An analysis of forest inventory data in Estonia, obtained at a 25-year interval, confirmed that on drained peatlands, the area of alder [Alnus] fens, transitional bogs and alder-birch [Betula] fens considerably decreased while that of swamps and Filipendula sites increased. The annual loss of peat...

According to the collected data, the fauna of Estonian bark beetles comprises 65 species, whereas the last added species has been Scolytus triarmatus. The finding of the species in Southern Estonia was concurrently the first one in the Baltic region. In Northern and Central Europe, this species has ...

Needle characteristics of Scots pines (Pinus sylvestris L.) in Tolkuse bog (SW Estonia) their length, dry weight and area are discussed. Samples of needles and peat were collected from seven small forest stands in Tolkuse bog in summer 2004. The sampling sites were selected from transect across the ...

The content of nutrients and length of Scots pine (Pinus sylvestris) needles and shoots, and the content of the photosynthetically active pigments of needles was studied on a dune at Tõotusmägi in southwest Estonia in a small but representative transect from the viewpoint of the nutritional...

The aim of the present research was to determine the effects of wood ash on podzols and on the growth of twenty-year-old Scots pines using the analytical comparative method. Wood ash application raised to some extent the pH of the top layer of the podzolic soil of the sample plots. Treatment with...

The contents of ascorbic acid and carotene in fruits of sea buckthorn (Hippophae rhamnoides), grown in different gardens (including the home garden of R. Pällin) in Estonia, was analysed during 2001-03. The content of ascorbic acid in sea buckthorn fruits grown in Estonia was relatively lower...

The first Estonian apple cultivars, Suislepp and Tallinna Pirnõun, were developed in the 18th century. In the 19th century, 2 further apple cultivars were produced. More tree and small fruit cultivars were bred in Estonia in the 20th century, mainly from the 1930s and 1940s onwards. The total...

To increase stand productivity by forest tree breeding methods it is indispensable to know the structure and growth of a stand. To attain maximum productivity it is necessary to know the optimal stand parameters of a single tree as a structural element of the stand. Further, certain demands can be...

A total of 195 spruce (Picea abies) grafts were studied in Pauska seed orchard in South-Estonia in 1988-1993 and also in 2004 to determine the duration of the effect of the fertilizer applications made in 1988. The descendants of 4 clones and 5 different treatments of fertilizers (N, P, K, NPK and...

The starch of conifers is an important storage of polysaccharide, the intermediate metabolism products of which are soluble glucans, maltodextrins. The seasonal dynamics of starch in conifers in temperate climates has been studied extensively, while maltodextrins have received relatively little...