Cereal Rust Diseases - Plant Management Network
Cereal Rust Diseases - Plant Management Network
Cereal Rust Diseases - Plant Management Network
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Genetic basis of durable resistance to rust diseases of<br />
% <strong>Rust</strong><br />
wheat<br />
100<br />
Susceptible<br />
80<br />
60<br />
1 to 2 minor<br />
genes<br />
40<br />
20<br />
0<br />
0 10 20 30 40 50<br />
Days data recorded<br />
2 to 3 minor genes<br />
Munal, Picaflor,<br />
Francolin, Pauraque<br />
4 to 5 minor genes<br />
Kingbird<br />
Ravi Singh, CIMMYT<br />
Relatively few additive genes, each having small to<br />
intermediate effects, required for satisfactory disease control<br />
Near-immunity (trace to 5% severity) can be achieved even<br />
under high disease pressure by combining 4-5 minor genes<br />
with additive effects
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