68 Studies of Inheritance in the Japanese Convolvulus 



Totals 



128 



We have obtained the two families of plants which breed true to 

 yellow leaves and red flowers, as indicated in Table XII. 



Pedigree 



No. of 



Fi plants 



16 



49(6) 



Leaf- 

 colour of 

 J3 plants 



yellow 



TABLE XII. 



Flower-colour of F-^ plants 



Dark-red 

 

 



Eed 



48 

 18 



White 

 

 



Totals 



The families which segregate into plants with red and those with 

 white flowers are found only among yellow F^ plants ; in F.^ the ratio of 

 red and white is 3 : 1, as shewn in Table XIII. 



TABLE XIII. 



Pedigree Leaf- --'" 



No. of colour of Dark- 

 JF2 plants Fz plants red 



17 

 18 

 19 

 38 

 39 

 59 

 60 



yellow 



Results 



Expected 



Red White Totals 



64 20 84 



25 



13 



6 



7 



20 



77 

 49 

 23 

 43 

 35 



102 

 62 

 29 

 50 

 55 



Dark- 

 red 





 

 

 

 

 



46 



22 



68 



Red 

 63-00 

 76-50 

 46-50 

 21-75 

 37-50 

 41-25 

 51-00 



White 

 21 00 

 25-50 

 15-50 

 7-25 

 12-50 

 13-75 

 17-00 



±1-00 

 ±0-50 

 ±2-50 

 ±1-25 

 ±5-50 

 ±6-25 

 ±5-00 



±3-969 

 ±4-373 

 ±3-410 

 ±2-332 

 ±3-062 

 ±3-211 

 ±3-571 



Totals 



337 113 450 



337-50 112-50 



±0-50 



±9-186 



The families of plants which segregate into those with dark-red 

 and those with white flowers are found only among those which remain 

 constantly green in F.^, and the ratio of dark-red and white is 3: 1, as 

 shewn in Table XIV. 



