272 
IC. MIYAKE. 
power of counteracting the injurious effects of anions upon the develop- 
ment of rice plants. The following seven culture fluids which were com- 
posed of two salts with different anion but same cation, were used to be 
examined. The results obtained were as follows : 
1. Result with NaCl and Na 2 S0 4 . 
Solutions used 
Length 
of leaf 
mm. 
Length 
of root 
mm. 
Number 
of roots 
T 'ö N. NaCl 30 cc. 
42 
30 
T \3 N. NaCl 25 cc. + T 'o N. Na 2 S0 4 
5 cc. 
60 
40 
T ' ö N. NaCl 20 cc. + r \j N. Na 2 S0 4 
10 cc. 
S3 
30 
j'q N. NaCl 15 cc. + fit N. Na 2 S0 4 
15 cc. 
42 
30 
T \j N. NaCl 10 cc. + N. Na 2 S0 4 
20 cc. 
52 
30 
T \j N. NaCl 5 cc. + N. Na 2 S0 4 
25 cc. 
55 
30 
J B N. Na 2 S0 4 30 cc. 
45 
35 
Distilled water 30 cc. 
80 
50 
7 
Culture period Nov. 1 19th— Oct. ist (1912). 
Initial length of seedlings 20 mm. 
2. Result with KCl and K 2 S0 4 . 
Solutions used 
Legnth 
of leaf 
mm. 
Length 
of root 
mm. 
Number 
of roots 
T \, N. KCl 30 cc. 
40 
35 
6* 
-jo N. KCl 25 cc. + J ö N. K 2 S0 4 
5 cc. 
47 
43 
7 X 
N. KCl 20 cc. + l N. K 2 S0 4 
10 cc. 
47 
35 
6 X 
& N. KCl 1 5 cc. + J 5 N. K 2 S0 4 
15 cc. 
40 
32 
6 X 
N. KCl iocc. + J s N. K 2 S0 4 
20 cc. 
50 
50 
7* 
T \> N. KCl 5 cc. + J ö N. K 2 S0 4 
25 cc. 
47 
35 
7* 
J ö N.K 2 S0 4 30 cc. 
35 
25 
6* 
Distilled water 30 cc. 
58 
43 
7 
Culture period Feb. 1st.— Feb. 18th (1913). 
Initial length of seedlings 20 mm. 
