Fungus diseases of cultivated arctic bramble (Rubus arcticus L.) in Finland

• Published in: Agricultural and Food Science
• Main Author: Ruokola, Anna-Liisa
• Format: Article in Journal/Newspaper
• Language: English
• Published: The Scientific Agricultural Society of Finland 1981
• Subjects: Arctic
• Online Access: https://journal.fi/afs/article/view/72059; https://doi.org/10.23986/afsci.72059

During 1975 and 1977—1979 studies were carried out on the fungus diseases of experimentally cultivated arctic bramble (Rubus arcticus L.). The most common pathogenic or weakly pathogenic fungi isolated from the diseased clones were Cylindrocarpon destructans (Zins.) Scholten and Fusarium avenaceum (Cda ex Fr.) Sacc. Some other Fusarium species and Botrytis cinerea Pers. ex Fr. were rather uncommon. Didymella applanata (Niessl) Sacc. and plenty of pycnidia of Phoma spp. were established on nearly withered clones; among the isolates were P. exigua Desm. var. exigua Maas, Phoma spp. and Coniotbyrium fuckelii Sacc. (con. st. of Leptosphaeria coniotbyrium (Fuck.) Sacc.). Isolates of little significance were identified in the whole from 26 fungal genera. Vuosina 1975 ja 1977—1979 suoritettiin tutkimuksia koeviljellyssä mesimarjassa (Rubus arcticus L.) esiintyvistä sienitaudeista. Lievästi lakastumis- tai tyvitautisista klooneista eristetyistä sienipatogeeneista olivat yleisimmät Cylindrocarpon destructans (Zins.) Scholten ja Fusarium avenaceum (Cda ex Fr.) Sacc. Eräät muut Fusarium-lajit sekä Botrytis cinerea Pers. ex Fr. olivat harvinaisia. Lähes kuihtuneissa klooneissa todettiin Didymella applanata (Niessl) Sacc. sekä runsaasti Phoma-sienen pyknidioita; isolaattien joukossa oli P. exigua Desm. var. exigua Maas, Phoma spp. sacc. sekä Coniotbyrium fuckelii (perf. a. Leptospbaeria coniotbyrium (Fuck.) Sacc.). Lisäksi eristettiin sieniä, kaikkiaan 26 eri sienisukuun kuuluvia, joiden merkitys ilmeisesti jäi vähäiseksi.