SUBJECT INDEX 



Abnormal flowers 70 



Absolute (qualitative) requirement 



11-2, 17-8 

 Absorption spectra 101-4 

 Act of induction 87, 89, 178, 193 

 Action spectrum 101, 103-4, 122, in 



pigweed 121 

 Active buds 194 

 Activity of animals 129 

 Adaptive enzyme 181-2 

 Adenosine 171 

 Age and flowering 14, 21, 77 

 Ageing 95 

 Agriculture 1 

 ^-Alanine 143 

 Alo-phycocyanin 108 

 Amateur study 72 

 Amino acids 182, antimetabolites 



171-2, 174 

 Annuals 9-10, 50 

 Antagonism theory 63 

 Anthocyanin 109, 111, 196 

 Antiauxins 171, 179 

 Antimetabolites 167-80, 182, 197 

 Apical dominance 202 

 Applied chemicals 35, 47, 57, 77, 83-5, 



166-80, 182 

 Arrangement of plants on the bench 



78-9 

 Ascorbic acid 99 

 Aspartic acid 143 

 Assimilates, translocation 156 

 Astronomical sunset 34 

 ATP (adenosine triphosphate) 99, 173, 



182 

 Autocatalysis 190-1 

 Auxins 57, 63, 126, 176-80, 183, 187, 



195-6, and hormone translocation 



179 

 Axillary buds 110 

 4(6)-Azauracil 172 



B 



Benzimidazole 171 



Biennials 10, 48, 50, 53 



Bioassay 195, dwarf corn 63 



Biochemistry 2, 7, 65 



Biological: clock 127, night 34, oscil- 

 lator 141, time measurement 127-8 



Biology 1 



Bioluminescence 129 



Blasted flowers 70 



Bohing 67 



5-Bromo-3-isopropyl-6-methyl uracil 

 172 



Bud 174-5, 182, 194-5, 197-8, 202 



Bulb formation 109, 130 



Bulbous plants 67, 68, 71 



Cancer 8, 197 



Carbohydrate-nitrogen ratio 63 



Carbon dioxide: fixation in succulents 

 109, partial pressures 180 



Carotene 101, 109, 111 



Carpellate flowers 192 



Carts 77 



Categories of response type 21 



Caulescent plants 59 



Celestial navigation 128, 131-2 



Cell growth and diff"erentiation 8-9, 

 196-204 



Central zone 199-200 



Chemicals, applied in flowering studies 

 35, 47, 57, 77, 83-5, 166-80, 182 



Chlorophyll 101, 108, 110, synthesiz- 

 ing mechanism 109 



Chloroplasts, turning 109 



8-Chloroxanthine 171 



Chromosome 152 



Circadian rhythms 128-9, 130, 136, 

 140 



Civil twilight 34 



Classification system 14 



Cleistogamy 109 



229 



