Belle de Boskoop
ActiveMalus domestica (Suckow) Borkh. · Apple
FR
4 records
Variety traits
Apple Ploidy
Malus domestica (Suckow) Borkh.
A genetic parameter of the apple tree determined by the number of chromosome sets in cells, where the diploid set is 2n=34 and the triploid set is 2n=51. Ploidy directly influences yield, fruit weight, storage quality, and the regularity of bearing.
In the reference 479 varieties crop Apple, where this is mentioned in the description.
To determine the ploidy of apple trees, a cytological method of direct chromosome counting in vegetative bud meristems is used. In breeding, three main groups of cultivars are distinguished: diploids (2x), triploids (3x), and tetraploids (4x). The diploid chromosome number in apple trees is 34, while the triploid reaches 51 chromosomes.
Triploid apple cultivars are characterized by higher and more regular yields, reducing the alternate bearing typical of diploids. Triploid fruits usually have greater weight, better flavor, and improved storage quality. Furthermore, triploid trees often demonstrate greater vigor and enhanced self-fertility, while the breeding of such cultivars is often focused on combining fruit quality with resistance to apple scab.
General information about the subject — on the page Ploidy.
Varieties of Apple mentioned in the description
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Batulka
ActiveMalus domestica (Suckow) Borkh. · Apple
SI
2 records
Boskoopské červené
ActiveMalus domestica (Suckow) Borkh. · Apple
CZ
4 records
Boskoop Quast
ActiveMalus domestica (Suckow) Borkh. · Apple
NL
4 records
Blenheimská reneta
ActiveMalus domestica (Suckow) Borkh. · Apple
CZ
4 records
Boskop
ActiveMalus domestica (Suckow) Borkh. · Apple
SI
2 records
Boskoop rouge
ActiveMalus domestica (Suckow) Borkh. · Apple
FR
2 records
Boskopska lepotica
ActiveMalus domestica (Suckow) Borkh. · Apple
SI
2 records
Boskoopské
ActiveMalus domestica (Suckow) Borkh. · Apple
CZ
4 records
Bell de Boscop
ActiveMalus domestica (Suckow) Borkh. · Apple
SI
2 records
Alexander
ActiveMalus domestica (Suckow) Borkh. · Apple
NL
2 records
Bartolenka
ActiveMalus domestica (Suckow) Borkh. · Apple
SI
2 records
Altländer Glockenapfel
ActiveMalus domestica (Suckow) Borkh. · Apple
SI
3 records
Karmen
ActiveMalus domestica (Suckow) Borkh. · Apple
Wilmuta ISK
WithdrawnMalus domestica (Suckow) Borkh. · Apple
Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka
PL
2 records
Welbo
ActiveMalus domestica (Suckow) Borkh. · Apple
Information not available - Contact NL authorities
NL
1 record
Regal Gala ISK
WithdrawnMalus domestica (Suckow) Borkh. · Apple
Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka
PL
1 record
PRINCE JONAGOLD D'H
WithdrawnMalus domestica (Suckow) Borkh. · Apple
LIEFERINCKX SYLVAIN
BE
1 record
Ossekop
ActiveMalus domestica (Suckow) Borkh. · Apple
Information not available - Contact NL authorities
NL
1 record
Ochsenkopf
ActiveMalus domestica (Suckow) Borkh. · Apple
Information not available - Contact NL authorities
NL
1 record
JORAYCA
TerminatedMalus domestica (Suckow) Borkh. · Apple
BILSEN MARC & RIK*
BE
1 record
Hacnine
TerminatedMalus domestica (Suckow) Borkh. · Apple
T. MINEGISHI, H. WATANABE (JP)
FR
2 records
Grifer
Protection expiredMalus domestica (Suckow) Borkh. · Apple
J Bick Griffith (US)
FR
1 record
CHANTEGRISE
WithdrawnMalus domestica (Suckow) Borkh. · Apple
Institut National de la Recherche Agronomique (FR)/Gaec Chauvire Freres (FR)
FR
2 records