Oct., 1922] TURNER EFFECTS OF CERTAIN MINERAL SALTS 427 
Table 4 {Continued) 
Series 4, 
35 days 
1.2889 
1.2836 
1.2500 
1.1891 
.2600 
.2864 
.2386 
•2333 
4- 95 
4.48 
5- 24 
5-09 
1.3420 
1-5517 
1.5643 
1.2883 
.2026 
.2233 
.2381 
.2099 
6.62 
6-94 
6.56 
6.13 
1-4853 
1.4250 
1. 1300 
1-3756 
.2200 
.2145 
.1568 
.2000 
6-75 
6.64 
7.21 
6.87 
Total . . 
5.0116 
1.0183 
5-7463 
-8739 
5-4159 
.7913 
Mean . . 
4.94±.iii 
6.56±.i02 
6.87±.o83 
Difference High Nitrate — Low Nitrate = 1.93 =b .138. 
Tops 
Sol. I (Low Nitrate) 
Sol. II (Medium Nitrate) 
Sol. Ill (High Nitrate) 
Roots 
Tops 
Roots 
Tops 
Roots 
Tops 
Roots 
Tops 
Roots 
Tops 
Roots 
Series 5, 
42 days 
1. 908 1 
1.6279 
1.6866 
1.8381 
.4140 
-3344 
•3025 
-3735 
4.61 
4-87 
5.58 
4.90 
2.4047 
I-9157 
2.0000 
2.0960 
-3131 
.2387 
.2700 
.2717 
7-70 
8.02 
7.41 
7.71 
2.0086 
1-7675 
2.1588 
1. 9140 
.2588 
.2263 
.3072 
.2384 
7-76 
7.81 
7-03 
8.03 
Total . . 
7.0607 
1.4244 
8.4161 
1-0935 
7.8489 
1.0307 
Mean . . 
4.99±.i39 
7.71^.084 
7.66±.i46 
Difference High Nitrate — Low Nitrate = 2.67 dz .201, 
Series 6, 
4g days 
2-5525 
.4710 
5-42 
2.8500 
-3243 
8.79 
2.7418 
.3200 
8.56 
2.3430 
•4397 
5-33 
3.0170 
-3619 
8-33 
3.2016 
.3600 
8.89 
2.3285 
.4180 
5-57 
3-2385 
-3952 
8.19 
2.1793 
.2168 
10.05 
2.4184 
.4844 
4-99 
2.7052 
.3456 
7.82 
2.4268 
.2719 
8.81 
Total . . 
9.6424 
1.8131 
II. 8107 
1.4270 
10.5495 
1. 1687 
Mean . . 
5.33±.o82 
8.28±.i35 
9.o8it.224 
Difference High Nitrate — Low Nitrate = 3.75 i .238. 
Table 4a. Increase in Ratio of Tops to Roots in Young Barley Plants at 
Different Stages of Maturity 
{Average of 4 Cultures, 4 Plants to a Culture) 
14 Days 
21 Days 
28 Days 
35 Days 
42 Days 
49 Days 
Low Ni- 
trate: 
Tops 
Roots 
]\Iedium Ni- 
trate: 
Tops 
Roots' 
High Ni- 
trate: 
Tops 
Roots' 
Mean. 3.28^.068 
Diff. 
Mean. 3.32±.095 
Diff. 
Mean. 
Diff. . 
4.22 ±.043 4.34d=.o63 
.94dz.080 ' .I2zb.076 
4.34=t.o88 i5.13i.076 
i.02±.i29 .79±.ii6 
4.i3±.i29 
5.20±.074 
1. 07 dr. 148 
5.75^-136 
.55±.i50 
4.94±.iii 
.6o±.i27 
6.56±.i02 
i.43±.i27 
6.87±.o83 
i.i2±.i57 
4.99±-i39 
.05±.i77 
7.71^.084 
I.i5±.i32 
7.66^.146 
.79d=.i68 
5.33±-o82 
.34±.i5i 
8.28±.i35 
-57±-i57 
9.08zb.224 
1. 42 dz. 267 
