Webinar 29 "The Life Cycle of Bearded Iris" by Chuck Chapman

This is a recording of AIS Webinar #29 (11-09-2022) "Life Cycle of Bearded Iris." by Chuck Chapman. “Life Cycle of Bearded Iris” The webinar covers pollination, forming seeds, breaking chemical and cold dormancy, growing out seeds, maturity, summer dormancy, bud set, growth of increases, and winter dormancy. Also includes some information relevant to biology of rebloom. About the Presenter Chuck Chapman lives in Ospringe, just north of Guelph, Ontario Canada in an agricultural zone 4. He is the owner of chapmaniris.com and has been hybridizing and selling iris for over 30 years. Some of his iris introductions ( ie ‘Forever Blue’ and ‘Blueberry Tart’) are sold around the world. Chuck has had an interest in plant breeding and genetics from an early age. His first hybrid was an apple tree he planted in 1949, and currently still has a clone of it. Chuck has been studying plant breeding and genetics since 1960, and conducting experiments and studying iris biology since then. After a degree in Experimental Psychology, Chuck worked as a Research assistant, then in clinical psychology working with children and families. For the past 10 years, Chuck has been taking a part time degree in Plant Science at the University of Guelph, specializing in Molecular Genetics and Plant Biotechnology. Links: The American Iris Society: http://www.irises.org/ Social Media:   / theamericanirissociety     / tweetais     / theamericanirisociety   https://theamericanirissociety.blogsp... Timeline 00:00 Intro 02:10 The Genetic Controls of Flowering 03:10 Where is Ospringe, Canada? 04:07 Chuck's greenhouse 06:07 Cultivating cold-hardy irises 09:00 Chuck's seedlings 10:40 Iris genes 11:24 Hybridizing: pod parent vs pollen parent 13:26 Making crosses 16:15 Bee pods 17:25 Seeds 18:25 Germination inhibitors 20:00 Stratification 21:08 Seed germination 22:05 Planting seedlings 23:04 Plant maturity 25:18 Apical dominance 27:00 Flower development 27:55 Flowering timing 29:19 Dormancy 30:20 Key Biological Process 32:22 Peak flowering on TBs 34:27 Reblooming trigger 38:05 The case of I. aphyla 40:35 Vernalization: chill hours 44:55 Q & As