QBARS - v19n3 Inheritance of Indumentum

Inheritance Of Indumentum

David Leach, moderator of the "Rhododendron Round Table" at the Annual Meeting, had his own contribution on the subject of inheritance of indumentum on rhododendron leaves. It was summed up in a slide as follows:

( Catawbiense var. album x yakushimanum ) x yakushimanum = (non-indumented x indumented) x indumented

gene inhertiance of indumentum
non-indumented        indumented
Actual: 98 seedlings total
72 non-indumented
26 indumented

Conclusion: indumentum is controlled by two genes, non-indumented being dominant.