MR. A. W. SUTTON ON BRASSICA CROSSES. 345 
Fig. 83. 28 were bulbless with Kohl Rabi foliage. 
„ 84. 38 had broad Cabbage-like leaves with a bulbless elongated stem. 
From the 9:3 x3:1 Mendelian ratio, we should expect— 
From 208 plants. 
Bulbed, Thousand-headed Kale foliage ‚2. 117 
„ Kohl Rabi foliage ... ... 39 
Bulbless, Thousand-headed Kale foliage ‚2. 39 
Kohl Rabi foliage... .. m 13 
d Ф 
Kohl Rabi on Drumhead Cabbage 
(PI. 33. figs. 85 & 86). 
The plants of F 1 in this cross had slight indication of the bulbing character 
with foliage resembling that of the Cabbage. There was, however, no sign 
of the * hearting " tendency of the Cabbage (fig. 87). 
215 plants were raised of the F 2 generation (see figs. 88, 89, & 90). ОЕ 
these :— 
Fig. 88. 45 had distinet Kohl Rabi bulbs and foliage. 
„ 89. 154 had rather enlarged stems, as if influenced by Kohl Rabi, 
the foliage being variable and undeterminate. 
„ 90. Only 16 plants had leaves closely resembling those of the Cabbage. 
As regards typieal Kohl Rabi plants there were— 
Found (215 plants). Expected (from 216 plants). 
Kohl Rabi  ......... 45 94 
Not Kohl Rabi ...... 170 162 
In the reciprocal cross :— 
б 9 
Drumhead Cabbage on Kohl Rabi (see figs. 85 & 86), 
the plants of F 1 were similar to those of F 1 in the reverse cross, having 
Cabbage-like leaves and a slight bulb (fig. 91). 
195 plants were grown of the F 2 generation (see figs. 92, 93, 94, & 95, 
Pl. 84). Of these— 
Fig. 92. 46 were like Kohl Habi (2 of these purple-leaved). 
„ 93. 8 had leaves like Cabbage (6 of these purple). 
» 94. 140 had enlarged stems with foliage of variable character. 
» 95. 1 resembled a Kale with a “curled” or “ fringed ” leaf. 
As regards typical Kohl Rabi plants there were— 
Found (195 plants). Expected (from 196 plants). 
Kohl Rabi  ...... | 46 49 
Not Kohl Rabi ...... 149 147 
