Assessment of the Influence of Modern Protectants  on the Germination of Seeds and Growth of Seedlings of Grain Crops

Baybakova, E. V.; Нефедьева, Е Э; Белопухов, С Л

doi:10.21285/2227-2925-2016-6-3-57-64

Cited by 5 publications

(3 citation statements)

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“…For 300 μg/10 seeds, the length of seedlings and roots was the smallest 45.4 mm and 25.8 mm, for 200 μg/10 seeds -68.8 mm and 46.9 mm, for 100 μg/10 seeds -58.7 mm and 39.9 mm. While in control, these characteristics were 93.5 mm and 43.9 mm, respectively (Baybakova et al, 2016).…”

Section: Discussionmentioning

confidence: 82%

Influence of seed treatment on microbiota and development of winter wheat seedlings

Рожкова¹,

Stankevych²,

Matsyura³

2021

Ukr J Ecol

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The microbiota of winter wheat seeds from the North-East of Ukraine was studied by a biological method. Its considerable variability is established over three years (2017–2019). The effect of the treatment agents on most microorganisms of wheat seed microbiota in Ukraine, rather than on its genera and species, is shown. It has been proven that fungicides deleted some species and did not affect the development of others. Chemicals replaced some species or genera of fungi with others or even other microorganisms. Biological seed treatment (Phytosporin-M) has caused less microbiota change than chemical treatment (Maxim 0.25 FS, Rostock, Kinto Duo). Fungicides have replaced the dominance of Alternaria spp. (2017 – 57.8%, 2018 – 63.5%) for the dominance of yeast (Rostock – 54%) and Aureobasidium pullulans (Maxim 0.25 FS – 84.2%) in 2017, bacteria (Maxim 0.25 FS – 72.3%, Rostock – 53.8%) – in 2018. A. pullulans dominated in the microbiota of winter wheat seeds in 2019. The highest amount of A. pullulans was noted for the treatment of seeds by Phytosporin-M (85.9%). The biological seed treatment reduced the amount of Nigrospora spp. and Alternaria spp. Several times (3 and 5, respectively), chemical agents did not give Nigrospora spp. germination reduced the amount of A. pullulans, Alternaria spp. in 2019. Maxim 0.25 FS, Rostock 50%, and Kinto Duo delayed seed germination and seedling development on agar medium and soil, whereas Phytosporin-M – on the contrary, promoted the growth of seedlings and significantly exceeded control.

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Section: Discussionmentioning

confidence: 82%

Influence of seed treatment on microbiota and development of winter wheat seedlings

Рожкова¹,

Stankevych²,

Matsyura³

2021

Ukr J Ecol

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“…Many fungicides are known to have a toxic effect both independently [15,16] and indirectly, through their influence on the production of mycotoxins in addition to their protective effect. The choice of a.s. in our experiments is based on the fact that triazoles inhibit the production of mycotoxins [7], and strobilurins increase it [9].…”

Section: Resultsmentioning

confidence: 99%

Influence of fungicides on toxigenic properties of phytopathogenic fungi

et al. 2020

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Fusarium infection promotes losses of yield and death of plants. Fusarium infections are dangerous because grains contain fusariotoxins that cause intoxication in humans and animals, as well as necrosis of plant tissues and changes in plant growth. Fungicides inhibit the growth of mycelium, but strobilurins are known to promote the production of mycotoxins by fungi, and triazoles, on the contrary, reduce the production of deoxynivalenol. The toxigenic effect of fungicides was assessed by biotest method. Wheat grains were germinated with the addition of disinfected culture fluid. The culture fluid after the cultivation of Fusarium oxysporum with addition of azoxystrobin and pyraclostrobin in small doses was toxic for grains. The death of a significant part of the grains was noted in it. The fungistatic effect of small doses was not expressed. Therefore, the adaptation of the fungus was realized as a change in metabolism. High doses of azoxystrobin and pyraclostrobin in culture fluid increased seed germination. Those doses had a fungistatic effect. The addition of carbendazim increased the fungistatic effect and decreased the toxicity of the strain. Development of combined fungicides with sufficient doses of active substances reduces the risk of inhibition of the growth of the protected crops.

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“…Fungicides have a slight species-specificity of phytotoxic action. When choosing a mordant and developing combined preparations, a possible phytotoxic effect should be considered, depending on the dose of the mordant [2].…”

Section: Introductionmentioning

confidence: 99%

Efficacy and phytotoxicity of various thiabendazole and tebuconazole ratios in a fungicidal mordant

Trukhachev,

Nefedieva,

Zorkina

et al. 2024

BIO Web Conf.

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When developing combined preparations, a possible phytotoxic effect should be considered, depending on the dose of the mordant. Fusarium oxysporum and Pyrenophora graminea strains were cultured in a liquid enrichment culture with the addition of fungicides at a concentration of 1.5; 2.5; 3.3 ppm. Wheat grains of the Avesta variety were treated with thiabendazole and tebuconazole in the following doses: 20 g a.d./ t, 30 g a.d./t, 60 g a.d./t, 80 g a.d./t, 100 g a.d./t of grain. The effectiveness of tebuconazole and thiabendazole on mycelium growth slightly depended on their concentration. A.d. mutually reinforced each other. The synergism of the action of two a.d. is revealed. The analysis of variance showed that the effect of tebuconazole was greater than the thiabendazole effect. For both strains, the optimal ratios of tebuconazole and thiabendazole are 1.5:2.5 ppm. The addition of salicylic acid is effective at ratios of 2.5:0 and 2.5:3.3. The mixture of thiabendazole and tebuconazole reduced the germination energy of the grains mainly due to the appearance of abnormal seedlings. A composition of active substances for seed etching is proposed, including the following ratios of components, pts. wt.: tebuconazole 20-100, thiabendazole 20-150.

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Assessment of the Influence of Modern Protectants on the Germination of Seeds and Growth of Seedlings of Grain Crops

Cited by 5 publications

References 0 publications

Influence of seed treatment on microbiota and development of winter wheat seedlings

Influence of seed treatment on microbiota and development of winter wheat seedlings

Influence of fungicides on toxigenic properties of phytopathogenic fungi

Efficacy and phytotoxicity of various thiabendazole and tebuconazole ratios in a fungicidal mordant

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