Oat Varieties Highly Resistant to Crown Rust and Their Probable Agronomic Value¹

Disease Reaction and Agronomic Qualities of Oats Selections from a Columbia x Victoria‐Richland Cross1

“…The complete association between the "Victoria type" of crown rust resistance and susceptibility to Victoria blight in crosses with varieties of this origin, has also been pointed out by Litzenberger (4). De-velopmeniC of varieties using Bond as a source of crown rust and smut resistance and their replacement of the Victoria-Richland varieties in commercial usage has been related by various workers (20,14,13,2,19).…”

Inheritance of Resistance to Helminthosporium Blight, Crown Rust Race 216, and Stem Rust Race 7A in Oats1

“…S INCE the introduction of the crown rus~-resistant oat varieties, Victoria in 1927 ( 13) and Bond m 1929 (15), extensive oat breeding programs have been devoted to the development of varieties resistant to crown rust. This source of resistance was very effective for a time, but gradually new races of the causal fungus capable of attacking these varieties increased so that the resistance was no longer effective.…”

Variation in the Rusts of Cereals1

“…No high degree of resistance to crown rust was available prior to the introduction of the variety Victoria from South America in 1927 and the variety Bond from Australia in 1929. Both were found to be highly resistant to the crown-rust races at that time prevalent in North America (Murphy & Stanton, 1930; Stanton & Murphy, 1933). Neither variety was suitable for farm cultivation, but both were used extensively in crosses designed to produce high-yielding, rust-resistant varieties.…”