from 01.01.2018 to 01.01.2019 Voronezh, Russian Federation
UDC 579.64
The paper addresses a relevant task in nursery management — finding effective and economical growth stimulants for tree seedlings. an experimental preparation for foliar feeding was obtained based on enzymatic hydrolysate of sunflower meal using the actinomycete strain Streptomyces sp. AC-1324 (VKPM). To determine the biological activity of the preparation, an algorithmic approach based on the dichotomy method (binary search) was applied instead of traditional empirical dose selection. A range of concentrations obtained by sequential 2-fold dilution was investigated. It was established that the optimal concentration providing the maximum growth-stimulating effect is 3.125 %. The concentration of 6.25 % also showed effectiveness but is less economically feasible. The proposed method allows accelerating the introduction of innovative biological preparations into reforestation practice.
forest nurseries, actinomycetes, meal hydrolysis, dichotomy method, binary search, amino acid fertilizers, seedlings
1. Bryndina, L. V. Aminokislotnyy biostimulyator rasteniy na osnove rastitel'nogo syr'ya dlya primeneniya v dekorativnom cvetovodstve / L. V. Bryndina, I. M. Gordienko, T. V. Gordienko // Ohrana, innovacionnoe vosstanovlenie i ustoychivoe upravlenie lesami. Forestry - 2023: materialy Mezhdunarodnogo lesnogo foruma. – Voronezh, 2023. – S. 401-410. DOI: https://doi.org/10.58168/Forestry2023_401-410; EDN: https://elibrary.ru/XVMYUQ
2. Tret'yakov, N. N. Praktikum po fiziologii rasteniy / N. N. Tret'yakov, T. V. Karnauhova, L. A. Panichkin. – 3-e izd., pererab. i dop. – M. : Agropromizdat, 1990. – 271 s. EDN: https://elibrary.ru/WCUGTZ
3. Smith J. Actinomycetes in plant growth promotion. Journal of Applied Microbiology, 2022; 15.
4. Olanrewaju O.S., Babalola O.O. Streptomyces: implications and interactions in plant growth promotion. Applied Microbiology and Biotechnology, 2019; 103(3). DOI: // https://doi.org/10.1007/s00253-018-09577-y EDN: https://elibrary.ru/HGHMZF
5. Biostimulyatory v rastenievodstve: razdelenie na kategorii i mehanizmy deystviya / O. I. Yahin, A. A. Lubyanov, I. A. Yahin, P. H. Braun // Agrohimiya, 2017. – № 6. – S. 83–92.
