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Linkage Relationship of Genes Conditioning Resistance to Leaf Rust and Powdery Mildew in Franger Barley 1
Author(s) -
Moseman J. G.,
Reid David A.
Publication year - 1961
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1961.0011183x000100060012x
Subject(s) - powdery mildew , biology , linkage (software) , mildew , division (mathematics) , resistance (ecology) , stripe rust , crop , library science , horticulture , plant disease resistance , agronomy , genetics , gene , computer science , arithmetic , mathematics
A program was begun in 1950 to locate winter barley varieties resistant to leaf rust and powdery mildew. That fall the world collection of barley maintained by the U. S. Department of Agriculture, consisting of 6270 entries, was sown in the field at Raleigh, North Carolina. The entries also were tested in the seedling stage in the greenhouse for their reaction to a composite of cultures of races 3, 4, and 13 of powdery mildew. The reaction of the varieties resistant to infection with the composite of the three races of powdery mildew when tested with additional races of the fungus was reported by Moseman (6). Results from tests of 372 of these varieties with leaf rust, scald (caused by Rhynchosporium secalis (Oud.) J. j. Davis), and soil-borne viruses Marmot tritici var. typicum McK. and M. tritici var. fulvum McK. also have been reported (7).