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The Impact of Different Environmental Conditions during Vegetative Propagation on Growth, Survival, and Biochemical Characteristics in Populus Hybrids in Clonal Field Trial

Lithuanian Research Centre for Agriculture and Forestry, Liepų St.1, Girionys, 53101 Kaunas, Lithuania
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Academic Editors: Marisa Domingos and Pierre Sicard
Forests 2021, 12(7), 892; https://doi.org/10.3390/f12070892
Received: 10 June 2021 / Revised: 2 July 2021 / Accepted: 4 July 2021 / Published: 8 July 2021
To have a cleaner environment, good well-being, and improve the health of citizens it is necessary to expand green urban and suburban areas using productive and adapted material of tree species. The quality of urban greenery, resistance to negative climate change factors and pollution, as well as efficiency of short-rotation forestry in suburban areas, depends primarily on the selection of hybrids and clones, suitable for the local environmental conditions. We postulate that ecogenetic response, phenotypic plasticity, and genotypic variation of hybrid poplars (Populus L.) grown in plantations are affected not only by the peculiarities of hybrids and clones, but also by environmental conditions of their vegetative propagation. The aim of the present study was to estimate growth and biochemical responses, the phenotypic plasticity, genotypic variation of adaptive traits, and genetically regulated adaptability of Populus hybrids in field trials which may be predisposed by the simulated contrasting temperature conditions at their vegetative propagation phase. The research was performed with the 20 cultivars and experimental clones of one intraspecific cross and four different interspecific hybrids of poplars propagated under six contrasting temperature regimes in phytotron. The results suggest that certain environmental conditions during vegetative propagation not only have a short-term effect on tree viability and growth, but also can help to adapt to climate change conditions and grow successfully in the long-term. It was found that tree growth and biochemical traits (the chlorophyll A and B, pigments content and the chlorophyll A/B ratio) of hybrid poplar clones grown in field trials, as well as their traits’ genetic parameters, were affected by the rooting-growing conditions during vegetative propagation phase. Hybrids P. balsamifera × P. trichocarpa, and P. trichocarpa × P. trichocarpa have shown the most substantial changes of biochemical traits across vegetative propagation treatments in field trial. Rooting-growing conditions during vegetative propagation had also an impact on coefficients of genotypic variation and heritability in hybrid poplar clones when grown in field trials. View Full-Text
Keywords: Populus; climate change; plant response; hybrids; phenotypic plasticity; genetic variation; urban greens Populus; climate change; plant response; hybrids; phenotypic plasticity; genetic variation; urban greens
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MDPI and ACS Style

Gudynaitė-Franckevičienė, V.; Pliūra, A. The Impact of Different Environmental Conditions during Vegetative Propagation on Growth, Survival, and Biochemical Characteristics in Populus Hybrids in Clonal Field Trial. Forests 2021, 12, 892. https://doi.org/10.3390/f12070892

AMA Style

Gudynaitė-Franckevičienė V, Pliūra A. The Impact of Different Environmental Conditions during Vegetative Propagation on Growth, Survival, and Biochemical Characteristics in Populus Hybrids in Clonal Field Trial. Forests. 2021; 12(7):892. https://doi.org/10.3390/f12070892

Chicago/Turabian Style

Gudynaitė-Franckevičienė, Valda, and Alfas Pliūra. 2021. "The Impact of Different Environmental Conditions during Vegetative Propagation on Growth, Survival, and Biochemical Characteristics in Populus Hybrids in Clonal Field Trial" Forests 12, no. 7: 892. https://doi.org/10.3390/f12070892

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