Growth and condition of pine plantations, created by the planting material grown using plant growth regulators
Journal Title: Лісівництво і агролісомеліорація - Year 2015, Vol 127, Issue
Abstract
Peculiarities of diameter, height and condition dynamics of pine plantations created by planting material, which was grown using plant growth regulators (PGRs) were studied. Use of PGRs for Scots pine seeds treatment promoted good plant survival and growth in plantations during the early years. However, the growth of plantations also depended on external factors. Aftereffect of Scots pine seeds treatment continues in the early years of plantation growing and is manifested in the higher values of survival, height and condition of plants vs. control. There were no significant differences by these parameters between the variants with use different PGRs and their concentrations at seed treatment. In the year of transfer to the forest covered lands the plantations created with planting material, which was grown using PGRs, were evaluated as the 1st quality class, and control plantations were evaluated as 2nd quality class. The existence of reliable high positive correlation of pine plantation height growth in 2011–2015 with June air temperature and negative correlation with May and June precipitation, as well as with their sum are proved.
Authors and Affiliations
Yu. Taranenko
Keywords
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