Abstract
Abstract Plants are a promising source of a wide range of biologically active substances as biopesticides and growth stimulants in organic agriculture. Screening of the antimicrobial activity of ethanol extracts of air-dry aboveground biomass of 22 plant species of the family Asteraceae, typical representatives of the flora of the Republic of Tatarstan, was carried out. The antibacterial activity of greater knapweed ( Centaurea scabiosa L.), milk thistle ( Silybum marianum (L.) Gaertn), scentless mayweed ( Tripleurospermum inodorum (L.) Sch. Bip.), marsh cudweed ( Gnaphalium uliginosum L.) against test strains of microorganisms – Clavibacter michiganensis VKM Ac-1404 (phytopathogenic gram-positive bacterium) and Alternaria solani St108 (phytopathogenic fungi) was established. The highest indices of inhibitory activity were found in the case of marsh cudweed - 0.0063%. The efficiency of pre-sowing treatment of seeds and foliar treatment of plants with an aqueous solution the potassium salts of terpene acids of Siberian cedar pine resin on the yield of winter wheat variety Kazanskaya-560 on gray forest soil at the Republic of Tatarstan was revealed. The yield increase was 3.7-3.9% to control. The grain size indicator (1000 grains weight) varied in the range of 36-38 g with the highest values in the case of pre-sowing treatment.
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Claims 4
Claim · model-written summary
Marsh cudweed (Gnaphalium uliginosum) extract showed the highest inhibitory activity, 0.0063%, against Clavibacter michiganensis and Alternaria solani.
- Taxon
- Gnaphalium uliginosum
Gnaphalium uliginosume4 - Material
- marsh cudweede1
- Interactor
- Clavibacter michiganensis
Clavibacter michiganensise3pathogen - Second interactor
- Alternaria solani
Alternaria solanie3pathogen - Outcome
- highest indices of inhibitory activitye1
- Value
- 0.0063%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“Screening of the antimicrobial activity of ethanol extracts of air-dry aboveground biomass of 22 plant species of the family Asteraceae”
e1“The highest indices of inhibitory activity were found in the case of marsh cudweed - 0.0063%”
e3“Clavibacter michiganensis VKM Ac-1404 (phytopathogenic gram-positive bacterium) and Alternaria solani St108 (phytopathogenic fungi)”
e4“marsh cudweed ( Gnaphalium uliginosum L.)”
Claim · model-written summary
Extracts of greater knapweed, milk thistle and scentless mayweed showed antibacterial activity against Clavibacter michiganensis.
- Taxon
- AsteraceaeAsteraceaee0
- Material
- greater knapweed ( Centaurea scabiosa L.), milk thistle ( Silybum marianum (L.) Gaertn), scentless mayweed ( Tripleurospermum inodorum (L.) Sch. Bip.)e2
- Interactor
- Clavibacter michiganensis
Clavibacter michiganensise3pathogen - Outcome
- antibacterial activitye2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Screening of the antimicrobial activity of ethanol extracts of air-dry aboveground biomass of 22 plant species of the family Asteraceae”
e2“The antibacterial activity of greater knapweed ( Centaurea scabiosa L.), milk thistle ( Silybum marianum (L.) Gaertn), scentless mayweed ( Tripleurospermum inodorum (L.) Sch. Bip.)”
e3“Clavibacter michiganensis VKM Ac-1404 (phytopathogenic gram-positive bacterium) and Alternaria solani St108 (phytopathogenic fungi)”
Claim · model-written summary
Pre-sowing seed and foliar treatment with potassium salts of pine resin terpene acids increased winter wheat yield by 3.7–3.9% over control.
- Taxon
- winter wheat
Triticum aestivume5 - Material
- Kazanskaya-560e5
- Treatment
- pre-sowing treatment of seeds and foliar treatment of plants with an aqueous solution the potassium salts of terpene acids of Siberian cedar pine resine5
- Outcome
- yielde6
- Direction
- increasee6
- Value
- 3.7-3.9%e6
- Comparator
- controle6
- Setting
- gray forest soil at the Republic of Tatarstane5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e5“The efficiency of pre-sowing treatment of seeds and foliar treatment of plants with an aqueous solution the potassium salts of terpene acids of Siberian cedar pine resin on the yield of winter wheat variety Kazanskaya-560 on gray forest soil at the Republic of Tatarstan was revealed”
e6“The yield increase was 3.7-3.9% to control”
Claim · model-written summary
The 1000-grain weight of winter wheat was 36–38 g, highest with pre-sowing treatment.
- Taxon
- winter wheat
Triticum aestivume5 - Outcome
- grain size indicator (1000 grains weight)e7
- Value
- 36-38 ge7
- Qualifier
- with the highest values in the case of pre-sowing treatmente7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e5“The efficiency of pre-sowing treatment of seeds and foliar treatment of plants with an aqueous solution the potassium salts of terpene acids of Siberian cedar pine resin on the yield of winter wheat variety Kazanskaya-560 on gray forest soil at the Republic of Tatarstan was revealed”
e7“The grain size indicator (1000 grains weight) varied in the range of 36-38 g with the highest values in the case of pre-sowing treatment”
The same questions in other papers
potassium salt · yield · Triticum aestivum (wheat)Results agree
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- positive
application · yield · Triticum aestivum (wheat)Positive and negative results
794 papers in the same direction as this paper · 75 in the opposite direction · 7 reporting no difference from an alternative
- no effect
- negative
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See all 877 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.