THE OCCURRENCE OF LOOSE SMUT OF BARLEY ON COMMERCIALLY GROWN CULTIVARS POSSESSING GENES FOR RESISTANCE FROM JET

1 July 1974

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

Vol. 54 (3) , 453-456
https://doi.org/10.4141/cjps74-076

Abstract

Three collections of loose smut, Ustilago nuda (Jens.) Rostr., from Manitoba and and Saskatchewan were virulent on commercial cultivars of barley (Hordeum vulgare L.) derived from Jet (C.I. 967): Bonanza (C.I. 14003), Conquest (C.I. 11638), Keystone (C.I. 10877), and Paragon (C.I. 13649). These cultivars were previously resistant to all races in North America. The virulence pattern of one of the cultures indicates that the genes Un and Un8 confer resistance and that the genes Un and Un3 are separate.

Keywords

BARLEY
LOOSE SMUT
C.I
CULTIVARS
MANITOBA
PARAGON
GENES FOR RESISTANCE

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