COMPARISON OF EFFICIENCY OF ALTERNATIVE SELECTION-STRATEGIES - AN EXAMPLE OF SELECTION FOR RESISTANCE TO COMMON SCAB IN POTATOES

This paper describes a procedure for obtaining point estimates and con fidence intervals of response to different selection strategies based on results of analysis of variance. Three alternative selection strate gies were compared: family, within-family, and individual selection. E xperimental data on field resistance of potato seedlings to common sca b were used to illustrate the procedure. The confidence intervals were then compared with the intervals established by a normal-approximatio n procedure.