Порівняльна оцінка продуктивності селекційних номерів багаторічних злакових трав / Comparative evaluation of the productivity of breeding numbers of perennial cereal grasses
Journal Title: Вісник Львівського національного аграрного університету. Агрономія - Year 2018, Vol 22, Issue
Abstract
Among perennial cereal grasses the most widespread in Carpathians and Peredkarpattya are perennial ryegrass and timothy. Successful introduction them into production is possible only at presence of highly productive, adapted to the conditions of cultivation varieties. Therefor plant breeding plays an important role. The results of study on the productivity of breeding numbers of perennial ryegrass and timothy in the conditions of Peredkarpattya are presented in this article. The characteristic of the studied breeding numbers on the main economically valuable indicators are given. The feed and seed productivity were determined. Spring regrowth of perennial ryegrass plants in 2016–2017 was observed 17,03 – 29,03. By duration of vegetation period all variety samples of perennial ryegrass were divided into three groups: early (101–105 days), medium (106–110 days), late (111–115 days). In the collection nursery of perennial ryegrass 13 breeding numbers were studied. By green mass productivity all variety samples (except № 1114) exceeded the standard on 0,5–0,8 t/he, and by the productivity of dry matter less productive were № 1114 and № 907. By plant height during pasture way of use № 1089 – 24,7 cm was distinguished. A correlation analysis was conducted between the indicators of seed productivity of Osyp variety, № 616, № 907. It has been established that there are positive correlation relations between the indicators of seed productivity. In the competitive variety testing of timothy 4 breeding numbers were studied. The yield of green mass during hay way of use was 39,63–47,53 t/he, dry matter 8,36–10,44 t/he. The highest feed productivity had № 900. The yield of green mass during pasture way of use was 23,54–24,26 t/he, dry matter 2,49–2,54 t/he. The highest feed productivity had № 1316. The highest seed productivity had № 1316 – 0,374 t/he. According to the results of chemical analyzes the same breeding number (№ 1316) had the best protein, fat, cellulose and ash content.
Authors and Affiliations
G. Konyk, R. Ivantsiv, D. Garmych
Keywords
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