Author/Authors :
Zaluma, Astra Latvian State Forest Research Institute Silava, LATVIA , Zaluma, Astra Forest Sector Competence Center, LATVIA , Gailis, Arnis Latvian State Forest Research Institute Silava, LATVIA , Burnevica, Natâlija Latvian State Forest Research Institute Silava, LATVIA , Korhonen, Kari Natural Resources Institute Finland - Southern Unit, FINLAND , Gaitnieks, Tâlis Latvian State Forest Research Institute Silava, LATVIA , Gaitnieks, Tâlis Forest Sector Competence Center, LATVIA
Abstract :
Five-year-old Norway spruce and four-year-old Scots pine seedlings of various origin were inoculated with Heterobasidion annosum s.s. and H. parviporum to estimate whether the susceptibility of seedlings to Heterobasidion was affected by origin of seeds. In total, 520 spruce and 538 pine seedlings from different seed sources and provenance regions of Latvia were tested. Four months after inoculation the fungal growth was measured. The results highlight differences between development of H. annosum and H. parviporum in spruce and pine seedlings. We did not find any seed source that was more resistant than others.
Keywords :
pine , spruce , Heterobasidion root rot , resistance test
