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Selection Methods in Plant Breeding
very long time span, in fact since settled agriculture was first undertaken.
Nowadays these procedures range from very simple mass selection methods,
sometimes applied in an ineffective way, to indirect trait selection based on
molecular markers. The procedures differ in costs as well as in genetic efficiency.
In contrast to the genetic efficiency, costs depend on the local conditions
encountered by the breeder. The genetic progress per unit of money invested
varies consequently from site to site. This book considers consequently only
the genetic efficiency, i.e. the rate of progress to be expected when applying
a certain selection procedure.
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