SUBJECT INDEX 



453 



Fungus spores: induced in Alternaria solani cultures, 



377 

 Fzisarium lycopersici, 416 



Cralega, 30 



Galeopsis, 43 



Galinsoga, 325, 327 



Gantry crane: greenhouse lighting, 297, 300-304 



Gas residues in soil: toxicity to tomato plants, 176- 



177 

 Gas, artificial illuminating: diagnosis of tree and 



shrub injury, 178-179 

 Gas, illuminating, effects: on plants, 139-168 



on roots, 172-176 



toxic action in soil, 148-150, 172-180 



{See also Ethylene) 

 Gases: fumigation, 353 

 Gases effects: epinasty of leaves, 142-148 



on coloring and ripening of fruits, 158-159 



on growth inhibition, 150-155 



on rooting of plants, 160-164 



responses of plants to treatment, (See Ethylene) 

 Gases effects on plants: unsaturated carbon-con- 

 taining gases, 139-168 

 Gases, lethal: effects on plants and animals, 172-201 

 Gases, natural: constituents, 179-180 



toxicity to plants, 179-180 

 Gases, scrubbed: effects on plants, 175 

 Gases, toxic: effects on animals, 197-200 



effects on fungi and bacteria, 196-199 



effects on green plants, 196-199 



effects on plants and animals, 196-200 



effects on seeds, 196-199 

 Gases, unscrubbed: effects on plants, 17') 

 GauUheria, 90 

 Gentiana, 90 

 Gentiobioside, P-: formed in gladiolus corms treated 



with ethylene chloroh\drin, 247 

 Geranium, 43 

 Germination: dormant gladiolus corms, 240-241 



gladiolus cormels, 241-243 



laboratory slide-germination method of evaluat- 

 ing fungicides, 369-374 



use of chemicals for hastening sprouting of dor- 

 mant potato tubers, 231-240 

 Germination of seeds: after burial for various peri- 

 ods, 37-38 



carbon dioxide effects on lettuce seeds, 399-400 



Cotoneaster, 111 



Crataegus, 109-111 



growth substances effects, 418-420 



Impatiens balsamina, 123-126 



inhiVjitors, 44-45 



light effects on dormancy in seeds, 74-78 



oxygen effects, 47-48 



quick vitality test, 128-131 



seed coat effects, 46-47, 106-112 



stratification effects on seeds with non-dormant 

 embryos, 101-105 



Symphoricarpos orbiculatus, 108-109 



temperature effects, 86-123 



temperature effects on wild plants, 41-43 



trailing arbutus, 433—434 



tree peony, 113-117 



Viburnum, 113 



wild plants, 41-43 



with dormant embryos, 86-101 



with non-dormant embryos, 101-105 

 Germination of spores: Lycopodium, 434-435 



(See also Spore germination) 

 Germination, delayed: advantages to plants, 68 

 Geum, 325, 327, 340 

 Gladiolus: 212, 429, 430 



bigeneric hybrid, 430—431 



new fragrant hybrid, 430-4.31 



pollen storage, 429-430 



temperature effects on dormancy, 41 



Gladiolus corms: as affected by growth substances, 



212 

 Gladiolus dormant cormels: ethylene chlorohydrin 



effects on germination, 241-243 

 Gladiolus dormant corms: effects of ethylene chloro- 

 hydrin, 240 

 Gladiolus recurvus, 431 

 Gladiolus tristis, 431 

 Glass: ultraviolet transmitting, 319 

 Glomerella cingulata: 197 



effects of pentathionic acid, sulphuric acid and 

 hydrogen sulphide on germination of spores, 

 363-366 

 time and temperature effects on germination of 

 spores, 372 

 /3-Glucoside: formation by ethylene chlorohydrin, 

 246-247 

 formed in gladiolus corms treated with ethylene 

 chlorohydrin, 247 

 Glutathione: changes in dormant potato tubers 

 treated with ethylene chlorohydrin, 251-252 

 changes in relation to respiration rate, 249 

 Glycine soja, 332 

 Gompholobium , 30 

 Goodia, 29, 30 



Gossypium hirsutum: cell divisions in the epidermal 

 layer of the ovule subsequent to fertilization, 

 261-263 

 cell wall structure, 261-263 

 density of fiber mass, 261-263 

 general studies of fiber growth, 261-263 

 origin and sarly stages of elongation of fiber, 201- 

 263 

 Greenhouse: artificial lighting, 297, 300-309 

 CO2 supply in, 306, 307 

 controls for intermittent light, 305-306 

 lighting costs, 304, 309 

 Greenhouse, insulated: heated by Mazda lamps, 



304-310 

 Growth: importance of mother-tuber in growth of 



potato plant, 420-423 

 Growth inhibiting substances: germination of seeds, 



125 

 Growth inhibition: by growth substances, 216 

 gases effects, 150-155 



methyl ester of a-naphthaleneacetic acid vapor, 

 239-240 

 Growth inhibition in potato tubers: methyl ester of 



a-naphthaleneacetic acid effects, 397-398 

 Growth of plants: under artificial light, 293-340 

 Growth promoting substances: growing plants as 



test objects, 206-209 

 Growth promotion: (See Dormancy; Epinasty; 

 Germination; Growth substances; Hor- 

 mones; Rooting; Roots; etc.) 

 Growth regulators: (See Growth substances) 

 Growth substances: absorption and movement, 225 

 aerosol method of application, 220 

 as bud inhibitors, 216 

 comparative effectiveness of acids, esters and 



salts 226 

 for leaf modification, 209-211, 218 

 for producing epinasty, 209-210 

 formative effects, 220-225 

 formative effects on tobacco plants, 220-221 

 induction of adventitious roots, 209-215 

 light and dark effects, 225 

 list of physiologically active acids, 207, 209, 218, 



222, 223 

 methods of application to plants, 206-209 

 methods of upijlicalion to tomato flowers, 218- 



220 

 phenoxy acids, 200-215 

 vitamin Bi, 419-420 

 Growth substances effects: of mother-tuber on 

 daughter plant, 423 

 on plants, 204-226 



