80 



THE INHERITANCE OF CHARACTERS IN RICE 



20 bhort-glumed 



liomozygotes. The loiig-glumed recessives were rather variable, but in no case 

 did they approach the other grou|). 



A number of ¥2 plants from two segregating famihes gave the following 

 results in F3 : — 



7 long-glumed F^ plants gave pure long-glumed F3. 



7 pure short-glumed F3. 

 13 segregating F3. 



From the figures given in Table II it is evident that the normal sJiort- 

 glumed character is simply dominant to the long-glumed. 



This is in accordance with the results of Van der Stok^ who states that the 

 normal type is dominant. 



Table II. 



Length of outer glumes. 



(6) Golden colour of inner glumes and internode. 



The most usual colour of the inner glumes is a light green (Plate II, 

 fig. 1) ripening to pale straw, but there are numberless varieties with 

 other colours. Of these one of the commonest is some form of what may 

 be described as golden colouring, though this varies in different varieties 

 from orange-yellow to reddish-brown (Plate II, figs. 2 and 3) at the time of 

 flowering, becoming rather darker and duller on ripening. Plate I shows 

 photographs of ripe grains of green (fig. 2) and gold (figs. 1 and 3.) 



Van der Stok, /. c, p. 47. 



