US Plant Patent PP10745
M9-RN8
Apple tree named `M9-RN8`
PUBLIC DOMAIN
Patent expired January 5, 2016. This plant is in the public domain — anyone may propagate and sell it.
No term adjustment or disclaimer is recorded against this patent, so this is the full statutory term — twenty years from the filing date.
The record
- Patent number
- PP10745
- Filed
- December 22, 1992
- Granted
- January 5, 1999
- Expires
- January 5, 2016
- Assignee
- RENEE NICOLAI N V FRUITBOOMWEK
- Inventor
- NICOLAI RENE
Abstract
This invention relates to a new and distinct apple tree rootstock clone which is useful as a size-controlling rootstock. The new clone originated as a mutation of Malling 9 (M9), an unpatented dwarfing apple rootstock, Standard growing apple cultivars propagated on this new rootstock are approximately 70 % of the size of like apple trees growing on apple seedling rootstocks. In the stoolbed the clone produces few lateral limbs, large round to oval leaves with broadly acute tips and possesses a pronounced, profuse blooming characteristic. The clone produces a larger number of rooted plants in the stoolbed.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
What is claimed is: 1. A new and distinct apple tree clone, a sport of the Malling 9, referred to by the cultivar designation `M9-RN8`, substantially as herein shown and described, characterized particularly by its ability to serve as a rootstock for grafting of apple tree cultivars to produce dwarf apple trees and by its ability to rot very readily in the stoolbed with very little lateral branching and produce high quality stoolbed rootstock plants for nursery use.
Read the full patent: US Plant Patent PP10745 in full — the complete specification, every figure, and the file history.