Inheritance of Salmon Silk Color in Maizl 
545 
by the fact that no selfed progenies from light-pericarp plants have ever 
given any good salmon silks, while progenies from red-pericarp plants 
have always given some salmon silks even tho the parents had been noted 
otherwise. No brown silks have been found in families breeding true 
for red pericarp. 
Relation of salmon silks to the B and PI factors for plant color 
Several crosses made with salmon silks involved the B factor. Both 
Fi combinations, B Sm x b sm and B sm x b Sm, were backcrossed with 
the double recessive. The results (table 3) show independent segregation 
of these factors. 
TABLE 3, Relation of Salmon Silks to the B and PI Factors for Plant Color 
I. Backcrosses of B Sm x b sm with 6 sm 
Pedigree no. 
B Sm 
B sm 
b Sm 
b sm 
Total 
241-2 
25 
24 
39 
41 
779-80 
21 
19 
28 
35 
Totals 
46 
43 
07 
70 
232 
Observed per cent of recombinations 47.4 
Per cent expected with independent segregation 50.0±2.2 
II. Backcrosses of B sm x b Sm with b sm 
Pedigree no. 
B Sm 
B sm 
b Sm 
b sm 
Total 
774-6 
78 
02 
80 
53 
273 
Observed per cent of recombinations 
Per cent expected with independent segregation 
47.0 
50.0±2.0 
