MANGANESE CHLOROSIS OF PINEAPPLE. 
13 
Table 7. — Weight and condition of rice grown in Loew and Sawa's nutrient solution 
to which manganous sulphate, manganese dioxid, and calcium carbonate were 
added. 
ries. 
Culture solutions with amount Flask 
of added material per liter. No. 
Mn from 
Fe omitted, 
gm. Fe from 
gm. 
Mn 
Check; sol.+0.037 gm. Fe 
from FeS04. 
Sol. +0.037 gm. Fe from 
FeSOH-0.072 gm. Mn | 
from MnS0 4 . 
Sol. +0.072 gm, 
MnS0 4 
Sol.+0.U3 
FeSO 4+0.036 
from MnS0 4 . 
Sol. +0.037 gm 
FeSO 4 +0.018 
from MnS04. 
Sol. +0.037 gm 
FeSO4+0.004 
from MnS04. 
Sol. +0.037 gm. Fe from 
FeSO4+0.4 gm. Mn0 2 . 
Sol. +0.037 gm. Fe from 
FeSO 4 +0.4 gm. MnO* 
+0.4 gm. CaC0 3 . 
Sol. +0.037 gm. Fe from 
FeSO 4 +0.4gm. CaC0 3 . 
Fe 
gm. 
Fe 
gm. 
from 
Mn 
from 
Mn 
Green 
Oven- 
weight A 4g ht 
of 
stalks 
and 
of 
stalks 
and 
leaves. 
leaves. 
Grams. Grams. 
2. 86 0. 58 
3. 70 . 66 
3.04 
3.59 
2.66 
2.67 
3.44 
4.15 
4.63 
4.60 
4.59 
4.58 
5.42 
6.74 
.48 
.48 
.04 
.05 
.58 
.59 
,61 
Oven- 
dry 
weight 
of 
roots. 
Grams. 
0.17 
.21 
.14 
.15 
.03 
.04 
.18 
.19 
Average oven- 
dry weight. 
Sta] , ks Whole 
le a avl *■*■ 
Grams. Grams. 
0.62 
0.81 
.48 
.63 
.05 
.08 
.59 
.77 
.54 
.75 
.67 
.80 
.84 
1.08 
.73 
.96 
.98 
Condition of plant 
j-Green; healthy. 
{Green; older leaves 
spotted with 
brown. 
JDead. 
{Green; older leaves 
spotted with 
brown. 
>Green; healthy. 
| Do. 
} Do. 
} Do. 
} Do. 
Table 8. — Weight and condition of rice grown in Gile and Carrero's nutrient solu- 
tion to which manganous sulphate, manganese dioxid, and calcium carbonate were 
added. 
Se- 
Culture solutions with amount Flask 
of added material per liter. No 
Cheek; sol. +0.0014 gm. Fe 
from FeCh. 
Sol. +0.0014 gm. Fe from 
FeCl 3 +0.072 gm. Mn 
from MnSOi. 
Sol. +0.072 gm. Mn from 
MnSO«; Fe omitted. 
Sol. +0.0014 gm. Fe 
FeCl 3 +0.036 gm. 
from MnS0 4 . 
Sol. +0.0014 gm. Fe 
FeCh+0.018 gm. 
from MnS0 4 . 
Sol. +0.0014 gm. Fe 
FeCls+0.004 gm. 
from MnS0 4 . 
Sol. +0.0014 gm. Fe from 
FeCh+0.4 gm. MnOi. 
Sol. +0.0014 gm. Fe from 
FeCh+0.4 gm. Mn from 
MnSO 4 +0.4gm. CaCOs. 
SoL+0.0014 gm. Fe from 
FeCh+O.l gm. 
CaC0 3 . 
from 
Mn 
from 
Mn 
from 
Mn 
*>$*\ weight 
Grams. 
3.01 
2.71 
.20 
.25 
.13 
.07 
.65 
1.11 
.58 
2.16 
1.08 
Grams. 
0.52 
Oven- 
dry 
weight 
of 
roots. 
Grams. 
0.23 
.19 
.04 
.04 
.04 
.04 
.05 
.07 
.07 
.04 
.13 
.08 
.04 
.04 
.04 
.05 
.04 
.05 
Average oven- 
dry weight. 
Stalks 
and 
leaves. 
Grams. 
0.49 
Whole 
plant. 
Condition of plant 
Grams. 
0.70 
.21 
22 |. 
us 
|Green; healthy. 
Leaves shriveled; 
brown; nearly 
dead. 
•Dead. 
Leaves brown 
spotted with 
dark brown. 
Leaves yellow 
and brownish. 
Lower leaves 
spotted with 
brown. 
X e a r 1 y d e a d ; 
light brownish 
white color. 
Bleaehed:yellow 
ish- white; 
stunted. 
Do. 
