Apple Breeding for Scab Resistance
DOI:
https://doi.org/10.71318/apom.1954.9.1.12Abstract
New apples similar in type to currently popular varieties but immune to apple scab ( Venturia inaequalis), would materially strengthen apple produGtion in the northeastern quarter of the U nit e d States and its fringe area, and in many other production areas of the world. Such varieties appear to be attainable. The basis for this statement is the progress made in the past seven years by the joint efforts of fruit breeders and pathologists to evaluate the resistance of Malusspecies of oriental origin, and hybridize them with commercial apple varieties. A substantial number of the flowering crabs introduced fifty or more years ago from Japan and China for ornamental purposes, contain one or more major genes which confer field immunity to the common apple scab strains occurring in the United States, Canada, Europe and Australia.
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