THE USE OF EMPIRICAL BREEDING VALUES TO IMPROVE GENETIC PROGRESS IN HOPS

R.A. Beatson, P.A. Alspach
A study was conducted on the use of best linear unbiased predictors (BLUP) to estimate breeding values (BV) as a breeding tool to aid the development of seedless triploid aroma hop genotypes. BLUP is well suited to perennial crop breeding programmes where trials often involve unbalanced data sets conducted on the same plants across multiple environments. Parental material included noble aroma cultivars ‘Saazer’, ‘Hallertauer Mittelfrueh’ and ‘Fuggle’ crossed to three New Zealand bred male selections. The populations derived from these crosses were grown at different times over a five year period. The resulting BV thus allows the breeder to utilise all of the combined trial data available no matter what the stage of selection development. They also take into consideration genetic correlations, genetic relatedness and heritability estimates. The use of the BLUP procedure to estimate genetic gain for important commercial characters and to derive suitable selection indices is discussed.
Beatson, R.A. and Alspach, P.A. (2009). THE USE OF EMPIRICAL BREEDING VALUES TO IMPROVE GENETIC PROGRESS IN HOPS. Acta Hortic. 848, 93-100
DOI: 10.17660/ActaHortic.2009.848.10
https://doi.org/10.17660/ActaHortic.2009.848.10
best linear unbiased predictor, genetic analysis, selection index, plant breeding, triploids, Humulus lupulus
English

Acta Horticulturae