20.500.12556/DKUM-78339 Analiza možnosti zatiranja pelinolistne ambrozije v posevkih buč (Cucurbita pepo L.) Analysis of Potential Suppression of Ambrosia artemisiifolia in Pumpkin Crops (Cucurbita pepo L.) V sezoni 2018 je bil narejen poljski poskus, katerega namen je bila analiza možnosti zatiranja pelinolistne ambrozije v posevku oljnih buč (hibrida 'GL Sonne' in 'GL Rustikal') z aktivno snovjo halosulfuron–metil in analiza vpliva herbicida na rast in razvoj oljnih buč ter pridelka bučnih semen. Prav tako smo na oljnih bučah preučili vpliv dodanega sredstva za krepitev rasti z aktivno snovjo 24R-epibrasinolid na zmanjševanje poškodb, povzročenih od herbicida. Aktivna snov halosulfuron-metil je v primerjavi s kontrolo v vseh apliciranih odmerkih statistično značilno znižala število rastlin pelinolistne ambrozije. Aktivna snov je sicer povzročila začetno fitotoksičnost na oljnih bučah, ki pa so jo te skozi rastno dobo popolnoma sanirale in zaradi fitotoksičnosti ni bilo zmanjšanega pridelka. Ugotovili smo, da sredstvo za krepitev rastlin statistično značilno znižuje stopnjo poškodb na oljnih bučah, povzročenih zaradi herbicida, vendar je učinek sredstva opazen pri obravnavanjih z višjimi odmerki herbicida. Prav tako preučevana aktivna snov ne vpliva značilno na pridelek svežih in posušenih bučnih semen, saj se nobeno obravnavanje statistično značilno ne razlikuje od plevelov prostih kontrol, kjer nismo uporabili herbicida. In the 2018 season, a field experiment was conducted to analyse the possibility of controlling common ragweed in the oil pumpkin crop (varieties 'GL Sonne' and 'GL Rustikal') with the active substance halosulfuron-methyl and to analyse the effect of the herbicide on the growth and development of oil pumpkins and pumpkin seed yield. We also examined the effect of the added plant strengthening agent, whose active substance is 24R-Epibrassinolide, on reducing herbicide damage on oil pumpkins. The active substance halosulfuron-methyl significantly reduced the number of common ragweed in all applied doses compared to the control group. The active substance caused initial phytotoxicity on oil pumpkins, which was completely rehabilitated during the growing season and due to phytotoxicity there was no reduction in yield. We found that plant strengthening agent significantly reduces herbicide-induced damage to oil pumpkins; however, the effect was observed in treatments with higher herbicide doses. Also, the studied active substance does not significantly affect the yield of fresh and dried pumpkin seeds, as no treatment is statistically significantly different from weed free controls where no herbicide was used. Oljne buče herbicid ambrozija zatiranje pleveli pumpkins herbicide ambrosia suppresion weeds true true false Slovenski jezik Angleški jezik Magistrsko delo/naloga 2020-12-09 22:40:51 2021-01-04 13:39:28 2022-08-09 18:59:27 2021-01-05 03:24:54 2020 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 URN:SI:UM:DK:95YP0GCI MAG_Leben_Matic_2020.pdf MAG_Leben_Matic_2020.pdf 1 8E5242B554E6938AD24B5C3F53BE2143 51adf1a480ecf00089a65601dacfecc733f97bd3daef67d287e116327176a435 08da6f1f-7c12-11eb-bb7a-00155d0001ca 20.500.12556/dkum/264147b9-5187-49eb-a12f-94de31ee75da https://dk.um.si/Dokument.php?lang=slv&id=147934 Fakulteta za kmetijstvo in biosistemske vede 0 0 0