Determination of harmful biota of fiber flax seeds obtained in the main flaxsowing zones of Belarus

Abstract

The paper presents an analysis of the seed material of fi fl harvested in 2018-2020 from nine flax-growing farms belonging to three agro-climatic zones of Belarus. A strong direct correlation between the development of fungal infections and bacteriosis of fl seeds and the amount of precipitation during the growing season (r = 0,93 and 0,70) and infection of plants with diseases by harvest (r = 0,91 and 0,71 respectively) was established. The laboratory germination of seeds had a strong reverse effect of bacteriosis of seeds (r = −0,74), the average – septoria of plants before harvesting (r = −0,58) and precipitation in the second half of the growing season (r = −0,60). The average indicators of hydrothermal factors of the flax-growing zones did not determine the general trend in the development of harmful seed biota.