246 



Studies in Indian Cotton 



TABLE V. 



7'Ae F^ generation of crosses between type 3, in which the red colouring 

 matter is present, and types in which it is absent. 



Coloured Colourless 



^ 5 of these shown by experiment to be impure. 

 22 „ „ „ pure. 



34 „ ,, ,, impure. 



* 22 „ „ „ pure. 



Flower colour. 



TABLE VI. 



Type 3 {red flowered) x Type 4 {yellow flowered). 



Fi 38 plants with flowers red on yellow and the red colouring matter extending 



to veins. 



RR 

 Fj Foliage (lamina) 

 77 

 Ratio 1-1 

 Used as J 61 lamina 

 parents 1 2 veins 



RR Rr RR+Rr rr 



(Lamina) (Ribs or veins) (Total coloured) (Colourless) 



Fs 1328 832 1692 2524 773 12451 



Ratio 107 2-18 1-90 



1 And 4 red plants. A consideration of other characters indicates that 2 of these are 



without doubt either volunteer plants or have arisen through an accidental mixing 

 of seed. 



