台木用イチジク品種‘Zidi’および‘King’のイチジク株枯病に対する抵抗性

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タイトル別名
  • Degree of resistance to Ceratocystis Canker by Ceratocystis fimbriata in Fig Varieties ‘Zidi’ and ‘King’
  • 台木用イチジク'Zidi'及び'King'のイチジク株枯病に対する抵抗性の強度
  • ダイギヨウ イチジク Zidi オヨビ King ノ イチジク カブガレビョウ ニ タイスル テイコウセイ ノ キョウド

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説明

The degree of resistance to ceratocystis canker (caused by Ceratocystis fimbriata Ellis et Halsted) in fig (Ficus carica L.) varieties ‘Zidi’ and ‘King’, which had been selected as vigorating rootstock, were compared with resistant variety ‘Celeste’ (‘Malta’ sensu Condit, 1995) and sensitive variety ‘Masui Dauphine’ (‘San Piero’ sensu Condit, 1955). 1. The leaf discs of each tested variety were inoculated with C. fimbriata by wounding. The lesions spread from inoculated points rapidly in ‘King’ and ‘Masui Dauphine’, moderately in ‘Zidi’ and slowly in ‘Celeste.’ 2. The suspension of C. fimbriata was injected to the pot soils growing nurseries of each tested variety. The lesions appeared and C. fimbriata was reisolated from the nurseries of every variety. The mortalities for 90 days of inoculated nurseries were higher in ‘King’ (89%), ‘Zidi’ (64%) and ‘Masui Dauphine’ (62%), and lower in ‘Celeste’ (6%). These results suggested that the degree of resistance to ceratocystis canker was lower in vigor fig varieties ‘Zidi’ and ‘King.’

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