employee from 01.01.1993 to 01.01.2025
Krasnoyarsk State Agrarian University (plant growing, selection and seed production, Associate Professor)
employee
VAK Russia 4.1.1
VAK Russia 4.1.2
VAK Russia 4.1.3
VAK Russia 4.1.4
VAK Russia 4.1.5
VAK Russia 4.2.1
VAK Russia 4.2.2
VAK Russia 4.2.3
VAK Russia 4.2.4
VAK Russia 4.2.5
VAK Russia 4.3.3
VAK Russia 4.3.5
UDC 634.74
UDC 631.8
The aim of this study was to investigate the effect of treating green cuttings with a phytohormone and biogenic ferrihydrite nanoparticles on the development of marketable male sea buckthorn seedlings in the Krasnoyarsk forest-steppe. The experiments were conducted from 2018 to 2023 at the Garden Center of the Agrarian University. The study subject was the pollinator variety of sea buckthorn, 'Aley.' Propagation was carried out using green cuttings, with cuttings harvested in the first ten days of July. To enhance root formation, the cuttings were exposed for 12 hours to a solution of indole-3-acetic acid (IAA) (control) and IAA supplemented with six modifications of biogenic ferrihydrite (Feh) nanoparticles: pure and doped with aluminum (Feh_Al), cobalt (Feh_Co), silicon (Feh_Si), molybdenum (Feh_Mo), and manganese (Feh_Mn). The prepared cuttings were planted in a greenhouse. The following spring, root development parameters were recorded for the rooted cuttings, including the size of the rooting zone, the number of first-order roots, and their total length. They were then planted in open ground for further growth. In the fall, the dug-up seedlings were divided into first and second commercial grades, and non-standard varieties. On average, during the research period, the marketability of seedlings in the variant with the treatment of cuttings with IAA was 88.9 %. Treatment of cuttings with solutions of IAA + Feh_Co, IAA + Feh_Si, IAA + Feh_Mo, IAA + Feh, IAA + Feh_Mn contributed to an increase in the marketability of planting material by 8.0; 6.6; 5.1; 4.4 and 3.8 % respectively. The contribution of the "root formation stimulator" factor to the formation of seedlings of the 1st commercial variety was 18.0 %, and of the 2nd commercial variety – 10.9 %. The main influence was exerted by vegetation conditions: 67.4 % for the 1st variety and 62.5 % for the 2nd variety. The matrix of paired coefficients shows a very high positive relationship between the indicators “total length of roots of the 1st order of branching” in rooted cuttings and “marketability of seedlings” (r = 0.971).
nursery, sea buckthorn, growth stimulator, nanoparticles, biogenic ferrihydrite, seedlings, marketability, correlation
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