Abstract
The results of two cycles of recurrent selection for high specific gravity clearly indicate the effectiveness of this method for this attribute. An average gain of about .004 units of specific gravity of the second cycle over the first as measured in two locations in two seasons was significant beyond the .005 level. The results of seedling hill selection show that small gains can be made, but that these are not consistent enough for general application to seedling selection. In the situation where selection is for extremely high specific gravity, a moderate selection threshold would be generally effective. The coefficients of inbreeding and parentage of the selections of each cycle are presented.
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