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Apple tree rootstock named ‘G.257’

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  • Publication Date:
    March 07, 2023
  • معلومة اضافية
    • Patent Number:
      PP35,016
    • Appl. No:
      17/589353
    • Application Filed:
      January 31, 2022
    • نبذة مختصرة :
      A new and distinct variety of apple tree rootstock Malus domestica x Malus robusta hybrid ‘G.257’ is described. The new variety is a semi-dwarfing rootstock that is resistant to fire blight (Erwinia amylovora) and crown rot (Phytophthora cactorum) and tolerant to the replant disease complex. The ‘G.257’ rootstock is useful in that it can be propagated clonally and used as a rootstock or root system for apple trees as well as for interstems of apple trees.
    • Inventors:
      Cornell University (Ithaca, NY, US); The United States of America, as Represented by the Secretary of Agriculture (Washington, DC, US)
    • Assignees:
      Cornell University (Ithaca, NY, US), The United States of America, as Represented by the Secretary of Agriculture (Washington, DC, US)
    • Claim:
      1. A new and distinct variety of apple tree rootstock named ‘G.257’ as herein described and illustrated.
    • Current U.S. Class:
      PLT174
    • Patent References Cited:
      PP7197 March 1990 Luby et al.
      PP22228 November 2011 Brown et al.
      PP23337 January 2013 Cummins
      PP24073 December 2013 Cummins


    • Other References:
      Mazzola, (1998). “Elucidation of the microbial complex having a causal role in the development of apple replant disease in Washington,” Phytopathology, 88(9):930-938. cited by applicant
      Unpublished U.S. Appl. No. 17/589,324, filed Jan. 31, 2022 titled “Apple Tree Rootstock Named ‘G.484’,”. cited by applicant
      Unpublished U.S. Appl. No. 17/589,341, filed Jan. 31, 2022 titled “Apple Tree Rootstock Named ‘G.66’,”. cited by applicant
    • Primary Examiner:
      McCormick Ewoldt, Susan
    • Attorney, Agent or Firm:
      Morrison & Foerster LLP
    • الرقم المعرف:
      edspgr.PP035016