DELAYED GERMINATION OF PRUNUS AVIUM AND SOPHORA MICROPHYLLA^©

I would like to draw attention to Norman C. Deno, Professor Emeritus of Chemistry from Penn State University, and his 2nd ed. of Seed Germination Theory and Practice. His experiments cover 145 Families, 805 Genera, and about 2500 species.
He states, “Every species has some mechanism for delaying germination until after the seed has been dispersed.
The challenge in germinating seeds is to overcome these delay mechanisms.
With 95% of the species studied, the delay mechanisms are chemical in nature.
Typically these chemical blocking systems are destroyed by drying, light, or varying temperature cycles.

Proceedings of the International Plant Propagators Society – 2012

E.J. Appleton

https://doi.org/10.17660/ActaHortic.2013.1014.10