Early star
ActivePrunus avium (L.) L. · Sweet cherry
Silviero Sansavini and Stefano Lugli, University of Bologna
Variety traits
Self-fertility in sweet cherry
Prunus avium (L.) L.
The ability of sweet cherry cultivars to set fruit when pollinated with their own pollen. The trait is evaluated based on the percentage of fruit set and the presence of specific S-gene alleles.
In the reference 510 varieties crop Sweet cherry, where this is mentioned in the description.
The evaluation of sweet cherry self-fertility is based on comparing the fruit set percentage from self-pollination with the results of open pollination, as well as on the molecular genetic identification of self-incompatibility S-gene alleles (from S1 to S16). The primary quantitative indicator is the percentage of fruit set, defined as the ratio of developed fruits to the number of pollinated flowers.
Cultivars are classified as highly self-fertile if their fruit set under self-pollination exceeds 50% of the level observed under open pollination. An example of a high index is the 'Stella' cultivar with a fruit set of approximately 93.9%. Partially self-fertile cultivars show results around 10%, while the vast majority of classic cultivars are self-sterile and practically do not form fruit without the presence of pollinators.
The self-fertility trait determines orchard design strategy, as self-sterile cultivars require the selection of genetically compatible pollinators with overlapping bloom periods. The use of self-fertile genotypes ensures crop stability under adverse weather conditions that limit pollinator insect activity, although cross-pollination further enhances the qualitative and quantitative parameters of fruit production.
General information about the subject — on the page Self-fertility.
Varieties of Sweet cherry 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.
Starking Hardy Giant
ActivePrunus avium (L.) L. · Sweet cherry
SI
6 records
Early Van Compact
ActivePrunus avium (L.) L. · Sweet cherry
ES
FR
5 records
Starkrimson
ActivePrunus avium (L.) L. · Sweet cherry
Floyd Zaiger (US)
FR
IT
3 records
KSG 03 A
ActivePrunus avium (L.) L. · Sweet cherry
DE
6 records
KSG 19 A
Application submittedPrunus avium (L.) L. · Sweet cherry
Hilmar Gräb
DE
3 records
KSG 24 A
ActivePrunus avium (L.) L. · Sweet cherry
DE
6 records
Mariant
ActivePrunus avium (L.) L. · Sweet cherry
NIES MARVIN
FR
5 records
Petrus
ActivePrunus avium (L.) L. · Sweet cherry
Sandor Brozik - János Apostol
HU
4 records
Noire de Meched
ActivePrunus avium (L.) L. · Sweet cherry
FR
6 records
Anu
ActivePrunus avium (L.) L. · Sweet cherry
Heljo Jänes 100%
EE
4 records
Arthur
ActivePrunus avium (L.) L. · Sweet cherry
Estonian University of Life Sciences Institute of Agricultural and Environmental Sciences Polli Horticultural Research Centre
EE
4 records
Lala Star
ActivePrunus avium (L.) L. · Sweet cherry
Silviero Sansavini^^^Stefano Lugli
Polli rubiin
ActivePrunus avium (L.) L. · Sweet cherry
Estonian University of Life Sciences Institute of Agricultural and Environmental Sciences Polli Horticultural Research Centre
EE
4 records
13S-24-28
ActivePrunus avium (L.) L. · Sweet cherry
Agriculture & Agri-Food Canada, Summerland
SPC106
ActivePrunus avium (L.) L. · Sweet cherry
WILLIAM DAVID LANE
Royal Apache
Application submittedPrunus avium (L.) L. · Sweet cherry
Zaiger's Inc. Genetics (US)
FR
2 records
Radu
ActivePrunus avium (L.) L. · Sweet cherry
PETRE LUDOVICCORNEANU GELU
RO
3 records
Tontu
ActivePrunus avium (L.) L. · Sweet cherry
Kalju Kask 100%
EE
4 records
Catalina
ActivePrunus avium (L.) L. · Sweet cherry
PETRE LUDOVICROMINGER EMIL
RO
3 records
Agoudel
ActivePrunus avium (L.) L. · Sweet cherry
Paul Argot (FR)
FR
2 records
Axel
ActivePrunus avium (L.) L. · Sweet cherry
National Agricultural Research and Innovation Centre (NARIC)
HU
3 records
Horka
ActivePrunus avium (L.) L. · Sweet cherry
VÝZKUMNÝ A ŠLECHTITELSKÝ ÚSTAV OVOCNÁŘSKÝ HOLOVOUSY s.r.o. (CZ)
CZ
5 records
Kutuzovka
ActivePrunus avium (L.) L. · Sweet cherry
OREHOVA VALENTINA PETROVNA / TARASYuK GALINA MIHAJLOVNA / LUKIChYoVA LYuBOV' ALEKSEEVNA
UA
4 records