GENETIC CHANGES IN APPLES INDUCED BY THERMAL NEUTRONS

1 January 1957

journal article
Published by Canadian Science Publishing in Canadian Journal of Plant Science

Vol. 37 (1) , 55-58
https://doi.org/10.4141/cjps57-006

Abstract

Sectorial colour changes in Cortland apples showed a marked increase over controls following irradiation of the dormant scions with 2–8 hours' exposure to thermal neutrons. This type of atomic radiation appeared to be much more effective than were x-rays in producing gene mutations. Both sectorial and complete colour sports were found, the latter being very dark red and readily distinguishable from the colour of the normal Cortland. About 5 hours' exposure with a thermal neutron dosage of about 13 × 10¹²neutrons per cm²appeared to be the optimum treatment for this apple variety.

Keywords

THERMAL NEUTRONS
APPLE
TREATMENT
CORTLAND
SECTORIAL
COLOUR
SUP
RAYS

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