Influence of selected soil-climatic parameters and application method of tribenuron methyl on biomass productivity and amino acids content in weeds
PBN-AR
Instytucja
Instytut Uprawy Nawożenia i Gleboznawstwa - Państwowy Instytut Badawczy
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Journal of Plant Diseases and Protection
ISSN
1861-3829
EISSN
1861-3837
Wydawca
EUGEN ULMER GMBH CO
DOI
URL
Rok publikacji
2014
Numer zeszytu
1
Strony od-do
26-31
Numer tomu
121
Identyfikator DOI
Liczba arkuszy
Autorzy
Słowa kluczowe
en
Anthemis arvensis
branched-chain amino acids
shoot fresh weight
Galium aparine
surfactant
tribenuron methyl
Stellaria media
environmental conditions
Open access
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Streszczenia
Język
en
Treść
Pot experiments were carried out in controlled environment chambers to investigate the influence of climatic factors and application methods on tribenuron methyl activity on three weed species: Anthemis arvensis, Galium aparine and Stellaria media. Tribenuron methyl was used at a dose of 15 g a.i. ha-1 solo or in mixture with a surfactant. Herbicide activity was subjected to the influence of environmental conditions such as: air temperature (25/16oC and 8/2oC day/night), relative humidity (75% and 50 %) and soil moisture (60% and 30%). Herbicide efficacy was evaluated on fresh weight and reduction in free branched-chain amino acids content. The surfactant affected tribenuron methyl efficacy differently, depending on the environmental conditions and weed species susceptibility. Control of S. media did not require addition of a surfactant to achieve a high efficacy. The joint application enhanced herbicide efficacy against A. arvensis compared to solo application under low relative humidity (RH). G. aparine was satisfactory controlled only when the surfactant was added to the spray solution, even under optimal environmental conditions. In most cases the amino acids content declined after exposure to tribenuron methyl and tank mix with the surfactant improved the reduction of amino acids content. Increased amino acid content was observed in G. aparine and A. arvensis exposed to low soil moisture and G. aparine exposed to 50% RH, probably due to amino acids overproduction as a response to environmental conditions.
Cechy publikacji
ORIGINAL_ARTICLE
Inne
System-identifier
581788