310 CARL HALLOVIST 

Bluish red X white (rrBBvvFF) in F, of cross 7 (table 19), 
Tinged blue X white (rrBBVVjf) in F, of cross 5 (table 15), 
Violet X white (rrbbVVFF) in F, of cross 6 (table 17). 
With the exception of the combinations tinged red X white, with 
the constitution rrBBvvff, and pure red X white, with the constitution 
rrbbvvFF, all those combinations have been investigated, where simple 
segregation is to be expected, and the segregation has in all these cases 
followed normal and good proportions without any selection or other 
disturbances. 
Three crosses have been made between whites on the one side 
and coloured but not blue types on the other. All theses combinations 
gave a synthesis of blue and segregated in F, in the ratios 9:3: 4. 
The proportions found in F, substantiate the results and correspond 
- 
with the hypothesis as well. These are the crosses 5, 6 and 7. 
Cross 5 (tables 14—15). 
White seed- and flower colours (rrBBVVFF) X tinged blue flower 
colour (RRBBVVjf); earth-brown, marbled seed. 
F, has slightly diluted blue flower colour and earth-brown seeds. 
The simplex stage of the factor F accounts for the slight dilution of 
the colour (Cp. cross 4). 
F, 53 blue: 10 tinged blue: 18 white (table 14) 
expected: 45,56 =: 15,19 : 20,25 
7,44 5,19 2,95 
M = 1,6 = 1,45 0 
D/M rer 1,60 di: 1,4 3. 0,58 
F, of the same cross gave: 
337 blue : 127 tinged blue : 138 white (table 15) 

expected: 338,62 : 112,88 :150,5 
1,62 14,02 12,5 
N = . = _ LE == a RATE + 5 
D lo Osi 9,58 _ 2 10,62 ee 
It is clear that the segregation of this cross takes place in the 
ratio 9: 3:4, even if the deviations often lie beyond the limits of 
the standard error in each generation. When the results in F, and Fs 
are summed up, however, the differences become smothed out, and 
the results conform to the theory, the quotients D/M being 0,15; 0,88; 
and 1,17 respectively. Also the rest of the results in F, corresponds 
with the hypothesis. The observed numerical relations are pretty well 
in accordance with the calculated as seen in the following. 
