The Influence of Autumn Transplanting Date on the Dry Matter Content, Needle Retention Values and Root Regeneration of Scots Pine (Pinus sylvestris L.) Seedlings

1989

S. 225-232

5 Abb., 1 Tab., 25 Lit. Ang.

Unselbständiges Werk

200040689

The experiments were performed in 1982-1985 at the forest tree nursery in Suonenjoki, Central Finland. There were four to five transplanting dates ranging from the beginning of August to the end of September. The dry matter content, root regeneration and needle retention value were examined. The development of the needle retention value in autumn was followed in four nurseries at Suonenjoki, Rantasalmi, Maentharju and Taavetti in 1982. Root regeneration was usually the worse, the later the seedlings were transplanted in the autumn. The dry matter content was generally lowest in the seedlings transplanted later in the autumn, and also to some extent in the seedlings transplanted at the beginning of August. The needle retention value increased as autumn advanced. Early transplanting in autumn had an adverse effect on the development of needle retention, and the values were highest in the seedlings transplanted later in the autumn.