Rooting Hormone Overview:

Comparison of K-IBA with Hortus IBA Water Soluble Salts:
Comparison of Two Water-soluble Forms of IBA for Rooting Cuttings
Dr. Eugene Blythe, SNA Research Conference 2013

Overview of Cutting Propagation (1997)
Kevin Hudson

What are Auxins?
Plant Hormones Info: the nature, history and biosysnthesis

Root Regeneration:

Root Regeneration of Rose Plants as Influenced by Applied Auxins (1986)
Dr. H. W. M. Fuchs

Stenting:

Propagation of Roses by Stenting: Rooting Cuttings and Grafting at the Same Time
Hortus USA

Stenting Roses- Effects of IBA application and the types of cuttings (2015)
World Journal of Agricultural Sciences

Grafting:

Rooting Hormones may Increase Grafting Success (1997)
Dr. James N. Cummins

Identification of IBA as a Natural Rooting Substance:

Indole-3-butyric Acid in Plants: Occurrence, Synthesis, Metabolism and Transport (1993)
Dr. E. Epstein and Dr. J. Ludwig-Müller

Identification of Indole-3-butyric Acid as an Endogenous Constituent of Maize Kernels and Leaves (1989)
Dr. E. Epstein, Dr. K. Chen, and Dr. J. D. Cohen

Special Techniques:

Blueberry Studies on propagation using IBA (two thesis)

Improve growth of rooted plants

Apply Rhizopon solutions to bare roots of transplants to improve root regeneration

Stimulate plants cutting which are difficult to root
Use Rhizopon to stimulate root growth during air layering

You can mix Rhizopon solutions with other growing agents
How to mix fertilizers with Rhizopon solutions

The use of certain growing agents during initial root formation can induce a negative rooting effect

Improving Plant Propagation:

Optimizing the Water Relations of Cuttings During Propagation
Dr. F. T. Davies, Jr.

Stimulation of Bud and Shoot Development of Rieger Begonia Leaf Cuttings with Cytokinins (1980)
F. T. Davies, Jr. and Dr. B. C. Moser

Propagation of Blueberry by Cuttings and Tissue Culture

"Cloning" IS Plant Propagation from Cuttings!

Optimizing the Water Relations of Cuttings During Propagation (2005)
Dr. F. T. Davies, Jr.

Use Rooting Hormone or Eat Ice Cream?
Ball Floral's Grower Talks (with permission)
Reasons to use Hortus IBA Water Soluble Salts for rooting cuttings

Propagation of Challenging Plants:Creating a System that Works
Jim Johnson

Foliar Application of Rooting Hormone
Brian Decker

Improving Tissue Culture Plantlet Transplanting in the Fourth and Fifth (Greenhouse) Stage Production
Hortus USA

The Most Important Research on Foliar Applied Aqueous IBA Solutions:

Osteospermum "sweet yellow". Spray Drip Down using
Hortus IBA Water Soluble Salts solutions Multiple application of foliar solutions by Dr. A Hammer

A Histological and Physiological Analysis of Adventitious Root Formation in Juvenile and Mature Cuttings of Ficus Pumila L. (1978)
Dr. F. T. Davies, Jr.

The Physiological Basis Of Adventitious Root Formation (1988)
Dr. F. T. Davies, Jr., and Dr.H. T. Hartmann

Growth Regulator Effects on Adventitious Root Formation in Leaf Bud Cuttings of Juvenile and Mature Ficus pumila (1980)
Dr. F. T. Davies, Jr. and Dr. J. N. Joiner

Shoot RNA, Cambrial Activity and Indolebutyric Acid Effectivity in Seasonal Rooting of Juvenile and Mature Ficus Pumila Cuttings (1984)
Dr. F. T. Davies, Jr.

