Contents 



V PHYSIOLOGICAL AND ANATOMICAL EFFECTS 



OF AUXIN APPLICATIONS 114 



Growth Effects Anatomical Effects 



Metabolic Effects Effects on Plant Constituents 



Vl FACTORS ALTERING EFFECTIVENESS OF 



AUXIN APPLICATIONS 137 



Absorption Translocation 



The Status of the Plant Environmental Factors 



\II THE CHEMICAL NATURE OF GROWTH 



REGULATORS 152 



Molecular Structure and Auxin Activity 

 Substances \Vhich Modify Auxin Effects 



Mil THEORIES OF THE MECHANISM OF AUXIN 



ACTION 175 



Molecular Reaction Theories 



Theories of Enzyme Effects 



Theories of Osmotic Effects 



Theories of Cell ^Vall Effects Toxic Metabolism 



PART TWO 



AUXINS IN AGRICULTURE 



IX METHODS OF APPLYING AUXINS AND THEIR 



PERSISTENCE IN PLANTS AND SOILS 189 



Solvents and Solutes Methods of Application 

 Auxin Persistence and Destruction 



X ROOTING 202 



The Physiological Basis for Rooting 

 Methods of Treatment Factors in Success 



XI PARTHENOCARPY 215 



The Physiological Basis for Parthenocarpy 

 Methods of Treatment Factors in Success 



