Inheritance of Salmon Silk Color in Maize 
TABLE 1. Relation of Salmon Silks to Pericarp Color 
543 
I. Backcrosses of P Sm x p sm with p sm 
Pedigree no. 
P Sm 
P sm 
p Sm 
p sm 
Total 
253-4..... 
9 
6 
11 
20 
255 
5 
11 
12 
10 
256 
9 
6 
15 
7 
777-8 
41 
32 
41 
39 
Totals 
64 
55 
79 
76 
274 
Observed per cent of recombinations 48 . 9 
Per cent expected with independent segregation 50.0 ±2.0 
II. Backcrosses of p Sm x P sm with p sm 
Pedigree no. 
P Sm 
P sm 
p Sm 
p sm 
Total 
238-9 
43 
61 
51 
53 
241-2 
31 
28 
31 
38 
779-80 
23 
25 
25 
28 
781-2 
43 
40 
50 
40 
Totals 
140 
154 
157 
159 
610 
Observed per cent of recombinations 48.9 
Per cent expected with independent segregation 50.0±1 .4 
The observed per cent of recombinations is 48.9 in both series, which 
is in very close agreement with the expectancy for independent segrega- 
tion of P and Sm. 
In order to determine the possible relation of pericarp color to the dif- 
ference between salmon and brown silks, a light-pericarp, brown-silked 
plant was crossed with a red-pericarp salmon. This was backcrossed 
