16,5 Espino: Salt Requirements of Young Rice Plants 511 
proportions and the four total concentrations here dealt with did 
not differ significantly in their influence upon the ability of the 
plant tops to retain water. Calculating the water content as 
percentage of the corresponding green-weight value the result 
shows that the total range of these values is only from 79 to 87.5 
per cent, and most of the values lie between 83 and 86. It may 
be said that these tops were sensibly equally succulent for all 
cultures, irrespective of the total concentration or of the salt 
proportions. It is also clear that these tops were uniformly re- 
TABLE 13.—Water absorption (cubic centimeters per six plants) during 
the culture period, for series 14, 16, 19, and 20, beginning June 19. 
| 
Total concen- | 
tration 0,008 | tration 0.0016 | Tation 0. o088 | tration 0. 017 
Solution No. gram-molecule | per liter, or | gram-molecule ' gram-molecule 
per liter, or 0. 04 0.08 atmos- Pe liter, or 0.2 per liter, or 0.4 
gimosphsre | phere (series | “Sagenis), | ‘Yecries 20). 
: 16). ‘4 : 
| 
ec. ce. ce. ce, 
UL sens eee 188 H 228 H197 Hi68 
SERS listed ex Se ae ee Mae 185 H 196 168 H 154 
1 FROST SG Seen Sees ene ad 185 188 165 137 
Le gS Sr aoe POM cumini 174 187 157 127 
PU eae os et en 155L 168 L 142L 124 
Beery Pe ys ns a 190 H e205 H1i7 143 
Re ee ee eee eras H206 188 164 H163 
Pe oe Hio4 183 170 134 
Sh ettts A e H198 162L 160 129 
PROS eo evga Teg ht. ey 192 190 173 H176 
ee eo H 204 189 H184 H 155 
Bee ee H206 170 Higl 134 
WAS Pe 192 187 H204 H168 
A pee is Fas H 206 178 H180 H150 
2 Lh Gia aise ecru Pi see eel 169L 183 154 136 
ORIN ee ee 181 189 H184 142 
2 ESSN Cae ee er vee 145L 190 155 139 
Lo SO eae ee, 153 L 166 170 131 
Ph ree ee re 146L 161L 120L 128 
OS cic et es 167L Hi91 173 128 
ee ee rat H199 H217 H194 142 
Be ee 160L 143L 142L 123 
A ee es H201 174 153 H 145 
2 SEE od ee ee ee sean 186 183 158 138 
Bcc te eS oe 115 176 169 n3L 
Reames RO ee 176 H 193 138L 134 
Sis oe i ere Fe 181 166 146 136 
ERs a re ee 160 L 162L 128L 91L 
PI oe H194 H194 152; 135 
ee ee 176 1538L 144L 120L 
fa 2s ESE ee epee eee Rene or ene H210 190 150 119L 
ad Soar anil Nene CnpeN rs 178 150L 161 115L 
i. Pee ea ene 153 L 145L 108L 109L 
Re 191 162L 154 105L 
ioe See ie Sg eae H 199 167 126L 109L 
