Optimum number of regional trials for selection of wheat varieties in northern grain region
No hay miniatura disponible
Fecha
Autores
Título de la revista
ISSN de la revista
Título del volumen
Editor
Resumen
Descripción
The major purpose of any testing program is to establish repeatable differences between
cultivars in a given environment but cultivars rarely perform consistently across the range of
environments in which they are tested. Plant breeders recognise that the nature of genetic
material and the environments in which it is tested are such that there is a lot of uncertainty
involved in the selection of superior varieties.
Economists have not been closely involved with the cultivar selection process and only
recently has there been much interest taken by economists in the costs and management of
breeding programs (Brennan et al. 1998).
This paper tries to estimate long term variable costs of conducting regional variety trials and
to determine the optimal number of trials for south Queensland and northern New South
Wales graingrowing regions.