Date: Friday, 12th May 2000 Time: 3.15 Room: Lecture Theatre C, James Clerk Maxwell Building, King's Buildings Speaker: Robin Thompson (IACR, Rothamsted) Title: Combining sugar beet trials Abstract: Variety trials are carried out each year in Britain on sugar beet with the aim of giving farmers recommendations on which varieties to grow. This talk will review recent advances in estimating variance parameters and show how they can be used to incorporate spatial, year and site variation into predictions of varietial performance. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%