118 ISABURO NAGAL: 
always quicker than the non-pigmented ones, even if they were allowed 
to germinate under similar conditions. ‘Therefore, in the case with rice, at 
least in the varieties examined, the rate of absorption of water and germina- 
tion are not controlled by the red pigment in the pericarp. 
The writer undertook a series of tests on the action of various chemical 
substances upon the desiccated and air dried grains of rice and maize. 
After the grains are steeped in the reagent for a certain length of time, they 
are thoroughly washed in running water at least for an hour, to remove all 
trace of an adhered reagent before they are placed on the germination bed. 
The results of the tests are tabulated and given in the Tables IU-VII. 
Taste Ill. Germination Table.— Oryza sativa. 
+ signs in the column indicate the condition of the grain, For example, under Hulls 
removed +, Desiccated +, read:—the grains are hulled and desiccated. “ Ak” =“ Aka-gome.” 
¢ Oh?’ =* Chiba-nishiki; | Apo “Oo Arakı ae Ko —= = KTMaAmOLO. gue SR = = ONT ; 
Condition. No. of grains. 
2 
& ob a 3 Wiss 
Reagent. a zh 3 5 3 T > 3 E 
o 8 = At Si) By | sce eae 
Ss“ a B-1 u |.2 eg | Pee ae 
Z S|) 2 1.27 Sa 
= = = 5 - 
Fi 2 
Chloroform 24. hues =f Eu 12 4 16 
CHCl, a SPATZ at fb 3 5 8 
7 NH + ar Ooh Lae a! 
„ “Ch.” + + 0.4 JS 8 
7 days 4 4 + 0 25 25 
Methyl alcohol 21.20 KENT + + 07 | 2 198215 
(absolute) 24 3 mi + 02) 152219 
CH,' OH 21.20 Ar, + + 022152 E15 
24 Seles” + en OP is Lome. 
Formaldehyde 21.20 PIN hl + + 0 15 15 
H:CHO ‘ 21.20 AT + + Ueda hss ae hs: 
Formic acid 24 «AK + + 0 10 10 
H : COOH 24 AK + - 0 10 10 
