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J. Martens, R. Mckenzie, G. Green (1970)
Gene-for-gene relationships in the Avena: Puccinia graminis host–parasite system in CanadaBotany, 48
H. Flor (1956)
The Complementary Genic Systems in Flax and Flax RustAdvances in Genetics, 8
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Multiline Cultivars as a Means of Disease ControlAnnual Review of Phytopathology, 7
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Genetics of Powdery MildewsAnnual Review of Phytopathology, 4
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Studies on the genetics of the host-parasite rela tionships in corn leaf rust
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Variation in the Smut FungiAnnual Review of Phytopathology, 6
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Host-parasite interaction in flax rust–its genetics and other implications
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The inheritance of resistance of Linum usitatissimum L. to the Australian Melampsora lini (Pers.) Lév. race complex., 85
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One of the most successful means of controlling plant diseases has been the development of varieties with major or vertical resistance genes. This type of resistance is easily manipulated in a breeding program and is efIec tive until strains of the pathogen to which it does not confer resistance be come established. Then, if another gene that conditions resistance to the new strains of the pathogen is available, this resistance gene may be incorporated into the variety by the plant breeder. In doing this, the breeder either con sciously or unconsciously is applying the principle of the gene-far-gene hypothesis. Plants resistant to races that are virulent on old varieties possess the new resistance gene. With the diseases of some crops, this process has becn repeated at relatively frequent intervals (4D, 42, 82). However, in some instances a single gene has conferred adequate resistance for many years 80,82). In plant diseases caused by living organisms, the same phenomena: in fection type in rusts, percent of infected plants in smuts of cereals, fleck or lesion in apple scab, are criteria of both the reaction of the host and the pathogenicity of the parasite. They indicate the relative resistance or susÂ
Annual Review of Phytopathology – Annual Reviews
Published: Sep 1, 1971
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