Growth Status of Scots Pine Artificial Stands Under the Influence of para–Aminobenzoic Acid
V. P. IVANOV1, S. I. MARCHENKO1, D. I. NARTOV1, YU. V. IVANOV2
1Bryansk State Technological Academy of Engineering, 241037, Bryansk, Stanke Dimitrova str., 3
2K. A. Timiryazev Institute of Plant Physiology RAS, 127276, Moscow, Botanicheskaya str., 35
Keywords: Pinus sylvestris, seedlings, stimulating effect, accelerated growth, tree branchiness
Abstract
The article summarizes 27 years of observations on the growth status of Scots pine artificial stands, established after single seed treatment with para-aminobenzoic acid (concentration range: 3.7–18.2 mM). Long–term stimulating effect of PABA on artificial stands’ height growth (up to 47 %) and diameter (up to 42 %) was discovered. By the age of 27 years, self–pruning of the artificial stands increased by 18 %. The possible mechanisms of long-term PABA physiological effect are now being discussed.
DOI: http://dx.doi.org/10.1134/S1995425515010059
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