Variation in growth of Heterobasidion parviporum in a full-sib family of Picea abies

摘要: Abstract Heterobasidion parviporum (Fr.) Niemela & Korhonen and annosum Bref. sensu lato are some of the major forest pathogens in northern hemisphere causing root butt rot to conifers. The relative susceptibility H. was investigated a full-sib family Norway spruce [Picea abies (L.) Karst.] by inoculating set 252 cloned progenies from controlled cross. Four ramets each progeny were used 2-year-old rooted cuttings incubated for 6 weeks under greenhouse conditions. condition assessed visually all plants excellent vigour with no mortality recorded during experiment. To score susceptibility, lesion length inner bark fungal growth sapwood measured. Among progenies, significant differences found (p<0.0005). There difference length; however, there positive correlation betwee...