List of selection index cutoff (one value per generation)

 

Use this option to specify a list of values to use as a cutoff for selecting progeny based on selection index.

Specify a list of numerical values indicating the cut-off to select progenies based on the selection index. Only those progenies in the selected subset will be crossed to produce the next breeding generation.

For each generation specified there must be one numeric value, separated by blank spaces for each generation specified in the Number of Generations option. Every cross, in a given generation, will use the same cut off value to select simulated progenies. For example, if there are 3 generations, then a list of integers "20 30 40" (without quotes) sets the analysis to select progenies with values either greater (if you check high values) or smaller (if you check low values) than 20, 30, 40 for the selection index in the first, second, and third generation, respectively.

To Specify the Selection Index Cut Off Values:

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Make sure that the Simulate multiple generations option has been checked.

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Select Index Selectionas the Progeny Selection Method.

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Specify the selection direction using the Choose the selection direction for the index option.

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Enter the desired cut off value for each generation in the text box. Be sure to leave a blank space between each value.

In the example shown here, we want to select progeny with greater than index values of 20, 30, and 40 in the first, second, and third generation, respectively. Specify the selection direction using the Choose the selection direction for the index option and enter 20 30 40 in the text box as shown below: