Benomyl에 저항성인 사과 겹무늬썩음병균의 교차 및 이중저항성

Cross- and Double-Resistance of Benomyl-Resistant Botryosphaeria dothidea

  • 이창은 (영남대학교 농축산대학 원예학과) ;
  • 박석희 (영남대학교 농축산대학 원예학과)
  • 발행 : 1994.08.01

초록

Mycelial growth resistant isolates of Botryosphaeria dothidea to benomyl showed 99~79% spore germination on the PSA media supplemented with 200~2,100 $\mu\textrm{g}$/ml of carbendazim and thiophanate-methyl to manifest the high cross-resistance in spore germination. Mycelial growth, 23~9 mm in colony diameter, also manifested the high cross-resistance of mycelial growth together with similarity of spore forming cross-resistance. Benomyl resistant isolates BR1, BR2 and BR3, grew 23~10 mm in colony diameter at 330~3,000 $\mu\textrm{g}$/ml of captafol, captan and oxine-copper showing the high double resistance of mycelial growth and spore formation with minor difference. However, within concentration range of the 3 fungicides tested, germinations of all the tested isolates were completely suppressed to show no double-resistance in the fungal spore germination.

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