INDEX 



267 



Dominance, and hormones, 219 

 as influenced by gravity, 248 

 and solute distribution, 158, 159, 

 238-251 



E 



Electrical charge, on hormone, 214, 

 216, 219 

 on virus, 213, 218 

 Elongation as a measure of trans- 

 location, 13, 26, 27, 38-41, 44 

 Eosin, effect on sieve tubes, 226 

 use in translocation studies, 92, 97, 

 104, 112-115 

 Exudation, from cambium, 148, 169, 

 172 

 from latex system, 227 

 from phloem, 135, 136, 147, 169, 

 170, 180, 186 

 direction of, 147, 186 

 distance moving, 135, 139, 147 

 effect of chilling on, 162 

 rate of, 162, 164, 165 

 probably abnormal, 169, 170, 172, 



178, 186 

 from xylem, 5, 6, 80n., 117-124 

 from young tissues, 169, 172 



F 



Fluorescein, amounts carried, 112 

 carried by living cells, 227 

 direction of movement, 187, 205, 



206, 208, 209, 213, 219 

 in phloem exudate, 180 



rate of movement, 183, 186, 204, 



207, 217 



transport of, 204-211, 213, 217, 

 219, 222, 227 



independent of carbohj'drate, 

 206, 211, 213 



as indicator of normal trans- 

 port, 208 



influence, of anesthetics on, 

 206, 222 

 of light on, 206 

 of temperature on, 206 

 of wilting on, 206 



Fruits, competition between, 240- 

 245 

 movement of solutes to, 9, 33-36, 



152, 250 

 nitrogen movement from, 242 

 nitrogen movement into, 243, 244 

 transport to, in darkness, 35, 36 



G 



Gradient, absorption against, 150, 

 166, 170, 171, 176, 196-198, 245 

 carbohydrate, 188-198, 218, 243- 

 245 

 hexose, 189, 190, 195 

 sucrose, 187, 189, 190, 195, 196 

 concentration or diffusion, 70, 144, 

 152, 175, 177, 187-203, 240- 

 243, 245, 247 

 and rate of movement, 194, 215 

 electrical, 187, 214, 216, 250 

 fluorescein in phloem, 205 

 nitrogen, 70, 192-194, 199-202 

 osmotic, direction of, 152-159, 

 166, 189, 219, 245, 248 

 steepness of, 150-159, 242, 245, 

 247 

 pressure, 146, 150-160, 166, 172, 



177, 209 

 reversal between mesophyll and 

 veins, 196 

 Gravity and distribution of solutes, 



248, 249 

 Growth, as controlled, by hormones, 

 130, 219 

 by translocation, 2, 3, 7, 8, 13, 

 26, 27, 33-35, 40, 131, 235- 

 237, 247 

 as influenced by continuity of 



cambium, 41 

 as a measure of translocation, 13, 

 26-29, 34, 35, 38-41, 44, 47 

 Growth substance (see Hormones) 

 Guttation, 7&-80w., 121, 122, 148 



H 



Hexose, fluctuations in, 189, 196 

 gradient, 189, 190, 195 



