1 88 
Fraser . — Parallel Tests of Seeds by 
Table IX. 
Electrical response in volts. Strength and direction of shock at head of columns. 
+ 1,000 
— 1,000 
+ 10,000 
— 10,000 
units. 
units. 
twits. 
twits. 
I. 
+ 0*0065 
+ 0*0040 
+ 0*0150 
+ 0*0030 
2. 
+ 0*0058 
+ 0*0058 
+ 0*0092 
+ 0*0046 
3 - 
+ 0*0450 
+ 0*0430 
+ 0*0220 
— 0*0110 
4 * 
+ 0*0100 
+ 0*0100 
+ 0*0100 
0 
5 - 
+ 0*0177 
+ 0*0085 
+ 0*0085 
— 0*0030 
6. 
+ 0*0008 
0 
+ 0*0023 
+ 0*0008 
7 * 
+ 0*0263 
+ 0*0173 
+ 0*0127 
— 0*0027 
8. 
+ 0*0025 
+ 0*0090 
+ 0*0115 
0 
9 * 
0 
0 
— 0*0020 
0 
10. 
+ 0*0100 
+ 0*0057 
+ 0*0121 
— 0*0021 
Average of 10 
experiments : — 
+ 0*0124 
+ 0*0103 
+ 0*0105 
+ 0*0027 
Table IX. — Electrical responses of embryos of Hordeum vulgare treated with distilled water for 
25 hours. Temperature = 23 0 C. Germination value = 85 %. 
Table X. 
Electrical response in volts. Strength and direction of shock at head of columns. 
+ 1,000 
— 1,000 
+ 10,000 
— 10,000 
units. 
units. 
twits. 
twits. 
I. 
0 
0 
0 
0 
2. 
+ 0*0050 
+ 0*0040 
+ 0*0150 
+ 0*0025 
3 - 
0 
+ 0*0004 
0 
0 
4 * 
+ 0*0020 
0 
+ 0*0025 
+ 0*0005 
5. 
0 
0 
0 
0 
6. 
0 
0 
+ 0*0004 
+ 0*0004 
7 - 
+ 0*0100 
+ 0*0220 
+ 0*0240 
+ 0*0010 
8. 
0 
O 
0 
0 
9 * 
1 — 1 
1 
0 
6 
0 
M 
to 
1 1 
+ 0*0016 
+ 0*0024 
+ 0*0040 
+ 0*0012 
10. 
+ 0*0013 
+ 0*0040 
+ 0*0073 
O 
Average of 10 
experiments : — 
+ 0*0021 
+ 0*0032 
+ 0*0053 
+ 0*0005 
Table X. — Electrical responses of embryos of Hordeum vulgare treated with distilled water for 
25 hours. Temperature = 23°C. Germination value = 50%. 
Table XI. 
Electrical response in volts. Strength and direction of shock at head of columns. 
Germination 
+ 1 ,000 
— 1,000 
+ 10*000 
+ 10,000 
No. of hours 
germinated. 
value. 
units . 
units . 
units. 
twits. 
85 % 
0*0034 
0*0027 
0*0051 
0*0008 
28 
85 % 
0*0124 
0*0103 
0*0105 
0*0027 
25 
50 % 
0*0008 
0*0013 
0*0018 
0*0003 
28 
50 % 
0*0020 
0*0032 
0*0053 
0*0005 
25 
Table XI. — Average electrical responses of embryos of Hordeum vulgare treated with distilled 
water. Temperature = 23°C. 
Summary of Results and Conclusions. 
1. The same samples of grain germinated under approximately the 
same conditions give results in which the germination value and the 
electrical response are quite consistent. 
