses of about 10–40%, depending on the susceptibility of the cultivar and environmental conditions. The study was carried out during rainy (kharif) season of 2020 and 2021 at Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Himachal Pradesh, to evaluate the effectiveness of various management strategies, including chemical treatments and bioagents, to mitigate. Efficacy of different chemicals was evaluated under in vitro conditions using well diffusion method. The results showed streptocycline as the most potent inhibitor of Xanthomonas axonopodis pv. phaseoli showing maximum zone of inhibition (22.20 mm). Further evaluation of chemicals under pot culture experiment revealed that seed treatment using streptocycline (100 ppm) combined with three foliar sprays of copper oxychloride (0.3%) applied at 7 days interval was the most effective strategy, significantly reducing the disease severity. During the field trials the combination treatments (T6 and T7) proved most effective in reducing disease indices and increasing yield with the highest disease control and yield per hectare. Seed treatment using streptocycline (100 ppm) and spray of copper oxychloride (0.3%) (T6) provided the most robust results followed by the combination of seed treatment with streptocycline (100 ppm) and streptocycline spray (T7). These treatments not only controlled the disease effectively but also offered the best economic returns as indicated by the ICBR ratios. The findings emphasize the effectiveness of combining seed treatments and foliar sprays in controlling bacterial blight and improving French bean productivity.
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Claims 6
Claim · model-written summary
Streptocycline gave the maximum inhibition zone against the blight bacterium in vitro.
- Taxon
- French bean
Phaseolus vulgarise1 - Treatment
- streptocyclinee0
- Interactor
- Xanthomonas axonopodis pv. phaseoliXanthomonas phaseoli pv. phaseolie0pathogen
- Outcome
- zone of inhibitione0
- Direction
- maximume0
- Value
- 22.20 mme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed streptocycline as the most potent inhibitor of Xanthomonas axonopodis pv. phaseoli showing maximum zone of inhibition (22.20 mm).”
e1“Bacterial blight caused by Xanthomonas axonopodis pv. phaseoli is a severe disease in French bean (Phaseolus vulgaris L.)”
Claim · model-written summary
Seed streptocycline plus copper oxychloride sprays most effectively reduced blight severity in pots.
- Taxon
- French beanPhaseolus vulgarise1
- Treatment
- seed treatment using streptocycline (100 ppm) combined with three foliar sprays of copper oxychloride (0.3%)e0
- Interactor
- Xanthomonas axonopodis pv. phaseoliXanthomonas phaseoli pv. phaseolie1pathogen
- Outcome
- disease severitye0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed treatment using streptocycline (100 ppm) combined with three foliar sprays of copper oxychloride (0.3%) applied at 7 days interval was the most effective strategy, significantly reducing the disease severity.”
e1“Bacterial blight caused by Xanthomonas axonopodis pv. phaseoli is a severe disease in French bean (Phaseolus vulgaris L.)”
Claim · model-written summary
Field combination treatments T6 and T7 reduced disease indices.
- Taxon
- French beanPhaseolus vulgarise1
- Treatment
- combination treatments (T6 and T7)e0
- Interactor
- Xanthomonas axonopodis pv. phaseoliXanthomonas phaseoli pv. phaseolie1pathogen
- Outcome
- disease indicese0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the field trials the combination treatments (T6 and T7) proved most effective in reducing disease indices and increasing yield with the highest disease control and yield per hectare.”
e1“Bacterial blight caused by Xanthomonas axonopodis pv. phaseoli is a severe disease in French bean (Phaseolus vulgaris L.)”
Claim · model-written summary
Field combination treatments T6 and T7 increased yield.
- Taxon
- French beanPhaseolus vulgarise1
- Treatment
- combination treatments (T6 and T7)e0
- Outcome
- yielde0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the field trials the combination treatments (T6 and T7) proved most effective in reducing disease indices and increasing yield with the highest disease control and yield per hectare.”
e1“French bean (Phaseolus vulgaris L.)”
Claim · model-written summary
T6 provided the strongest field results, followed by T7.
- Taxon
- French beanPhaseolus vulgarise1
- Treatment
- Seed treatment using streptocycline (100 ppm) and spray of copper oxychloride (0.3%)e0
- Outcome
- most robust resultse0
- Direction
- most robuste0
- Comparator
- seed treatment with streptocycline (100 ppm) and streptocycline spraye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed treatment using streptocycline (100 ppm) and spray of copper oxychloride (0.3%) (T6) provided the most robust results followed by the combination of seed treatment with streptocycline (100 ppm) and streptocycline spray (T7).”
e1“French bean (Phaseolus vulgaris L.)”
Claim · model-written summary
The combination treatments gave the best economic returns.
- Taxon
- French beanPhaseolus vulgarise1
- Treatment
- These treatmentse0
- Outcome
- economic returnse0
- Direction
- beste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These treatments not only controlled the disease effectively but also offered the best economic returns as indicated by the ICBR ratios.”
e1“French bean (Phaseolus vulgaris L.)”
The same questions in other papers
copper atom · Xanthomonas phaseoli pv. phaseoli · Phaseolus vulgaris (common bean)Results agree
1 paper in the same direction as this paper
- positive
application · Xanthomonas phaseoli pv. phaseoli · Phaseolus vulgaris (common bean)Positive and negative results
1 in the opposite direction
- no effect
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.