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2. Coupling estimated effects of QTLs for physiological traits to a crop growth model: predicting yield variation among recombinant inbred lines in barley

Author

Yin, Xinyou, Chasalow, Scott D., Dourleijn, C. Johan, Stam, Piet, and Kropff, Martin J.

Subjects
Plant genetics -- Research, Barley -- Genetic aspects, Crops -- Models, Plants -- Physiological aspects, Chromosome mapping -- Usage, Genetically modified plants -- Genetic aspects, Inbreeding -- Research, Biological sciences
Abstract

Predicting barley yield variation among recombinant inbred lines is discussed. A study has been carried out to assess ability of a crop growth model with QTL-based estimates of physiological input parameters to the yield. The model predicts yield as spike biomass accumulates in the post-flowering period. A two-stage procedure for predicting trait values from estimated additive and epistatic effects of QTLs is described. Both types of input values often gave large discrepancies between observed and predicted values.

Published
2000

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