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PRELIMINARY EVIDENCE FOR SPECIFICITY BETWEEN FACTORS CONTROLLING LATENT
PERIOD IN WHEAT CULTIVARS AND BROWN RUST ISOLATES
ASLAM M; BURNEY K; MUNIR A
Abstract: Latent period was measured in number of days from inoculation to
flecking and sporulation in five bread wheat cultivars inoculated with
25 isolates of Puccinia recondita Rob. ex Desm. A differential
interaction between the cultivars and the parasite isolates indicated
the presence of genetic specificity between factors controlling latent
period in both the host and the parasite. Depending upon the host:
parasite combination. differences of one to two days were observed in
the latent period required by brown rust under the conditions of this
study.
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