1969 American Journal of Botany: Dormancy Factors in Iris (Iridaceae) Seeds

https://www.jstor.org/stable/2440847?Search=yes&resultItemClick=true&searchText=Iridaceae&searchText=Iris&searchUri=%2Faction%2FdoBasicSearch%3Fgroup%3Dnone%26amp%3Bacc%3Doff%26amp%3Bwc%3Don%26amp%3Bfc%3Doff%26amp%3BQuery%3DIridaceae%2BIris&ab_segments=0%2Fdefault-1%2Frelevance_config_with_defaults_duplicate&refreqid=search%3Abcd0bd23f432b0a3fbb7363216090abb&seq=1#page_scan_tab_contents

Abstract

Utilizing a newly developed radish seed bioassay, it has been demonstrated that Iris seed dormancy is caused by water-soluble inhibitor(s). Leached Iris seeds germinate freely when planted in soil without previous chilling. The inhibitor(s) can prevent germination of representative species of both monocotyledonous and dicotyledonous seeds.

-- BobPries - 14 Jan 2019