232 



THE FLOWERING PROCESS 



Leaf: area of 160, effects in 174-5, 

 enlargement 109, growth 159-62, 

 197, hormone destroyed in 187, 195, 

 index 88, length 160, removal 157-8, 

 response 97, 153, 182, shape 94, 

 size 77, sun or shade 94 



Life cycles of animals 1 30 



Light: natural 25-7, quality 13, 25, 

 quanta 32, source 81, 102 



Light-dark cycles 139 



Light intensities: biological responses 

 28, greenhouse 72, inhibit flowering 

 28, known to control flowering 13, 

 twilight 30-34 



Limit of rod or cone vision 28 



Living contact in grafting 1 54 



Location of the clock 1 50 



Logarithm of light intensity 29 



Logarithmic: concentration series of 

 solutions 83-5, growth 95 



Long-day plants 4-5, 11, 16-7, 59, 

 212-4 



Long-short-day plants 12, 17, 215 



M 

 Magnetic pole 1 50 

 Maleic hydrazide 172 

 Malonic acid 1 67 

 Maturation 95 

 Mature stage 94 



Measurement of flowering 86-92 

 Meristem 52, 97, 197, 199, 202, 216 

 Metabolic removal of hormone (see 



destruction, hormone) 164-5, 178 

 Metabohte 167-80 

 Metamorphosis 130 

 Methionine 171 

 Methods of experimentation 72 

 a-Methyl methionine 171 

 Migratory cycles 131 

 Mineral nutrition 1 3 

 Minimal age 93 

 Mitosis 130 

 Moonlight 28, 118 



Morphology 1, of transformation 199 

 Morphogenesis 2, 8, 152, 197, 199 

 Movement of plant organs 128 

 Multiplication of the response types 

 16 



N 



Naphthaleneacetic acid (NAA) 171, 

 177 



Narcotics 151 



Naringenin 57 



Natural: light intensities and flowering 

 27, light quahties 25, photoperiods 

 and flowering 34, selection 43, tem- 

 peratures and flowering 24 



Nervous impulse 153 



New American Farm Book 48 



Night lengths 116, 155, 158-9 



Nitrogen 77 



Nodes to the first flower 88 



Non-conformist 45 



Non-inductive 17-8 



Notebook 86 



Nuclei 199 



Nucleic acid 174, 178, 182, 186, 216-8 



Nucleotide 58 



Nucleus 150-1 



Number of: cycles 38, 181, flowers 88, 

 leaves 88 



Nutrition: ageing 95, theory 47-8, 153, 

 flowering of cocklebur 76 



Oceans 27 



Optimal temperatures 68 



Orotic acid 168, 171-2, 175 



OsciUating timer 134, 139, 217 



Overvemalization 54 



Oxygen, need for in vernalization 56 



Para-fluorophenylalanine 171, 174 

 Parallel evolution 42 

 Pattern in gibberellin action 59 

 Pendulum 136 

 Peptide 174, 182 

 Percentage of flowermg plants 88 

 Perennials 10, 193 

 Persistent rhythms 128 

 Phasic theory 49, 64 

 Phenylalanine 171 

 Phosphorus 77 

 Photochemistry 100 

 Photoperiodism 6, 16, 20, 43, 48, 128, 

 130, pigment 102 



