US4678PExpiredUtility

Apple rootstock tree

Assignee: UNIV MICHIGAN STATEPriority: Nov 5, 1979Filed: Nov 5, 1979Granted: Mar 31, 1981
Est. expiryNov 5, 1999(expired)· nominal 20-yr term from priority
42
PatentIndex Score
3
Cited by
0
References
1
Claims

Abstract

This apple rootstock originated as a single seedling selected from a group of seedlings obtained from open-pollinated Malling 9 rootstock. It was chosen because of its dwarfing characteristics. It has been increased by vegetative propagation, such as stooling, and by soft- and hard-wood cuttings. Also, this clone is compatible with commercial apple cultivars.

Claims

exact text as granted — not AI-modified
I claim: 
     
       1. A new and distinct variety of apple tree referred to by the cultivar name MAC-9 and substantially as herein shown and described characterized particularly by its improved ability to serve as a rootstock for grafting of apple tree cultivars to produce dwarf or semi-dwarf apple trees which are early bearing, have a strong graft and have a well anchored root system without root shoots.

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