Note 67 — A DEFENCE OF MENDEL’S PRINCIPLES OF HEREDITY.
Reading edition
Wrinkling must of course be distinguished further from the squaring due to the peas pressing against each other in the pod.
In connexion with these considerations I may mention that Vilmorin makes the interesting statement that most peas retain their vitality three years, dying as a rule rapidly after that time is passed, though occasionally seeds seven or eight years old are alive; but that wrinkled peas germinate as a rule less well than round, and do not retain their vitality so long as the round. Vilmorin-Andrieux, Plantes Potagères, 1883, p. 423. Similar statements regarding the behaviour of wrinkled peas in India are made by Firminger, Gardening for India, 3rd ed. 1874, p. 146.