Sensitivity of sunflower cultivar PR63E82 to tribenuron and propaquizafop in different weather conditions
The aim of this work was to verify and assess the tolerance of the PR63E82 (ExpressSun) sunflower cultivar to tribenuron, propaquizafop and their tank-mix combination in two rates under various weather conditions. Three small-plot field trials were carried out on sunflower in Prague, Czech Republic,...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2018-10-01
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| Series: | Plant, Soil and Environment |
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| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-201810-0003_sensitivity-of-sunflower-cultivar-pr63e82-to-tribenuron-and-propaquizafop-in-different-weather-conditions.php |
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| author | Lukáš TICHÝ Miroslav JURSÍK Michaela KOLÁŘOVÁ Václav HEJNÁK Jiří ANDR Jaroslava MARTINKOVÁ |
| author_facet | Lukáš TICHÝ Miroslav JURSÍK Michaela KOLÁŘOVÁ Václav HEJNÁK Jiří ANDR Jaroslava MARTINKOVÁ |
| author_sort | Lukáš TICHÝ |
| collection | DOAJ |
| description | The aim of this work was to verify and assess the tolerance of the PR63E82 (ExpressSun) sunflower cultivar to tribenuron, propaquizafop and their tank-mix combination in two rates under various weather conditions. Three small-plot field trials were carried out on sunflower in Prague, Czech Republic, from 2015 to 2017. High phytotoxicity (25-56%) of tribenuron (TBM) + non-ionic surfactant was observed in 2015 and 2016 when the sunflower was sown in mid-April. In 2017, phytotoxicity was significantly lower (4-6%), probably due to a later sowing of sunflower (May), and hence higher temperatures. The main symptoms of TBM phytotoxicity were leaf chlorosis, necrosis and growth retardation. Propaquizafop (PQF) injury was minimal in 2015 and 2017. A higher phytotoxicity (10-13%) was recorded in 2016, probably due to a hail which occurred 2 days after T2 (second application term (sunflower BBCH 14)) application. Plant injury had puckered leaves and also made more side branches. TBM + PQF damaged sunflower plants most of the tested herbicide treatments (phytotoxicity 3-62%). High phytotoxicity caused stem branching, increased number of sunflower heads and decreased yield. |
| first_indexed | 2024-04-10T08:08:46Z |
| format | Article |
| id | doaj.art-9f56f81b51d245f7addfede04182498c |
| institution | Directory Open Access Journal |
| issn | 1214-1178 1805-9368 |
| language | English |
| last_indexed | 2024-04-10T08:08:46Z |
| publishDate | 2018-10-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant, Soil and Environment |
| spelling | doaj.art-9f56f81b51d245f7addfede04182498c2023-02-23T03:46:39ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682018-10-01641047948310.17221/343/2018-PSEpse-201810-0003Sensitivity of sunflower cultivar PR63E82 to tribenuron and propaquizafop in different weather conditionsLukáš TICHÝ0Miroslav JURSÍK1Michaela KOLÁŘOVÁ2Václav HEJNÁK3Jiří ANDR4Jaroslava MARTINKOVÁ5Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech RepublicDepartment of Agroecology and Biometeorology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech RepublicDepartment of Agroecology and Biometeorology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech RepublicDepartment of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech RepublicDepartment of Agroecology and Biometeorology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech RepublicDepartment of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech RepublicThe aim of this work was to verify and assess the tolerance of the PR63E82 (ExpressSun) sunflower cultivar to tribenuron, propaquizafop and their tank-mix combination in two rates under various weather conditions. Three small-plot field trials were carried out on sunflower in Prague, Czech Republic, from 2015 to 2017. High phytotoxicity (25-56%) of tribenuron (TBM) + non-ionic surfactant was observed in 2015 and 2016 when the sunflower was sown in mid-April. In 2017, phytotoxicity was significantly lower (4-6%), probably due to a later sowing of sunflower (May), and hence higher temperatures. The main symptoms of TBM phytotoxicity were leaf chlorosis, necrosis and growth retardation. Propaquizafop (PQF) injury was minimal in 2015 and 2017. A higher phytotoxicity (10-13%) was recorded in 2016, probably due to a hail which occurred 2 days after T2 (second application term (sunflower BBCH 14)) application. Plant injury had puckered leaves and also made more side branches. TBM + PQF damaged sunflower plants most of the tested herbicide treatments (phytotoxicity 3-62%). High phytotoxicity caused stem branching, increased number of sunflower heads and decreased yield.https://pse.agriculturejournals.cz/artkey/pse-201810-0003_sensitivity-of-sunflower-cultivar-pr63e82-to-tribenuron-and-propaquizafop-in-different-weather-conditions.phphelianthus annuus l.oilseed cropweed controlpesticideapplication dateherbicide tolerant crop |
| spellingShingle | Lukáš TICHÝ Miroslav JURSÍK Michaela KOLÁŘOVÁ Václav HEJNÁK Jiří ANDR Jaroslava MARTINKOVÁ Sensitivity of sunflower cultivar PR63E82 to tribenuron and propaquizafop in different weather conditions Plant, Soil and Environment helianthus annuus l. oilseed crop weed control pesticide application date herbicide tolerant crop |
| title | Sensitivity of sunflower cultivar PR63E82 to tribenuron and propaquizafop in different weather conditions |
| title_full | Sensitivity of sunflower cultivar PR63E82 to tribenuron and propaquizafop in different weather conditions |
| title_fullStr | Sensitivity of sunflower cultivar PR63E82 to tribenuron and propaquizafop in different weather conditions |
| title_full_unstemmed | Sensitivity of sunflower cultivar PR63E82 to tribenuron and propaquizafop in different weather conditions |
| title_short | Sensitivity of sunflower cultivar PR63E82 to tribenuron and propaquizafop in different weather conditions |
| title_sort | sensitivity of sunflower cultivar pr63e82 to tribenuron and propaquizafop in different weather conditions |
| topic | helianthus annuus l. oilseed crop weed control pesticide application date herbicide tolerant crop |
| url | https://pse.agriculturejournals.cz/artkey/pse-201810-0003_sensitivity-of-sunflower-cultivar-pr63e82-to-tribenuron-and-propaquizafop-in-different-weather-conditions.php |
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