L.D. Urazova, O.V. Litvinchuk
Siberian Research Institute of Agriculture and Peat – the branch of the Siberian Federal Agrobiotechnology Research Center of the Russian Academy of Sciences, ul. Gagarina, 3, Tomsk, 634050, Russian Federation
Abstract. The study was aimed at investigation of collection samples of Festuca pratensis in the taiga zone of Western Siberia for further use in breeding. The experimental work was carried out in the Narym Department of Breeding and Seed Production, Siberian Research Institute of Agriculture and Peat, Branch of the Siberian Federal Agrobiotechnology Research Center, Russian Academy of Sciences, in 2006–2012. The climate of the area under study is continental, with significant seasonal variability. The average annual air temperature is negative. Annual precipitation varies between 450 and 590 mm, including more than 300 mm during the growing season. The frost-free period lasts from 70 to 90 days, but can be as short as 30 days in some years. The soils of the experimental plots are sod-podzolic, sandy-loamy, with the humus content in the plowing horizon of not more than 2 %. We studied 294 samples of Festuca pratensis: 38 varieties of Russian selection, 23 ones of foreign origin, 233 samples were wild-growing forms from the European part of Russia, Western and Eastern Siberia. Nurseries were set up in special breeding and seed production crop rotations. The field experiments were conducted using the generally accepted cultivation technique for grasses in Western Siberia. Monitoring and record of the results were subjected to the guidelines for selection of perennial grasses of the N.I. Vavilov All-Russian Research Institute of Plant Industry and V.R. Williams All-Russian Fodder Research Institute. The economic evaluation was carried out in terms of several parameters: height, tillering capacity, leaf coverage, and winter hardiness. In terms of economically important parameters, valuable source materials were selected for breeding of Festuca pratensis to be used under conditions of the taiga zone of Tomsk region. These are Severodvinskaya 130, Sujdinskaya, Raduga; wild-growing samples from Tomsk region (К-2947, 5057, 5088, 5095, 5180, 5185). These varieties are tall (112–123 cm); with a tillering capacity of 170–300 shoots per plant; with leaf coverage from 69.5 to 74.7 %; with one hundred percent winter hardiness.
Keywords: Festuca pratensis, plant height, tillering capacity, leaf coverage, winter hardiness, collection nursery.
Author Details: Urazova L.D., Cand. Sc. (Agr.), senior research fellow (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); Litvinchuk O.V., Cand. Sc. (Agr.), senior research fellow.
For citation: Urazova L.D., Litvinchuk O.V. Evaluation Elements of Collection Samples of Festuca pratensis under Conditions of Taiga Zone of Tomsk Region. Dostizheniya nauki i tekhniki APK. 2017. V. 31. No. 5. Pp. 36-39 (in Russ.).