Characteristics of long-flax varieties of Institute of Agriculture of Carpathian Region of NAAS

Abstract

The characteristics of flax varieties (Linum usitatissimum L.) of domestic selection, the originator of which is the Institute of Agriculture of the Carpathian region of NAAS, are given. The State Register of Plant Varieties Suitable for Distribution in Ukraine for 2022 includes four varieties capable of providing high yields of straw, fiber and seeds: Oberig, Miandr, Kameniar, Zoria-87. In 2018 it was registered under the number of the National Catalog UF 0402016 at the Institute of Plant Breeding named after V. Ya. Yuriev, (NSC) National Center for Plant Genetic Resources of Ukraine Line LZU-2, recommended for cultivation in the Forest-Steppe zone of Ukraine. The created varieties are suitable for cultivation by intensive technologies with a seeding rate of 22-23 million germinated seeds / ha in commodity and 15-17 million germinated seeds / ha in seed crops on the background of mineral fertilizer N₃₀P₆₀K₉₀. The optimal standing density of flax plants is 18–20 million units / ha. Varieties are characterized by high resistance to lodging (4.7 points), shedding (5.0 points) and damage to major diseases such as anthracnose (Colletotrichum lini Bolley), fusarium wilt (Fusarium oxysporum v. Orthoceros lini), fusarium browning and twigs of the brush (Fusarium avenaceum (Fr.) Sacc). Seeds of long flax varieties are suitable for food, medical and technical purposes. Significant differences were established according to the results of research between structural, technological values and productivity indicators (seeds, flax straw and fibers), comparative assessment of identification morphological characteristics of plants promising varieties of long flax in the soil-climatic zone of the Western Forest-Steppe