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Silva Fennica 1926-1997
Acta Forestalia Fennica

Articles containing the keyword 'Calluna vulgaris'

Category: Article

article id 5157, category Article
Eino Mälkönen, Vesa Aro-Heinilä, Seppo Kellomäki. (1982). Lannoituksen ja kastelun vaikutus männikön pintakasvillisuuteen. Silva Fennica vol. 16 no. 1 article id 5157.
English title: Effect of fertilization and irrigation on the ground vegetation of a Scots pine stand.
Original keywords: mänty; lannoitus; kastelu; aluskasvillisuus; peittävyys; heinät; varvut; kanerva
English keywords: Pinus sylvestris; fertilization; irrigation; Scots pine; ground vegetation; dwarf shrubs; grasses; Calluna vulgaris
Abstract | View details | Full text in PDF | Author Info

A mature Scots pine (Pinus sylvestris L.) stand growing on a site of the Vaccinium type in Southern Finland was fertilized with nitrogen-rich NPK fertilizer at a level of 150 kg pure nitrogen per hectare. The sample plots were also irrigated during four growing seasons. The total amount of irrigation during this period was 1,200 mm. Fertilization alone increased the coverage of grasses and dwarf shrubs. The culmination of the increase occurred during the second growing season after the start of the treatment. The rapid effect of irrigation on the coverage of ground vegetation was not so strong as that of fertilization. It was concluded on the basis of the developed growth model that the coverage of dwarf shrubs, especially Calluna vulgaris, was, however, increased with the fertilization treatment for a prolonged period. Fertilization and irrigation had no visible effect on the coverage of lichens and mosses.

The PDF includes a summary in Finnish.

  • Mälkönen, E-mail: em@mm.unknown (email)
  • Aro-Heinilä, E-mail: va@mm.unknown
  • Kellomäki, E-mail: sk@mm.unknown

Category: Article

article id 7612, category Article
Timo Kurkela. (1969). Antagonism of healthy and diseased Ericaceous plants to snow blight on Scots pine. Acta Forestalia Fennica vol. 0 no. 101 article id 7612.
Keywords: Pinus sylvestris; antagonism; Scots pine; Vaccinium vitis-idaea; pathogens; Calluna vulgaris; control; snow blight; Phacidium infestans; ericaceous evergreens
Abstract | View details | Full text in PDF | Author Info

Two experiments were conducted in Punkaharju and Leivonmäki in the Central Finland in 1966-67 where the spread of the snow blight caused by Phacidium infestans Karst. was investigated in rows of excised branches from a ten-year-old stand of Scots pine (Pinus sylvestris L.). Ericaceous plants (Calluna vulgaris (L.) Hull and Vaccinium vitis-idaea L.) infected with snow moulds were used to determine their influence on the spread of snow blight.

The results show that significant inhibition of snow blight in Scots pine can be achieved with foliage of ericaceous evergreens. The mechanism of this inhibition is an object of conjecture. In healthy ericaceous vegetation it might be caused by saprophytic fungi living on surface of plants or by some constituent of the foliage. In the case of dead ericaceous foliage, the cause of inhibition seems to be the antagonism of other snow moulds. The antagonism of certain saprophytic organism is well known.

The observed inhibition suggests that ericaceous vegetation may be helpful for reforestation by offering a natural control of snow blight, when seedlings of Scots pine do not stand above the surrounding vegetation.

The PDF includes a summary in Finnish.

  • Kurkela, E-mail: tk@mm.unknown (email)

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