IS 4 12
ActiveCydonia Mill. · Quince
Kovtun Ivan Mykolaiovych, Drozdenko Radomyr Petrovych, Khodakivs`ka IUliia Borysivna, Matviienko Mykola Vasylovych,
10 August 2026
The rootstock belongs to the semi-vigorous or semi-dwarfing group, providing a 30–50% reduction in the growth vigor of grafted varieties compared to seedling rootstocks. The root system is characterized by strength and good anchorage, but young trees require support. Root frost resistance is down to -14°C.
The plant possesses resistance to crown gall, woolly aphid, nematodes, and pear wilt, and adapts well to calcareous soils with high pH. At the same time, sensitivity to fire blight and leaf spot is noted. Compatibility with most pears is good, but an interstock is required for certain varieties.
3 jurisdictions
Green indicates countries where the variety is listed in the national catalogue and its seeds are authorized for sale. Expired registrations are marked separately: the variety was previously admitted, but sale is no longer permitted.
Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified. This section will be available upon verification.
breeder code BA 29
A single variety may be registered in different countries under different names. All records are consolidated into one profile based on the breeder's code—an internal number that is identical for the variety across all registries.
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The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 16660002
№ 242873
№ 2003/6001
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Same species
Cydonia Mill. · Quince
Kovtun Ivan Mykolaiovych, Drozdenko Radomyr Petrovych, Khodakivs`ka IUliia Borysivna, Matviienko Mykola Vasylovych,
Cydonia Mill. · Quince
Cydonia Mill. · Quince
Cydonia Mill. · Quince
Cydonia Mill. · Quince
Nearby in the species list ADAMS, Eline 1, EM A, EM C, FM 2014, GEANT DE VRANJA, IFD 33, IS 4 12, MA, MC, Milleer