RICE 
156 CORRELATION OF COLOUR CHARACTERS IN 
9 
ade 
COLOUR IN THE LIGULE. 
In two varieties out of those experimented with, the ligule is coloured. 
In the first, the colour segregates in a 9: 7 ratio, in the second in a 27: 37 
ratio. The details are given in the table. 
Theoretical Variety F, Observed ratio 
ratio Colour x no colour Colour : no colour Colour : no colour 
9 : j | |{ Total + families 
(1-2 1 -| Muramagar x Pookhi | 1-20 ] 
Z | |< 1,646 1,370 | 
| “1: 
; Total 8 families 
Ta ee t Agartollah x © 25 H yy 1-36 
( ye L 1972 2,697 | 
3. CoLOUR IN THE PULVINUS AND AURICLES. 
In two varieties experimented with, colour is found in the pulvinus and 
auricles, vz., in the variety Bailabakri and in the variety Agartollah. These 
both segregate in'a 9: 7 ratio as shown in the table. 
| 
Theoretical Variety | 5 Observed ratio 
ratio Colour X no colour | Colour: no colour Colour: no colour 
9 ; | Total 8 families \ 
1-2 | Bailabakri > Pookhi 1 12 : 1 
a ae | 2,607 2080 J 
Total 7 families 
| Agartollah x C 25 \ 1:3 : 1 
| 2,670 1,999 
| 
4. CoLOUR IN THE INTERNODE. 
As in the leaf-sheath, colour in the internode is found in the epidermis, 
in the bundle-sheaths, in the general parenchyma, or in various combinations 
of these. Here again coloured internode means simply visible colour in the 
internode, as seen from the outside by the naked eye, irrespective of the 
situation of the colour. Colour has always been found dominant to its absence, 
and on crossing, has been found, in the varieties experimented with, to 
