Bilousova Z., Keneva V., Klipakova Yu. Sowing quality of winter wheat seeds depending on the component composition of protectants

UDC 632.952:633.111.1


Bilousova Z.

Keneva V.

Klipakova Yu.


In modern agricultural production fungicides and insecticides are used for protecting winter wheat seeds from fungal infections, differing in the amount and nature of active ingredients. Our study has been aimed at assessing the influence of multicomponent protectants on various growth parameters of winter wheat seedlings. The studies have been conducted in the laboratory using the roll method. Laboratory germination of seeds, the length, the raw and dry mass of seedlings and radicles, and seedling strength indices have been determined. Maxim XL, Insure Perform, Rancona I Mix, Lamardor Pro, Cantharis and Vibrance Integral have been used as protectants. Water treatment has served as a control measure. As a result of using all these protectants, there has been a decrease in laboratory germination of seeds and partial inhibition of their growth and accumulation of the dry matter by seedlings and radicles. It has been established that with the increase of the active substance amount in the tank mixture for the presowing seed treatment the seedling length decreases and its raw and dry mass decreases. Maxim XL, Insure Perform and Rancona I Mix have had the least harmful effect on these indices. The length of the root and its raw mass have been weakly dependent on the component composition of the protectants. With an increase in the amount of protectant active ingredients, there has been a tendency to reduce the dry mass of the roots (r = -0.73). As the amount of active ingredients in the protectant increased, the seedling strength indices decreased from 2054.36 to 907.50 for SVⅠ and from 2.12 to 0.77 for SVⅡ. The maximum positive effect from the presowing treatment of winter wheat seeds has been observed with the use of Maxim XL – the root length has increased by 4%, and the raw and dry mass of seedlings have increased by 9 and 11% respectively, compared to the control version. The seed treatment with Cantharis has reduced the laboratory germination index by 28% (rel.); the length of the seedling has been reduced by 64%, and the roots – by 20%; the raw and dry mass of seedlings have been reduced by 61 and 44%, and roots – by 16 and 50%, respectively, compared with the control. Based on this study, it has been concluded that increasing the number of active ingredients for the presowing treatment of seeds to 3 or more, it enhances the phytotoxical effect, which negatively affects the primary growth of plants.

Keywords: soft winter wheat, multicomponent protectants, presowing treatment, germination, seedlings, radicles.



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