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Are prohexadione calcium and Pseudomonas fluorescens a solution to limit the spread of annual bluegrass (Poa annua L.) on football pitches?
ID Bohinc, Tanja (Author), ID Zanelli, Barbara (Author), ID Vidrih, Matej (Author), ID Trdan, Stanislav (Author)

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Abstract
In 2020, a greenhouse experiment was conducted to investigate the suppression of annual bluegrass (Poa annua), which is a difficult weed to manage in cool-season in turfgrass mixtures on football pitches. The efficacy of prohexadione calcium (Pc), ethephon (Eth) and Pseudomonas fluorescens against P. annua, Lolium perenne and Poa pratensis was tested, as the latter two most commonly occur in turfgrass mixtures on football pitches. Mesotrione (Mes) was used as a positive control, and nontreated grass was used as a negative control. Only a single grass species was sown in each pot. Treatments were randomly distributed for two experiments conducted separately: first – unmown grass before the beginning of spraying and second – grass mowed before the beginning of spraying. In both experiments, plant height and the number of tillers were measured/counted several times during the growing season. In both experiments, grasses were sprayed six times with Pc, Eth and P. fluorescens, while Mes was applied twice. Based on the performed study, the efficacy of the tested products is connected to grass species and whether the grass was mowed/cut before spraying. It has been detected in the present study that spraying with Pc could reduce the height of annual bluegrass, while spraying with P. fluorescens has reduced the number of tillers. Spraying was more effective on grasses that were mowed/cut before the beginning of spraying. Mes should cause severe damage to annual bluegrass but without confirmation in this study. Results of this study have indicated that the application of Pc and P. fluorescens can inhibit the spread of annual bluegrass in football pitches; however, testing their effectiveness against P. annua under field conditions should be performed as well.

Language:English
Keywords:annual bluegrass, Poa annua, ethephon, Kentucky bluegrass, mesotrione, perennial ryegrass, prohexadione calcium, Pseudomonas fluorescens
Typology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Publication status:Published
Publication version:Version of Record
Publication date:22.07.2021
Year:2021
Number of pages:Str. 275–292
Numbering:Vol 33, no. 2
PID:20.500.12556/RUL-134813 This link opens in a new window
UDC:633.2
ISSN on article:0867-1761
DOI:10.2478/fhort-2021-0021 This link opens in a new window
COBISS.SI-ID:76812035 This link opens in a new window
Publication date in RUL:03.02.2022
Views:420
Downloads:120
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Record is a part of a journal

Title:Folia Horticulturae
Shortened title:Folia Hortic.
Publisher:Polish Society for Horticultural Science
ISSN:0867-1761
COBISS.SI-ID:517530649 This link opens in a new window

Licences

License:CC BY-NC-ND 3.0, Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported
Link:http://creativecommons.org/licenses/by-nc-nd/3.0/
Description:You are free to reproduce and redistribute the material in any medium or format. You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you may not distribute the modified material. You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Licensing start date:22.07.2021

Secondary language

Language:Slovenian
Keywords:Poa annua, enoletna latovka, trave, Pseudomonas fluorescens, prohexadione kalcij, rastni regulatorji, nogometna igrišča

Projects

Funder:ARRS - Slovenian Research Agency
Project number:P4-0013
Name:Hortikultura

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