Variety traits
Determinacy is a genetically determined plant growth habit where development is limited by the formation of a specific number of inflorescences. This trait defines bush architecture, maturation rates, and crop management strategies.
Mentioned in descriptions 12 519 varieties reference book.
Determinacy characterizes a plant's ability to cease vegetative growth after setting a fixed number of inflorescences, terminating in an apical flower cluster. Unlike indeterminate varieties that continue to develop throughout the season, determinate forms are distinguished by their compactness and focus on an early transition to the generative phase.
The trait defines the cultivation strategy by ensuring concentrated fruit set, which simplifies mechanized harvesting. This growth type requires specific agrotechniques, as improper pruning can lead to reduced productivity, while the plants themselves often do not require intensive staking.
The evaluation of determinacy during variety testing is conducted through field observations of plant architecture. Agronomists record the number of leaves to the first cluster, total plant height, and the terminal number of inflorescences on the main stem, classifying the variety on a scale from super-determinate to indeterminate forms.
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.
Solanum lycopersicum L. · Tomato
Boris V. Milkov, Violeta G. Sotirova, Liliya I. Krasteva, Dobra G. Popova
Cucumis sativus L. · Cucumber
Krylov Oleh Mykolaiovych, Borysov Oleksandr Volodymyrovych,
Fagopyrum esculentum Moench · Buckwheat
Rarok Anton Vasyl`ovych, Burdyha Vitalii Mykolaiovych, Havrylianchyk Ruslan IUriiovych, Ivanyshyn Volodymyr Vasyl`ovych,
Solanum lycopersicum L. · Tomato
HAZERA SEEDS BV
Solanum lycopersicum L. · Tomato
Dr. Mario Martinelli
Solanum lycopersicum L. · Tomato
Władysław Kuszyk
Solanum lycopersicum L. · Tomato
Erik Bastet
Solanum lycopersicum L. · Tomato
Dr. Mario Martinelli
Solanum lycopersicum L. · Tomato
The Regents of the University of California (US)
Solanum lycopersicum L. · Tomato
Naomi Gavish
Solanum lycopersicum L. · Tomato
Katsimon Halyna Prokopivna, Danyliuk Halyna Petrivna, Kulikova Nataliia Mykolaivna, Kulikov IUrii Arkadiiovych,
Solanum lycopersicum L. · Tomato
Warszawskie Przedsiębiorstwo Hodowli Roślin Ogrodniczych
Solanum lycopersicum L. · Tomato
HM Clause SAS (FR)/Abundant Seeds Pty Ltd (AU)
Solanum lycopersicum L. · Tomato
Dr. Mario Martinelli
Solanum lycopersicum L. · Tomato
Ger Bimsdeboer
Solanum lycopersicum L. var. lycopersicum · Tomato
Lietuvos agrarinių ir miškų mokslų centro filialas Sodininkystės ir daržininkystės institutas
Solanum lycopersicum L. · Tomato
PAN AMERICA PLANT COMPANY
Solanum lycopersicum L. · Tomato
ReinSaat KG
Solanum lycopersicum L. · Tomato
Her Bemsdeburh
Solanum lycopersicum L. · Tomato
Ger Bimsdeboer
Solanum lycopersicum L. · Tomato
Her Bimsdeboer
Solanum lycopersicum L. · Tomato
Dr. Mario Martinelli
Solanum lycopersicum L. · Tomato
Domaine Public (FR)
Solanum lycopersicum L. · Tomato
Bernardus van den Bosch