Open AccessEffect of irradiation on the growth and rooting of a climbing rose in vitro
Author(s) -
Н П Кондратьева,
R Bolshin,
M. G. Krasnolutskaya,
A Baturin,
K. A. Baturina,
N Kirillin,
S Ovchucova,
Nadezhda Dukhtanova,
P. V. Zaitsev,
Е. Н. Сомова,
М. Г. Маркова
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/935/1/012007
Subject(s) - irradiation , relative humidity , rose (mathematics) , zoology , growth rate , horticulture , botany , materials science , chemistry , biology , mathematics , meteorology , physics , geometry , nuclear physics
The article presents the influence of pulsed and continuous irradiation (400…780 nm) on in vitro growth of the climbing rose variety “Camelot” at the illumination of 80±5 mmol/(m 2 s), temperature - 24±1 0 C, and the relative air humidity - 73±2%. It was found that the experimental led light (LED) pulsed phytoirradiator contributed to a significant increase in the leaf surface area during cultivation of climbing rose microstems in Gamborg’s nutrient medium, the average growth was 2.94 mm 2 compared to 2.80 mm 2 in the control. Pulse irradiation increases the reproducibility of climbing roses by 1.7 times, and also increases the rooting rate up to 96% compared to 82% in the control. Experimental LED phytoirradiator of continuous irradiation promoted an increase in the leaf surface area growth at the level of the control luminescent phytoirradiator, but also provided a significant increase in the reproduction factor and rooting rate of rose microstems. In the pulsed mode, phytoinstallations consume only 50% of the electricity compared to the continuous irradiation mode.