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major gene

Catalogue: Ground Cover
New breeding strategy offers more durable crop improvement.. Dr Singh says agriculture has to move on from 'catch-up' breeding, in which a trait addresses an issue but the benefit is temporary, due to the environmental or disease challenge changes... Dr Sybil Herrera works with Dr Singh on the GRDC-supported Durable Rust Resistance in Wheat initiative, led by Cornell University, trying to identify the genes that provide APR...
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Catalogue: GRDC Updates
Adult plant resistance (APR) This form of resistance is not effective at the seedling stage but increases in effectiveness as the plant develops... Some resistance genes are affected more by temperature... Adult plant resistance and problems with variety disease ratings Because APR is controlled by different minor genes that operate through different mechanisms, the growth stage at which the resistance is expressed and the environmental conditions under which it is best expressed vary from one variety to another...
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