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2021, № 3 (45) |
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GENERAL AGRICULTURE, PLANT GROWING
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Baybakova E.V., Nefedeva E.E., Belopukhov S.L., Zorkina O.V., Zheltobryukhov V.F., Kolotova O.V., Mogilevskaya I.V. |
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Physiological features of the action of fludioxonil and cyproconazole on the germination of wheat kernels |
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In this work, a comprehensive assessment of the fungicidal and phytotoxic action of the fungicides cyproconazole and fludioxonil, both separately and in a mixture on wheat, was carried out for the first time. In the studied doses, cyproconazole and fludioxonil demonstrated high efficacy against phytopathogenic fungi. Under the influence of a number of doses of fungicides, inhibition of the growth of shoots and roots was observed. Ciproconazole inhibited shoot growth, while fludioxonil inhibited growth only at high doses; by the 8th day of germination, the inhibition of the growth of wheat seedlings ceased. By this time, under the action of fungicides, the relative growth rate increased, especially in those variants where growth was initially inhibited. The net productivity of photosynthesis in most of the variants corresponded to the control. The recommended doses of fungicides did not reduce the chlorophyll content and its fluorescence. According to the complex of features, preference was given to the combination of CF 1: 4 as effective against phytopathogenic fungi, possessing neither retardant nor stimulating effect.
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