Historic View of Plant Propagation from Cuttings

Contributions from Boyce Thompson Institute earliest articles on plant propagation from cuttings using rooting hormones

One of the earliest research on Root Promoting Substances
Comparative activity of root-inducing substances and methods for treating cuttings (1939)
A.E. Hitchcock and P.W. Zimmerman

The Nursery Book, a complete guide to the multiplication and polination of plants (1891)
Pages from the book relating to propagation rooting plants from cuttings, This book was writtern before discovery of the plant rooting substances.
L. H. Bailey

The Most Important Research on Foliar Applied Aqueous IBA Solutions:

A Histological and Physiological Analysis of Adventitious Root Formation in Juvenile and Mature Cuttings of Ficus Pumila L.
Dr. F. T. Davies, Jr.

The Physiological Basis Of Adventitious Root Formation
Dr. F. T. Davies, Jr.

Growth Regulator Effects on Adventitious Root Formation in Leaf Bud Cuttings of Juvenile and Mature Ficus pumila
Dr. F. T. Davies, Jr.

Rooting of Carnation Cuttings (using foliar methods)
David W. Cheever

Auxins and the Pathways for Foliar Applications
Joel Kroin

Articles presented at meetings the International Plant Propagators Society (published in the IPPS Combined Proceedings):

Auxin Application via Foliar Sprays (2007)
Samuel Drahn, Bailey Nurseries

Advances using Indole-3-butyric Acid (IBA) dissolved in water for rooting cuttings, transplanting and grafting (1992)
Joel Kroin

Propagate Plants from Cuttings Using Dry-Dip Rooting Powders and Water-Based Rooting Solutions (2008)
Joel Kroin

Propagation of Plants From Cuttings Using Rooting Solutions by Foliar Methods (2009)
Joel Kroin

Propagation of Cuttings Using Foliar Applied Indole Butyric Acid in Aqueous Solutions at or After Sticking (2010)
Joel Kroin

How to Improve Cuttings Propagation Using Water-Based Indole-3-Butyric Acid Rooting Solutions (2011)
Joel Kroin

Methods and Tips to Use Aqueous (Water Based) IBA Rooting Solutions (2012)
Joel Kroin

Development and Application of Foliar Applied Rooting Solutions (2014)
Joel Kroin

On the Development of Foliar Applied Rooting Solutions (2014)
Joel Kroin

Propagate Plants from Cuttings using Foliar Applied Aqueous (water based) IBA Rooting Solutions: Tips- Do's and Don'ts (2014)
- Presentation Power Point (pdf)
Joel Kroin

Propagation Techniques for Roses and Many Other Plants Rooted from Cuttings (2016)
Joel Kroin

Improving Blueberry Propagation in the Tissue Culture Green House Stage (2016)
Joel Kroin

Propagation of Roses by Stenting -rooting and grafting at the same time (2016)
Joel Kroin

Use Rooting Hormones, or Not? Multiple Applications May Be Best (first edition) (2017)
(second edition) (2018)
(IPPS presentation) (2017)
Joel Kroin

Joel Kroin (scientific articles):
Follow on Academia.edu

EXCLUSIVE DOWNLOADS

F.W. Went's research on the natural root forming substance
In 1928 Fritz W. Went published his doctorial thesis "Wuchsstoff und Wachstum" Growth-substance and growth. Went's thesis describes the theory of natural substance production and a method, 'bioassay', to determine the substance.

Wuchsstoff und Wachstum (Growth-substance and growth) (1928)
Dr. F. W. Went
Original thesis scan with English translation PDF (large file)
English translation text (no graphics): Word, WordPerfect, PDF
Original German text (no graphics): Word, WordPerfect, PDF

This Week's Citation Classics: Went F W. 'Wuchsstoff und Wachstum' (Growth-substance and growth. (1985)
F. W. Went

The first article published identifying the natural root forming substance (IAA, auxins):
Following up with "Wuchsstoff und Wachstum", Went joined Kenneth Thimann at Cal Tech, In 1934 they discovered the natural rooting substance and related chemical compounds, now called 'auxins'.
On the Chemical Nature of the Root Forming Substances (1934)
Dr. K. V. Thimann and Dr. F. W.Went

Phytohormones
The first book on the discovery of root promoting substances, the auxins (1937):
Phytohormones (downloads from Archive.org)
Download (large file pdf)
Download (small file with text recognition, PDF)
Dr. K. V. Thimann and Dr. F. W. Went