EFFECT OF PRE-PLANTING TREATMENT OF TUBERS, SOIL AND VEGETABLE POTATO PLANTS ON RESISTANCE TO RHIZOCTONIA

Authors

  • V. V. Gainatulina Kamchatka Research Institute of Agriculture – branch of the Federal Research Center All-Russian Institute of Plant Genetic Resources named after N.I. Vavilov
  • O. I. Khasbiullina Kamchatka Research Institute of Agriculture – branch of the Federal Research Center All-Russian Institute of Plant Genetic Resources named after N.I. Vavilov

DOI:

https://doi.org/10.7868/S3034519725060036

Keywords:

Kamchatka Krai, potatoes, fungicides, biological product-101, rhizoctonia, yield, biological efficiency, safety

Abstract

The results of studies on the effect of fungicides and the biological product HB-101 against Rhizoctonia solani in the Kamchatka Territory are presented. An integrated system of plant protection against diseases is effective with the inclusion of biological products and the ability to simultaneously increase plant resistance to diseases and abiotic stresses, as well as activate growth processes. The research has shown that a positive result in the fight against rhizoctonia was obtained by treating the soil with fungicides Uniform or Quadris and spraying plants with the biopreparation HB-101. The degree of rhizoctonia development was 3.1 and 2.9 %, the prevalence of the disease was 13.0 and 11.5 %, which is lower than the control without treatment by an average of 14.9 and 47.1 %, the damage to sprouts decreased by 1.7 %, tubers - 8.6 %. The biological efficiency of the preparations was 81.5 % versus 70.6 % when treated with fungicides only. The combined effect of the fungicides Uniform or Quadris on the soil and the biopreparation HB-101 on potato plants ensured the maximum yield increase compared to the control by 6.0 and 5.9 t/ga (25.4 and 25.0 %), the number of commercial tubers increased by 3.5 and 3.9%, the weight of commercial tuber - by 11.5 and 7.1 g, seed - by 5.6 and 3.1%, vitamin C - 0.63 and 5.20 mg%. When using the fungicides Uniform and Quadris, the preparation HB-101, the maximum preservation of tubers was 96.5 and 96.3 %, which is higher than the control by 13.8 and 13.6  %. The biological efficiency during storage averaged 83.4 %. The economic efficiency of using fungicides Uniform or Quadris and biological product HB-101 averaged 230.5 thousand rubles per hectare.

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Published

2026-01-22

Issue

Section

РАСТЕНИЕВОДСТВО И СЕЛЕКЦИЯ

How to Cite

Gainatulina, V. V., & Khasbiullina, O. I. (2026). EFFECT OF PRE-PLANTING TREATMENT OF TUBERS, SOIL AND VEGETABLE POTATO PLANTS ON RESISTANCE TO RHIZOCTONIA. Vestnik of the Russian Agricultural Science, 6, 17-22. https://doi.org/10.7868/S3034519725060036