Abstract
[Objective] The purpose was to study the control efficacy of Stellera chamaejasme extracts on cucumber mosaic disease of tobacco.[Method] The S.chamaejasme extracts with different concn.were sprayed on tobacco seedlings.The disease status of cucumber mosaic disease of tobacco and the change of virus concn.in tobacco were observed so as to ascertain the control effect.[Result] The control effects of spraying S.chamaejasme extracts at 1 500,1 875 and 2 250 ml/hm2 on cucumber mosaic disease of tobacco after 10 d were 55.0%,59.0% and 59.6% respectively and that of spraying 20% virus A WP at 1 500 g/hm2 was 56.9%.The difference on disease index between the treatment with S.chamaejasme extracts and CK(clear water) was extremely significant.The virus concn.in tobacco leaves sprayed S.chamaejasme extracts reduced by 43.2%～45.9% after 10 d.[Conclusion] S.chamaejasme extracts had significant inhibitory effect on cucumber mosaic virus of tobacco and also could control the other diseases and had wider popularization prospects.
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Claims 6
Claim · model-written summary
Stellera extract at 1 500 ml/hm2 gave 55.0% control after 10 days.
- Taxon
- tobacco
Nicotiana tabacume0 - Treatment
- S.chamaejasme extracts at 1 500e0
- Outcome
- control effectse0
- Value
- 55.0%e0
- Qualifier
- after 10 de0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The control effects of spraying S.chamaejasme extracts at 1 500,1 875 and 2 250 ml/hm2 on cucumber mosaic disease of tobacco after 10 d were 55.0%,59.0% and 59.6% respectively”
Claim · model-written summary
Stellera extract at 1 875 ml/hm2 gave 59.0% control after 10 days.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- S.chamaejasme extractse0
- Outcome
- control effectse0
- Value
- 59.0%e0
- Qualifier
- after 10 de0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The control effects of spraying S.chamaejasme extracts at 1 500,1 875 and 2 250 ml/hm2 on cucumber mosaic disease of tobacco after 10 d were 55.0%,59.0% and 59.6% respectively”
Claim · model-written summary
Stellera extract at 2 250 ml/hm2 gave 59.6% control after 10 days.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- S.chamaejasme extractse0
- Outcome
- control effectse0
- Value
- 59.6%e0
- Qualifier
- after 10 de0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The control effects of spraying S.chamaejasme extracts at 1 500,1 875 and 2 250 ml/hm2 on cucumber mosaic disease of tobacco after 10 d were 55.0%,59.0% and 59.6% respectively”
Claim · model-written summary
Virus A WP at 1 500 g/hm2 gave 56.9% control.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- 20% virus A WP at 1 500 g/hm2e0
- Outcome
- control effectse0
- Value
- 56.9%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The control effects of spraying S.chamaejasme extracts at 1 500,1 875 and 2 250 ml/hm2 on cucumber mosaic disease of tobacco after 10 d were 55.0%,59.0% and 59.6% respectively and that of spraying 20% virus A WP at 1 500 g/hm2 was 56.9%”
Claim · model-written summary
Stellera extract treatment changed disease index significantly against water control.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- S.chamaejasme extractse0
- Outcome
- disease indexe0
- Comparator
- CK(clear water)e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“difference on disease index between the treatment with S.chamaejasme extracts and CK(clear water) was extremely significant”
t0“Tobacco”
Claim · model-written summary
Stellera extract reduced virus concentration in tobacco leaves by 43.2% to 45.9% after 10 days.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- S.chamaejasme extractse0
- Outcome
- virus concn.in tobacco leavese0
- Direction
- reducede0
- Value
- 43.2%～45.9%e0
- Qualifier
- after 10 de0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“virus concn.in tobacco leaves sprayed S.chamaejasme extracts reduced by 43.2%～45.9% after 10 d”
The same questions in other papers
botanical · organism · Nicotiana tabacum (tobacco)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
1 paper more in this group
See all 5 papers →botanical · control · Nicotiana tabacum (tobacco)Results agree
3 papers in the same direction as this paper
- positive
- positive
- 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.