Krissos
ActiveCucumis sativus L. · Cucumber
CZ
2 records
Variety traits
Parthenocarpy
Parthenocarpy is the genetic ability of a plant to form fruits without the process of pollination. This trait allows for a stable yield of seedless fruits in greenhouse conditions or during adverse weather when pollinating insects are scarce.
Mentioned in descriptions 713 varieties reference book.
Parthenocarpy manifests in the formation of fruits without pollination, which ensures stable yields regardless of insect activity or weather conditions. Plants of this type usually form seedless fruits or fruits with empty seeds, which prevents deformation and yellowing caused by the absence of a normal seed-setting process. Most of these hybrids feature a predominantly female flowering type, allowing for more efficient use of the planting area.
During variety testing, this trait is evaluated by the percentage of fruit set relative to the total number of female flowers under strict isolation. Gradations ranging from weak to very strong are distinguished, where the unit of measurement corresponds to the percentage of formed ovaries. When choosing a variety, it is taken into account that some hybrids possess partial parthenocarpy, maintaining the ability to set fruits both in the presence and absence of pollination.
The expression of parthenocarpy is a varietal trait, yet its manifestation depends on environmental conditions. Optimal factors include moderate temperatures around 17–18 °C, high light intensity, short day length, and balanced mineral nutrition. The intensity of the trait may also change depending on the age of the plant, and in the case of accidental pollination by insects, the fruits of some parthenocarpic varieties may lose their marketability.
Breakdown by crop
Found in these crops
Varieties that feature this in their description
Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.
Lyon
TerminatedCucumis sativus L. · Cucumber
NL
2 records
Klapova
ActivePyrus communis L. · European pear
SI
2 records
Hansa
ActiveCucumis sativus L. · Cucumber
HU
2 records
Kalomira
ActiveCucumis sativus L. · Cucumber
DE
2 records
Jud
ActiveCucumis sativus L. · Cucumber
HU
2 records
IMAMURA
ActiveCitrus unshiu Marcow. · Satsuma mandarin
ES
2 records
Kian
ActiveCucumis sativus L. · Cucumber
NL
2 records
Flyer
TerminatedCucumis sativus L. · Cucumber
NL
3 records
Kaikura
ActiveCucumis sativus L. · Cucumber
CZ
2 records
Kaiman
ActiveCucumis sativus L. · Cucumber
CZ
2 records
ESBAL
ActiveCitrus clementina hort. ex Tanaka · Clementine
ES
5 records
Cypria
TerminatedCucumis sativus L. · Cucumber
NL
2 records
Clarance
TerminatedSolanum lycopersicum L. · Tomato
NL
2 records
Fetelova
ActivePyrus communis L. · European pear
SI
3 records
Colossos
ActiveCucumis sativus L. · Cucumber
CZ
2 records
Cleopha
ActiveCucumis sativus L. · Cucumber
DE
2 records
Elza
ActiveCucumis sativus L. · Cucumber
HU
2 records
Dorna
ActiveCucumis sativus L. · Cucumber
RO
2 records
Dinasty
TerminatedCucumis sativus L. · Cucumber
IT
2 records
Društvenka
ActivePyrus communis L. · European pear
SI
3 records
Benevita
TerminatedSolanum lycopersicum L. · Tomato
NL
2 records
Carlin
TerminatedCucumis sativus L. · Cucumber
NL
3 records
Camilla
TerminatedCucumis sativus L. · Cucumber
NL
2 records