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
Panchev IUrii Ivanovych
Solanum lycopersicum L. · Tomato
Hari Besels
Lupinus luteus L. · Yellow lupin
Kobyzhcha Ivan Oleksandrovych, Solodiuk Nataliia Volodymirivna, Zhydok Nataliia Pavlivna, Hrynyk Ihor Volodymyrovych, Bardakov Volodymyr Anatoliiovych, Bardakov Anatolii Hryhorovych,
Solanum lycopersicum L. · Tomato
Dutch American Plantbreeders Corp.
Solanum lycopersicum L. · Tomato
Domaine Public (FR)
Solanum lycopersicum L. · Tomato
Naumov Ruslan Olehovych, Krasniuk Viacheslav Anatoliiovych,
Solanum lycopersicum L. · Tomato
Hari Besels
Solanum lycopersicum L. · Tomato
Naumov Ruslan Olehovych, Krasniuk Viacheslav Anatoliiovych,
Solanum lycopersicum L. · Tomato
Ger Bimsdeboer
Solanum lycopersicum L. var. lycopersicum · Tomato
ISI SEMENTI SPA
Solanum lycopersicum L. · Tomato
Joon-Hyung Anh
Solanum lycopersicum L. · Tomato
Mercier Jean-Claude
Solanum lycopersicum L. · Tomato
Deil Smit
Solanum lycopersicum L. · Tomato
Stril`nyk Halyna Vasylivna, Nedialkova Iiuliia Antonivna, Horkutsenko Oleksandr Vasyl`ovych, Kravchenko Vladyslav Andriiovych, Shotyk Mykola Vasyl`ovych,
Solanum lycopersicum L. · Tomato
Seminis Vegetable Seeds
Solanum lycopersicum L. var. lycopersicum · Tomato
OLTER SRL
Solanum lycopersicum L. var. lycopersicum · Tomato
HRISTO ATANASOV GEORGIEV
Solanum lycopersicum L. · Tomato
Sytnychenko Serhii Mykolaiovych
Solanum lycopersicum L. · Tomato
Don Reed
Solanum lycopersicum L. · Tomato
Shotyk Mykola Vasyl`ovych, Katsimon Halyna Prokopivna, Danyliuk Halyna Petrivna, Kravchenko Vladyslav Andriiovych,
Solanum lycopersicum L. · Tomato
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Solanum lycopersicum L. · Tomato
HAZERA SEEDS BV
Solanum lycopersicum L. · Tomato
NEZZALEZ, S.L.
Glycine max (L.) Merr. · Soybean
Molodchenkova Olha Olehivna, Bushulian Oleh Volodymyrovych, Hanzhelo Olha Ivanivna, Lavrova Halyna Dmytrivna, Sichkar V'iacheslav Ivanovych,