346 



Index 



Destruction of auxin, 14, 85 



action spectrum, 86 



by lanolin, 191 



by micro-organisins, 199 



during diffusion, 14 



during extraction, 15 



heat, 92 



in soils, 199 



inhibition of, 89 



light, 74, 85 



oxygen role, 86 



respiratory poisons, 199 



test for, 48, 50 



x-ray effects, 92 

 Desoxyribose nucleic acids, 132 

 Detasseling, 260 

 Detergents, 139, 191, 286 

 Development, embryo, 304 



fruit, 108 

 Diaminopurine, 105 

 Dichloroanisole, 167, 171, 259 

 Dichlorophenol, 91, 190 

 Dichlorophenoxyacetic acid, 11, 42, 168 



color test for, 48 



epinasty, 174 



flowering effect, 256 



fruit drop control, 244 



herbicide, 275 



leaf repression effects, 44 



micro-organism effects, 199 



morphological effects, 120 



movement, 142, 144 



persistence, 124, 194 



Rf values, 51 



solubility, 190 



starch hydrolysis, 130 

 Dichlorophenoxyethylbenzoate, 285 

 Dichlorophenoxyethylsulfate, 285, 290 

 Dichlorophenoxyisobutyric acid, 167 

 Dichlorophenyloctanoic ether, 285 

 Diesel oil, 140 

 Diethanolamine, 251, 283 

 Diethyl dithiocarbamate, 16 

 Diethyl ether, 15 

 Differentiation, 95, 106, 116, 304 



epidermis, 30 



role in selectivity, 120 



root primordia, 202 

 Diffusible auxin, 7, 14, 64 

 Diffusion coefficient, 54 



salts influence, 28 

 Dinitrophenol, 129, 182, 184, 298 

 Dimedon aldehyde test, 78 

 Dimethylaminobenzaldehyde, 53 

 Dormancy, 102 



ash, 266 



carrot, 269 



chemical control, 172, 263, 264, 268 



factors in, 65, 102, 263, 264, 266, 271 



oat, 267 



onion, 268 



potato, 263, 266 



trees and shrubs, 270, 271 

 Disease, chocolate spot, 299 

 Disease resistance, 300 

 Dissociation, 26 



constants, 69, 159 

 Dissolving auxins, 190 

 Distribution of auxin, 60 



table of, 63 

 Dithiocarbamate, diethyl, 16 

 Droplet size, 280 

 Dry ice, 17, 18 

 Dust applications, 246 

 Dwarfing, 101 



Effects, correlative, 9 



Eggplant, 221 



Elasticity of cell wall, 185 



Electrophoresis, 54 



Embryo, auxin source, 76, 110, 243, 252 



development, 304 

 Emulsion, lanolin, 191 

 Emulsifying agents. 139 

 Endocarp, 221 

 Endodermis, 119 

 Endosperm, 234 



auxin source, 243 

 Enzyme, adaptive, 91 



auxin formation, 16, 76 



responses, 130, 181 



Schardinger, 78 

 Eosin, 91 



Epidermis differentiation, 30 

 Epinasty, 58, 121, 152, 218, 228, 236, 285, 

 299, 303 



agents, 5, 121, 174, 219 



anti-auxin effect, 169 



auxin activity and, 122 



auxin assay use, 47 



bean, 122 



Kalanchoe, 121 



role of amino acids, 135 



root formation, 203 



tobacco, 121, 174 



tomato, 121, 174 

 Error, standard, 26 

 Ester, thiol, 180 

 Esterase, pectic, 300 

 Esters, 158 



absorption of, 141, 284 



dormancy effect, 264, 268 



