Вредоносность нематоды пратиленха лугового — Pratylenchus pratensis (De Man, 1880) Filipjew, 1936 — на льне

Abstract

Studying the Nematoda fauna of flax in the fields of Zhitomir regional experiment agriculture station the mass affection was found of flax roots with Pratylenchus pratensis. Distribution of nematoda on four plots of flax, differing only in precursors, was not uniform. On the plots, infected more strongly, the plants lagged behind in growth. The back dependence was observed between the quantity of P. pratensis in і g of roots and weight of the flax plants under investigation. Yield of flax fibre from the more infected plots (22—38 individuals of Pr. pratensis in 1 g of roots) amounts to 70—80% of flax fibre from the less infected plots (7.3—13 individuals in 1 g of roots).