A. Kh. Sariev, K. V. Derbenev
Research Institute of Agriculture and Ecology of the Arctic – the branch of Federal Research Center “Krasnoyarsk Scientific Center of the SB of the RAS”, ul. Komsomol’skaya, 1, Noril’sk, Krasnoyarskii krai, 663301, Russian Federation
Abstract. The purpose of the investigation was to reveal the features of the approach of phenological phases of seeded perennial cereals under conditions of the forest-tundra zone of the southwest part of the Taimyr Peninsula at biological recultivation of technologically disturbed lands. The work was performed in 2013–2017. The experiment was laid out on the cryosolic peaty-gley soil. Fertilizers were applied annually in the dose of N60P60K60. The sowing of grasses was carried out on September 1–3, 2013, after mechanical tillage. The material for the research was lower and upper grasses. The lower grasses were meadow grass ‘Balin’ (Germany), red fescue grass ‘Reverent’(Germany); the upper grasses were wild rye ‘Guran’ (Russia), awnless brome ‘Kenonsky’ (Russia). The rate of seeding for all herbs was 100 kg/ha. The replication was four-fold. The area of the plot was 35.0 m2, the accounting area was 25.0 m2. The emergence of sprouts was noted in the second decade of June 2014. Lower grasses germinated first, upper grasses germinated in 1–4 days. In the first year of life, lower grasses were in the tillering phase till the end of vegetation, the upper ones reached the booting phase. In the second year of life, red fescue flowered, and meadow grass reached full ripeness. Wild rye and awnless brome (upper grasses) finished vegetation in the flowering phase. Since the third year of life, the full cycle of development was noted for all seeded grasses: 28–34% lower grasses reached the phase of full ripeness, in 2017 this value was 46–56%. Upper cereals during all the years of research remained in the flowering phase. The study of phenological phases in meadow grasses under conditions of the subarctic tundra made it possible to identify the differences in the timing of the onset of phenophases only in the first year of plant life; in 2015–2017 insignificant variations were noted. Despite severe conditions of growth, the studied herbs quickly adapt to local conditions and they can be recommended as recultivant of long use at biological recultivation of technologically disturbed lands.
Keywords: perennial cereals; phenological phases; vegetative period; seeds; vegetative reproduction.
Author Details: A.Kh. Sariev, Cand. Sc. (Agr.), senior research fellow (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); K.V. Derbenev, junior research fellow.
For citation: Sariev A.Kh., Derbenev K.V. Phenogenesis of Meadow Herbs at Biological Recultivation of Lands in the Yenisei North. Dostizheniya nauki i tekhniki APK. 2018. Vol. 32. No. 4. Pp. 38-40 (in Russ.). DOI: 10.24411/0235-2451-2018-10408.