PARNELL, AYYANGAR, RAMIAH, AND AYYANGAR 207 
it is a matter of some difficulty to obtain reliable figures where a number of 
different types of rice colour are concerned, 
Sixty F, families were raised from various types of F, plants* of the above 
cross and the results were in complete agreement with expectation so far as 
the types of segregation were concerned. The tables that follow show the 
types of segregation obtained from all the F, plants possessing the factor P 
that were carried on as parents. 
In Table XII, which comprises the pigmented, purple rice parents, the 
types appearing in the different families are shown by a + sign under the 
respective headings. 
TABLE XII. 
Pigmented, purple rice parents. 
pr 
| PIGMENTED UNPIGMENTED 
re | No. of | 
Constitution =| lots | Purple | Red | White | Purple | Brown Red | Grey- | White 
| brown 
PAN |pRAN prAN|PAn| Pa |pRAn|pBa 
| 9 7 
PpRrAaNn .. a | mais a ae | ee frances i) ea 
PpRRAaNn ..| 2 Be 4 rs | a 4 oe 
PprrAaNn - ) af ve a | a8 | 
PaPewA aN? 96. | 4+: } 4p 4 | 2 | 
| | 
PpRrAaNN .. 3 ee oe, fist! ae eee he = i = 
PprrAaNN ae 2 ce | dis ae 
PpRrAANn .. 1 | hs eee ie ap ue 
PpRRAANn .. 2 == aa le ote | 
275 | Sane ae eet ees bee | 
| Pure | 
Beers CNN, A cd ICN Uat ul dan om a ieee | 
PP..AANN rie | | 
} } 
In Table XIII families from unpigmented parents, both purple and 
brown rice, are shown in the same way. 
* Selected to cover the range of variation but with no reference to their proportions 
in F,. 
