Clonal micropropagation of downy birch (Betula pubescens) with the use of copper oxide and silver nanoparticles

2020 ◽  
Vol 1 (86) ◽  
pp. 54-59
Author(s):  
Petr Evlakov ◽  
◽  
Olga Fedorova ◽  
Tatiana Grodetskaia ◽  
◽  
...  
2020 ◽  
Vol 15 (7-8) ◽  
pp. 476-482
Author(s):  
P. M. Evlakov ◽  
O. A. Fedorova ◽  
T. A. Grodetskaya ◽  
O. V. Zakharova ◽  
A. A. Gusev ◽  
...  

2021 ◽  
Vol 875 (1) ◽  
pp. 012048
Author(s):  
O Fedorova ◽  
T Grodetskaya ◽  
N Evtushenko ◽  
P Evlakov ◽  
A Gusev ◽  
...  

Abstract The article substantiates the necessity of studying behaviour of copper oxide and silver nanoparticles on forest cultures (downy birch 29-58 (Betula pubescens Ehrh.) and poplar ‘Pyramidal-osokoreviy Kamyshinsky’ (Poplus pyramidalis Roz. x Poplus nigra L.) in in vitro as well as in ‘soil-plant-microbiota’ to ensure stability of forest cultures in forest regeneration. The impact of nanoparticles on shoot regeneration and propagation processes was evaluated by introducing nanoparticles into Woody Plant medium. Differences in the influence of nanoparticles on the life processes of plants depending on their concentration and the stage of clonal micropropagation have been established. The results are demonstrated by a 15-25% reduction in the frequency of infection of poplar and birch explants as well as by an increase in their regenerating potential at the stage of introduction in tissue culture. When the nanoparticle solution is used in the soil substrate, a decrease in the number of diseased plants and an increase in their survival rate of 30% can be observed. The inhibitory effect of silver nanoparticles on some ecological and trophic groups of microorganisms has been established. These results can be used in the application of CuO and Ag nanoparticles in the biotechnology of clonal micropropagation of forest crops.


2021 ◽  
Vol 16 (2) ◽  
pp. 231-238
Author(s):  
T. A. Grodetskaia ◽  
O. A. Fedorova ◽  
P. M. Evlakov ◽  
O. Yu. Baranov ◽  
O. V. Zakharova ◽  
...  

2018 ◽  
Vol 15 ◽  
pp. 28-44
Author(s):  
Dhirendar Kumar Pradhan ◽  
Christine Cahalan ◽  
Sunita Ulak

Climate is one of the major factors that govern the distribution of tree species. Climate change has already affected the growth, structure and distribution of trees and woodlands. Global climate change projections are wetter winters, drier summers and significance changes in temperature regimes in the next few decades. The main objective of this study was to experimentally demonstrate the effects of decline in summer rainfall, as predicted by UKCP09/IPCC, on height and diameter growth in two co-occurring silver birch (Betula pendula Roth) and downy birch (Betula pubescens Ehrh) and provide further understanding of the changes in growth and development in response to a decrease in water availability. One-year-old seedlings were grown in a temperature-controlled greenhouse for eight weeks in a split-plot experimental design. Their height and diameter were measured and analyzed. Result showed that plant height and diameter was significantly reduced with increased water stress. B. pendula showed higher physiological traits indicating that this species can perform better than B. pubescensin water-deficit conditions.


Silva Fennica ◽  
2012 ◽  
Vol 46 (1) ◽  
Author(s):  
Pentti Niemistö ◽  
Heikki Korpunen ◽  
Ari Laurén ◽  
Marika Salomäki ◽  
Jori Uusitalo

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