These links to Dr Deno's "Seed Germination: Theory and Practice" and the two supplemental books are free downloads at the USDA National Agriculture Library online site. I know this book is out of print and nearly impossible to find. I hope this information is useful.
Title: Seed germination, theory and practice.
Title: First supplement to the second edition of Seed germination theory and practice.
Title: Second supplement to Seed germination theory and practice.
***The moderator has updated the correct links, as they are now located in the legacy NALDC library. Feb 2019***
This is a excellent resource, thanks for posting this John!
I don't have the book, always wanted a copy, so its fantastic that it is now freely available online. I edited you alert regarding the site being down, as it is working now. Because of the importance of this topic, I am setting it to be a "sticky topic", a NARGS Forum term which means to pin the topic so that it always appears at the top of the Propagation topic.
You are welcome. ;)
Has anybody told Norm that his handbooks are up on the USDA site and that the links are posted in the NARGS forum? I'm sure he would get a kick out of it!
Mary and Chuck
I do not know Dr. Deno personally, it would be a pleasure to meet him. Please pass the word along to him with all of our thanks for writing such good references. I use them all the time.
Me too! Thanks to Dr. Deno for an essential reference and completely fascinating reading!
I have had the good fortune to meet Professor Norm Deno on a couple of occasions. Firstly, he arranged for me to give a talk to the Department of Horticulture, when visiting a cousin who was then Professor of Material Science at State College, PA (who played an integral part in the development of ultrasound equipment) during a lecture-tour in the mid-1980s. Secondly, I was driven across from Philadelphia, whilst being hosted by Joyce Fingerut in 1990.
Whenever I cover cultivation in my lectures I state that his books should be required reading for anyone taking a serious interest in seed germination. I learnt a lot from his seed germination experiments approached from the perspective of a chemist. Cannot be read from "cover to cover" at one go - even for those with a Scientific background but are well worth "dipping" into on a regular basis and persevering with, even if they appear "heavy going" initially. Full of gems of wisdom - and amusing comments about us botanists!
I regularly draw attention to his recommendation that the word "stratification" be abandoned and that it is not a period of "freezing" but "chilling" which some seeds require - most species from the Himalaya (at least after a period of dry storage) have no such "chilling" requirement and can be sown in Spring or early summer with perfectly good rates of germination.