Journal
NEW ZEALAND JOURNAL OF CROP AND HORTICULTURAL SCIENCE
Volume 29, Issue 4, Pages 255-265Publisher
SIR PUBLISHING
DOI: 10.1080/01140671.2001.9514187
Keywords
Malus; apple cultivars; apple indicator cultivars; russet ring disease; leaf chlorosis symptom; genetic mutation
Categories
Ask authors/readers for more resources
In an evaluation in New Zealand of four Canadian apple (Malus domestica Borkh.) cultivars used as indicators for the russet ring and leaf pucker group of diseases, 'Jubilee' and 'Yellow Newtown' proved to be the most sensitive to the diseases present in New Zealand, with 'Blaxstayman' being almost as sensitive. A leaf chlorosis, and fruit russet and distortion condition of 'Fuji' apple was shown to be graft-transmissible and probably caused by a virus. The conditions causing leaf malformation and a streaked fruit russet of 'Braeburn', and a bumpy russet of 'Royal Gala' appear to be caused by genetic mutations. Of three red-skinned sports of 'Braeburn', bud-inoculated with type B russet ring, only 'Braestar' produced fruit symptoms, several seasons after bud inoculation. A test of some selected apple rootstocks from commercial nurseries indicated that they were free from type B russet ring.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available