‘r92t] 
HOW E—ROOT HAIRS 
TABLE I 
RUTHENIAN RED FOR PECTIC MATERIAL, IN 
PE ice 2 PER CENT POTASSIUM 
OXIDE FOR PECTIC ACID, WHICH IS 
DISSOLVED BY IT; 2 PER CENT HYDRO- 
CHLORI se 
AMMONIUM OXALATE AND 
c 
TALS AND AMMONIUM 
PECTATE 
FOR CHANGE OF PECTOSE: 
SOLUBLE IN WATER 
SEEDS 
Test oe oxalate Test for pectic material 
_Loam Sand Loam Sand 
goed Aen eleey. Many Many Thick layer; pec- aie soot _ changed 
i eee crystals crystals tose changed in chie fy, 
mostly to yore aby fe pect 
acid cid 
Beans (Bush lima)..| Few Few Pectose changed | Thin layer; 
crystals crystals chiefly to pec- changed chiefly 
tin,some to pec-| _ to pectic acid 
tic acid; thin 
r 
Beans (Pole lima)..| Many crys-| Many Thick; pectose | Thick; pectose 
tals, es- crystals changed to pec-| changed to pec- 
cially tic acid tic acid 
in older 
roothairs 
— (Golden Very few | Very few Se layer; ee Same as in loam 
9 a ea ok crystals crystals ose — 
pecile ax 
Cabbage (Chinese).| Crystals Many Pectose changed | Same as in loam 
fairly crystals largely to pectin 
abundant 
— (Early Very few | Many bore alin Siok Sgt Same as in loam 
ee y Wake- crystals changed t 
dk aes Seckie pe 
Carrot (Danver’s ? ? __ layer; pec-| Same as in loam 
half long)... ... chan, 
erties acid 
ao eben 9 Many Many Thick layer; gt Same as in loam 
Se ‘ crystals crystals tose changed to 
pectic acid 
~~ — Very few | Very few, cori changed | Pectose _ ch 
at eee even less 0 pectic acid topectin chiefly, 
than in some to i 
loam aci 
Cucumber (Early | Almost no | Almost no {| Thin layer; pec- ll ag 
fottume).: 5-3 crystals crystals tose changed tose chan, 
mostly to pec- mostly to <a 
in, some to pec- 
‘ tic aci 
