INFLUENCE OF THE ALKALI SALTS UPON THE GROWTH OF RICE PLANTS. 273 
3. Result with MgCl 2 and MgS0 4 . 
Solutions used 
Length 
of leaf 
mm. 
Length 
of root 
mm. 
Number 
of roots 
fa N. MgCl 2 30 cc. 
45 
35 
1 
fa N. MgCI 2 25 cc. + fa N. MgS0 4 5 cc. 
60 
40 
fa N. MgCl 2 20 cc. + fa N. MgS0 4 10 cc. 
55 
30 
fa N. MgCl 2 15 cc. + fa N. MgS0 4 15 cc. 
48 
30 
fa N. MgCl 2 10 cc. + fa N. MgS0 4 20 cc. 
50 
25 
JgN.MgCl 2 5 cc. l- J 0 N.MgSO 4 2S cc. 
55 
25 
fa N. MgS0 4 30 cc. 
40 
25 
Distilled water 30 cc. 
80 
50 
7 
Culture period Nov. 19th — Oct. 1st (1912). 
Initial length of seedlings 20 mm. 
4. Result with NaN0 3 and NaCl. 
Solutions used 
Length 
of leaf 
mm. 
Length 
of root 
mm. 
Number 
of roots 
J ö N. NaNO a 30 cc. 
43 
25 
I 
J 5 N. NaN0 3 25 cc. + -L N. NaCl 5 cc. 
63 
35 
Jg N. NaNO a 20 cc. + x \ N. NaCl 10 cc. 
59 
30 
6* 
jL N. NaN0 3 15 cc. + fa N. NaCl 15 cc. 
55 
35 
6* 
fa N. NaN0 3 10 cc. + fa N. NaCl 20 cc. 
50 
25 
5 X 
fa N. NaN0 3 5 cc. + fa N. NaCl 25 cc. 
57 
30 
6 X 
fa N. NaCl 30 cc. 
46 
25 
3 X 
Distilled water 30 cc. 
78 
58 
7 
Culture period Feb. 20th — March 5th (1913). 
Initial length of seedlings 25 mm. 
