INFLUENCE OF THE ALKALI SALTS UPON THE GROWTH OF RICE PLANTS. 279 
7. Result with NaCl and MgSO t . 
Solutions used 
Length 
of leaf 
,mm. 
Length 
of root 
mm. 
Number 
of roots 
■ffi JN. JNav^l 30 cc. 
38 
25 
I 
^ ö N. NaCl 25 cc. + ^ 
N. MgS0 4 
5 cc - 
55 
37 
6* 
N. NaCl 20 cc. + j^j 
N. MgS0 4 
10 cc. 
5 U 
33 
4 
^ N. NaCl 1 5 cc. + 
N. MgS0 4 
15 cc. 
45 
30 
3 X 
r ^ N. NaCl 10 cc. + Jq 
N. MgS0 4 
20 cc. 
48 
31 
1 
^ N. NaCl 5 cc. + & 
N. MgS0 4 25 cc. 
48 
32 
1 
A N. MgS0 4 30 cc. 
30 
35 
1 
Distilled water 30 cc. 
50 
80 
6 
• Nov. 19th— 
Oct. 1st (19 
Initial length of seedlings 10 mm. 
8. Result with Na 2 S0 4 and MgCl 2 . 
Solutions 
used 
Length 
of leaf 
mm. 
Length 
of root 
mm. 
Number 
of roots 
T ^ N. Na 2 S0 4 30 cc. 
45 
35 
I 
^ N. Na 2 S0 4 25 cc. + 
A N. MgCl 2 
5 cc. 
80 
40 
6 X 
3^5 N. Na 2 S0 4 20 cc. + 
J ö N. MgCl 2 
10 cc. 
80 
38 
6 X 
-* ö N. Na 2 S0 4 15 cc. + 
A N. MgCl 2 
1 5 cc. 
65 
45 
4 X 
^ N. Na 2 S0 4 10 cc. + 
A N. MgCI 2 
20 cc. 
50 
30 
1 
^ N. Na 2 S0 4 5 cc. + 
A N. MgCl 2 
25 cc. 
60 
25 
1 
A N. MgCl 2 30 cc. 
55 
40 
1 
Distilled water 30 cc. 
80 
50 
7 
Culture period Nov. 19th— Oct. ist (1912). 
Initial length of seedlings so mm. 
