CONTENTS 



Preface 



1 Flowering in Its Biological Framework 



2 The Many Response Types 



3 Ecology and The Flowering Process 



IX 



1 



11 



24 



4 The Low Temperature Promotion of Flowering 46 



5 Methods of Experimentation with Cocklebur 72 



6 Preparation for Response to Photoperiod 93 



7 Light and the Pigment 100 



8 Timing and The Flowering Process 127 



9 The Synthesis of Flowering Hormone 152 



10 The Movement and Action of the Flowering 



Hormone 1 84 



Appendix 205 



Note Added in Proof 216 



Selected Bibliography and Literature Cited 219 



Author Index 224 



Organism Index 226 



Subject Index ■ - 229 



