Two new combinations of genes in our collection might be of more than ordinary interest. Rick, C. M. New Combinations: Ln-Wom and hp-1p. Although synthesized out of purely idle curiosity, they have some unique characteristics. Ln-Wom (LA1663). Since both of these genes augment the density of large trichome populations and are homozygous viable, I hybridized them to see what the combination might look like. Half expecting it to be weak or inviable like the more extreme Wo alleles, we were surprised to find it reasonably viable, although not of normal vigor. Fruitfulness varies, but we have been able to select variants that are more productive than others. The intensity of wooliness far exceeds that of any other line that we know and the white plants present a rather striking appearance. The formidable hairiness does not completely discourage horn worms or the pink potato aphid. We have not made any serious tests of resistance to these or other insect pests. hp-1p (LA1664). The cross between hp and Tp -- the pigment intensifier derived from L. chmielewskii -- was made to test the genetic relationship between the two. Since they segregate independently in F2, it was possible to select for the double homozygote, which we obtained without difficulty. Unripe fruits of this combination are so dark in exterior color that they appear more black than green. The flesh of ripe fruits also appears very dark in color, although we cannot say that it appears darker to the eye than that of hp. This stock varies in vigor, many plants being more productive and having larger fruits than our other stocks of hp. Rick, C. M. and J. F. Fobes Prx phenotypes. This note is prepared to list in a single group peroxidase variants   from various sources in the same fashion as our summary of Aps, Est, and Got (see Note by Fobes and Rick in this Report). The diagrams below illustrate the most characteristic phenotypic bandings as they appear in our gels. The + (Marglobe) allele is represented on the left of each locus group. For purposes of clarification, the entire array of + Prx bands is shown on the left of the Prx-4 series. The mean distance between origin and anodal front is 10.8 cm.

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