The occurrence of strains resistant to leaf rust in certain varieties of wheat
1929
Johnston, C.O.
In studies on the reaction of varieties of wheat to leaf rust, P. triticina, p. f. 9, in the greenhouse at Manhattan, Kan., 28 out of about 200 varieties were found to contain resistant strains. With but few exceptions the resistant strains resembled the varieties from which they came in their general morphological characters. Some of them varied slightly from the parent varieties in one or more characters, such as kernel texture. Most of the varieties in which resistant strains were found are soft red winter wheats. These studies have shown that selection within varieties of wheat is a useful method of quickly securing strains which are resistant to a single physiologic form of leaf rust.
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