17, 6 
Trelease: Salt Requirements of Wheat Plants 
551 
Table 4. — Relative dry weights of tops and roots of wheat; also, water - 
absorption data, and the amount of tvater absorbed for each gram of 
yield of tops and of roots ( water requirement) , relative to the highest 
as 100; for series I, conducted from January 11 to February U, 1916. 
Culture No. 
Dry weight. 
Water 
absorption. 
Water requirement. 
Tops 
(6 plants). 
Roots 
(6 plants). 
Tops. 
Roots. 
T1R1C1 
60L 
60L 
58L 
80L 
66L 
C2 
71L 
63L 
82L 
94H 
88 
C3 
85 
70 
97H 
94H 
95H 
C4 
70L 
58L 
83 
98H 
98H 
C5 
80 
5iL 
81L 
81L 
99H 
C6 
68L 
65L 
78L 
93H 
96H 
C7 
86 
80H 
87 
84 
74L 
R2C1 
74L 
67 
80L 
89 
82 
C2 
81 
69 
84 
85 
82 
C3 
82 
60L 
86 
86 
97H 
C4 
84 
66 
88 
85 
91H 
C5 
79 
65L 
82L 
85 
86 
C6 
83 
80H 
86 
84 
72L 
R3C1 
70L 
63L 
74L 
87 
80 
C2 
79 
63L 
80L 
84 
87 
C3 
85 
63L 
82L 
79L 
89H 
C4 
87H 
62L 
85 
80L 
93H 
C5 
81 
77 
80L 
81L 
71L 
R4C1 
77L 
68 
83 
89 
84 
C2 
89H 
65L 
88 
81L 
92H 
C3 
90H 
69 
89 
82L 
88 
C4 
79 
67 
80L 
83 
81 
R5C1 
77L 
66L 
83 
89 
87 
C2 
93H 
66 
89 
78L 
92 H 
C3 
88H 
76 
90 
83 
81 
R6C1 
84 
65L 
85 
82L 
90H 
C2 
89H 
66 
89 
82L 
92H 
R7C1 
83 
56L 
80L 
79L 
98H 
T2R1C1 
71L 
74 
76L 
88 
71L 
C2 
72L 
56L 
74L 
84 
90H 
C3 
80 
57L 
83 
85 
1 00H 
(2058) 
C4 
78 
67 
93H 
98H 
96H 
C6 
86 
74 
94H 
90 
88 
C6 
81 
69 
83 
85 
83 
R2C1 
74L 
66 
80L 
89 
83 
C2 
85 
61L 
81L 
78L 
91H 
C3 
93H 
76 
97H 
86 
88 
C4 
88H 
69 
90 
84 
88 
C5 
85 
78H 
88 
86 
77L 
R3C1 
76L 
65L 
80L 
87 
84 
C2 
88H 
66L 
86 
80L 
90H 
C3 ..< 
87H 
59L 
83 
79L 
97H 
C4 
93H 
86H 
92H 
82L 
74L 
R4C1 
77L 
62L 
81L 
87 
89H 
C2 
1 00H 
80H 
1 00H 
82L 
86 
