842 



Subject Index 



Gibberellic acid {continued^ 

 K, 661 

 light, 649 



sucrose and starvation, 650 

 lAA oxidase on Pisum seedlings, 606 

 K, 661 

 Ka, 605 



light intensity, 647, 783 

 MH, inhibition of shoot growth, 602 

 NAA, 602, 646 



Zea mays, log response in, 493 

 photosynthesis, 580, 581, 582, 584 

 preparation of, 466 

 retardation of leaf senescence, 329 

 synergism with lAA, 611, 613, 623, 651 



tissue cultures, 679 

 Zinnia elegans, 606 

 Gibberellin; see also Gibberellic acid, 18 

 103, 422 

 acceleration, 531, 532 

 activation of, 522, 524 

 activity in 



cell multiplication, 521 

 morphogenesis, 543 

 stem elongation, 521 

 auxin mediation of activity, 589 

 biological evaluation, 505, 506, 507, 



508, 509 

 chemical structure and activity, 503 

 chromatography of Phaseoliis factors, 



477 

 derivatives and related compounds 

 activity of, 513, 514, 515, 516 

 definition, 490 

 history, 465 



long-day plants, effect on, 524 

 presence in dwarf Zen, 498 

 florigen, constituent of, 524 

 protein synthesis, effect on rate, 524 

 reversal stem growth radiation inhibi- 

 tion, 551, 552 

 short-day plants, effect on, 524 

 spectra (infared), gibberellins and 



methyl esters of, 486 

 stimulation, 521, 522, 523 

 visible radiation, inactivation bv, 548 

 and Zen mays, 492, 494, 495, 496, 497, 

 498 

 Gingho biloba, 679, 692 

 Glucose-1-phosphate, 649 

 Glucose-6-phosphate, 649 

 L-glutamic acid, 605 

 L-glutamine, 650 

 Glutathione, 172, 701 

 Glycine, 605 

 Glycine niax, 58 



Gordon-Weber reactions, 193, 194, 196 

 Gossypium = cotton, 239, 240, 242 

 and ethylene-C" 

 absorption, 752 

 fixation, 767 

 translocation, 715, 767 

 Gossyjjiuni hirsiitnm, 560, 561 

 Grass node, geotropism of, 327 

 Group A, maize extract 

 fractionation, 671 

 promotion cell division, 669, 673 

 Group B, maize extract 

 auxin content, 673 

 promotion cell elongation, 670 

 Group C, maize extract, promotion cell 



division, 673 

 Guaiacol as substrate, 620, 622 

 Guillotine, for cutting root sections, 168 

 Gymnogrammoids, 710 

 Gynophore of Arachis 



basipetal auxin transport, 403 

 rate of transport lAA, 399 



H 



Habituated tissues, 691, 692 

 H-bonds at surface cytoskeleton mem- 

 brane, 453 

 HCN = ^-(indole-3-)hepanonitrile 

 Heat coagulability, 355, 360 

 Helianthus = sunflower, 43 



coumarin stimulation, 737, 738 



crown gall tissues, 680, 682 



rate of auxin transport, 403 

 Helianthns anmiiis, 551, 678 

 Heliaiithus test of TJ fractions, 695 

 Helianthns tuberosiis == topinambour 



tuber tissue synergism, 668 

 lAA and coconut milk, 693 

 lAA and TJ, 691, 693 

 2-Heptadecanol, 62 

 Herbicidal properties 



phenoxyalkyl carboxylic acids, 804 



phenyl carboxylic acids, 804 

 1-Hexadecanol, 61 



5-HIAA = 5-hydroxyindole-3-acetic acid 

 Hibiscus syriacus tissue culture, 679 

 L-histidine, 605 

 Histograms 



of root growth, 174 



of stem growth, 174 



of wheat cylinder test, 80, 83, 86, 88 

 H/L factor, 431 



H2O2 interaction with lAA, pH depend- 

 ency, 209 

 8-HOQ = 8-hydroxyquinoline 

 Hordeum vulgare, 551 



Hormonal mechanism of growth inhibi- 

 tion by light, 543 

 Hormone, 18 



growth regulating, definition, 725 

 Hormones 



excretion of, by algae, 25 



plant growth, 95 



role of, on effects of radiation, 548 



sex, 19 

 Horseradish peroxidase, 150, 152, 206 

 5-HTRAM = 5-hydroxytryptaniine 

 5-HTRPH = 5-hydroxytryptophan 

 Humectants, in sprays, 798 

 Hyascyamus niger var. bierinis, 576 

 Hydrazines as antioxidants, 345 

 Aipha-hydrogen atoms, 460 

 Hydrogen peroxide 



effect on induction phase, 200 



and hydrazine, 350 



saturation of peroxidase, 202 

 Hydrolase action, 84 

 Hydroquinone, 154 

 Hydroquinone p-benzoquinone, 160 

 Hydroxyanthranilic acids, 214 

 [(5 Hydroxycarvacryl) trimethyl am- 

 mcmium chloride, 1-piperidine car- 

 boxylatel= Amo-1618 



action of, 567 



growth regulation by, 784 



inhibition by, 572 

 5-Hydroxyindole-3-acetic acid = 5-HIAA, 



181 

 L-hydroxyproline, 605 

 8-Hydroxyquinoline = 8-HOQ, 364, 368 

 5-Hydroxytryptamine = 5-HTRAM, 181 

 5-Hydroxy tryptophan = 5-HTRPH, 181 



I 



I = inhibitor of lAA oxidase 

 lA = indole-3-aldehyde 

 lAA = indole-3-acetic acid 

 lAAL = indole-3-acetaldehyde 

 lAAld. = indole-3-acetaldehyde 

 lAAld-NaHSOs, 45 



