Journal of Siberian Federal University. Biology / Radial Growth of Siberian Pine Heterografts (Pinaceae) in Krasnoyarsk Forest-Steppe

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Issue
Journal of Siberian Federal University. Biology. 2013 6 (1)
Authors
Darikova, Yulia A.; Vaganov, Eugene A.; Kuznetsova, Galina V.; Grachev, Alexi M.
Contact information
Darikova, Yulia A.: Siberian Federal University, 79 Svobodny, Krasnoyarsk, 660041 Russia; e-mail: ; Vaganov, Eugene A.: Siberian Federal University, 79 Svobodny, Krasnoyarsk, 660041 Russia;; Kuznetsova, Galina V.: V.N. Sukachev Institute of Forest of the Siberian Branch of the Russian Academy of Sciences, 50/28 Akademgorodok, Krasnoyarsk, 660036 Russia;; Grachev, Alexi M.: Siberian Federal University, 79 Svobodny, Krasnoyarsk, 660041 Russia;
Keywords
scion; rootstock; Pinus sibirica; Pinus cembra; Pinus sylvestris; tree ring width; climatic signal
Abstract

Analysis of the radial growth and of the climatic response of heterografts of Siberian pine (Pinus sibirica Du Tour) and Swiss pine (Pinus cembra L.) from three provenances was conducted. In all of the cases the rootstock was Scots pine (Pinus sylvestris L.). Radial growth of the grafts of Siberian pine was 23 % higher than for Swiss pine due to species peculiarities. The radial increment of the rootstock of Scots pine depends on the type of scion: the diameter growth of P. sylvestris (rootstock for Siberian pine) is greater than for the control trees by 20 % for the Surgut provenance and by 15 % for the Emelianovo provenance, whereas the diameter growth of Scots pine (rootstock for Swiss pine) is 10 % less than for the control stand (ungrafted trees). This can be considered to be a result of the scion influence. Analysis of climatic response of scion and rootstock shows that their reaction to air temperature is identical to the reaction of the control trees (positive correlation with April temperature). However, when the component representing the climatic reaction of the control trees is subtracted out, other results are obtained: the climatic response is absent for the rootstocks, whereas the indexes of the growth of scion are positively correlated with the temperature of autumn period and negatively correlated with the temperature of April-May.

Pages
3-17
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/9694

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