Performance of Symmetric Double Flat Fan Nozzles against Fusarium Head Blight in Durum Wheat

Filip Vučajnk, Valentina Spanic, Stanislav Trdan, Iztok Jože Košir, Miha Ocvirk and Matej Vidrih ()
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Filip Vučajnk: Department of Agronomy, University of Ljubljana, 1000 Ljubljana, Slovenia
Valentina Spanic: Department of Small Cereal Crops Breeding and Genetics, Agricultural Institute Osijek, 31000 Osijek, Croatia
Stanislav Trdan: Department of Agronomy, University of Ljubljana, 1000 Ljubljana, Slovenia
Iztok Jože Košir: Department for Agrochemistry and Brewing, Slovenian Institute of Hop Research and Brewing, 3310 Žalec, Slovenia
Miha Ocvirk: Department for Agrochemistry and Brewing, Slovenian Institute of Hop Research and Brewing, 3310 Žalec, Slovenia
Matej Vidrih: Department of Agronomy, University of Ljubljana, 1000 Ljubljana, Slovenia

Agriculture, 2024, vol. 14, issue 3, 1-16

Abstract: Four types of nozzles were tested on large-scale trials with a 40 m 2 plot unit size. The Avi Twin 110-01 (80 L ha −1 ), 110-02 (160 L ha −1 ), 110-03 (240 L ha −1 ), and 110-04 (320 L ha −1 ) symmetric double fan injector nozzles were tested during the 2020/2021 and 2021/2022 growing seasons. This study aimed to evaluate the performance of spray nozzles with regard to deoxynivalenol (DON) accumulation in durum wheat grains. Artificial inoculation with Fusarium spp. was performed after durum heads were protected with fungicide. The percentage of heads covered with fungicide droplets, grain yield, yield-related traits, technological quality parameters, and concentrations of DON were determined. Compared to the control (without fungicide treatment), the Avi Twin 04 nozzle caused a reduction of 45.0% in the DON concentration on average across both growing seasons. This positively corresponded to the percentage of heads covered with fungicide droplets, which was highest when this nozzle was utilized. In both trial years, the DON reduction caused by the 110-04 twin nozzle was higher than that caused by the 110-01 nozzle. Treatment with the 110-04 nozzle more effectively improved the grain yield, 1000-kernel weight, and test weight compared to treatment with the 110-01 nozzle and the untreated control. The differences in technological quality were less pronounced when different spray nozzles were used.

Keywords: deoxynivalenol; durum wheat; technological application; grain yield; spray nozzle (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2024
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