. PARNELL, AYYANGAR, RAMIAH, AND AYYANGAR 189 
Where the golds are splitting into different groups, due to the segregation 
of G or one of the modifying factors, the dark furrows show the same groups. 
An example of this is given in Table III, showing the segregation occurring in 
the GgIzi type, where the usual three groups appear in both golds and 
furrows. 
The first two families are F9’s of a cross between dark furrows, GG J J, 
and ripening gold, ggit; the others are from plants of Gq Ji constitution 
extracted from a more complicated cross. 
TABLE IIT. 
Segregation of Ge li. 
FURROWS GOLD = 
Origin of parent Ref. No. | 
Dark | Medium} Ripening | Dark | Medium | Ripening 
GGI Ggl ggl GGi G gi ggi 
: us { 2569 143 325 151 54 110 58 
Be OTIC 2105-573 237 482 267 81 170 74 
Cross No. 1236N .. 1763 N 188 385 193 80 126 75 
: 2237 N 126 230 126 43 86 50 
Medien suerows from i) eo40.N. | 80. =) 165 78 24 49 26 
; 2244N 75 168 86 27 59 30 
Miscellaneous .. 3 lots 215 412 | 237 63 166 67 
Toran st 1,064 | 2,167'| 1,138 ! 372 | 766 380 
J3IGRS SURO ge ULOF = 2.207. 3 HNO & SOM nS OMe EES OG) 
= Sd eS 
4,369 1,518 
} 331 4,415 : 1,472 
Counts have been made in a very large number of families showing 
segregation of / and the total figures are as follows :— 
Dark furrows (various) Gold (various) 
120 families ae 98,541 32,126 
Calculated 3 : 1 S 98,000 32,667 
Piebald factor P 
The action of this factor has been described in Part I, pp. 85 and 86, 
where figures are given, Table VII, showing a simple 3: / ratio of piebald : 
self-colour in both gold and dark furrows. Only one further family giving 
this type of segregation has been examined; this was the F, of a cross 
between dark gold, GGiipp, and piebald dark furrows, GGITL PP. 
