Fungicidal protectants Delete Pro and Redigo Pro against fungal phytopathogens of soybeans
https://doi.org/10.26898/0370-8799-2021-2-5
Abstract
The results of research into effectiveness of fungicidal protectants against root rot and leaf-stem diseases of soybeans are presented. The study was carried out in the Primorsky Territory in 2019, 2020 in the conditions of plot experiment. Delete Pro (active agent pyraclostrobin, 200 g/l) was used at a consumption rate of 1.0 l/t, Redigo Pro (active agent prothioconazole, 150 g/l + tebuconazole, 20 g/l) – 0.9 l/t. The preparations were used for seed treatment in a semi-dry way before sowing. It was revealed that Delete Pro and Redigo Pro do not have a negative effect on the crop and have a positive effect on the germination of soybean seeds. A high fungicidal activity of the protectants used in the experiment was noted in relation to root rot affecting the crop. The chemicals helped to reduce the intensity of infections during the flowering phase by 17.0% (Delete Pro) and 24.9% (Redigo Pro). The protective effect of pre-sowing seed treatment with protectants was also revealed in reducing leaf-stem diseases. It was found that the chemicals have high biological effectiveness against septoria (16.7–25.2%), cercosporosis (0–44.6%) and peronosporosis (29.5–87.5%). The use of Delete Pro and Redigo Pro contributed to active growth of plants and an increase in the main productivity indicators: seed weight by 0.1–0.6 g, seed number by 1.4–2.8 pcs from one plant, as well as thousand-seed-weight by 8.5–9.3 g. Significant increase in grain yield of 0.19 t/ha (2019) and 0.20 t/ha (2020) was obtained in the variant with Redigo Pro. The protectants used contributed to the increase in the profitability level by 222 and 564%, respectively.
About the Authors
S. V. Bezmutko
The Far Eastern Research Institute of Plant Protection
Russian Federation
Russian Federation
Svetlana V. Bezmutko - Researcher.
42a, Mira St., Kamen-Rybolov, Primorsky Territory, 692684.
T. A. Cherepanova
The Far Eastern Research Institute of Plant Protection
Russian Federation
Russian Federation
Tatiana A. Cherepanova - Junior Researcher.
42a, Mira St., Kamen-Rybolov, Primorsky Territory, 692684.
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Review
For citations:
Bezmutko S.V., Cherepanova T.A. Fungicidal protectants Delete Pro and Redigo Pro against fungal phytopathogens of soybeans. Siberian Herald of Agricultural Science. 2021;51(2):40-48. https://doi.org/10.26898/0370-8799-2021-2-5
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