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
Sakata Seed Corporation, JP
Solanum lycopersicum L. · Tomato
ReinSaat KG
Solanum lycopersicum L. · Tomato
Domaine Public (FR)
Solanum lycopersicum L. · Tomato
SEMILLAS FITO, S.A.
Solanum lycopersicum L. var. lycopersicum · Tomato
OLTER SRL
Solanum lycopersicum L. · Tomato
PNOS
Solanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum lycopersicum L. var. lycopersicum · Tomato
GAVRISh SERGEJ FEDOROVICh / MOREV VIKTOR VASIL'EVICh / AMChESLAVSKAYa ELENA VALENTINOVNA / VOLOK OL'GA ANATOL'EVNA / ALEKSANDROV MIHAIL ALEKSANDROVICh
Solanum lycopersicum L. · Tomato
Y³ksel Tohum Tarim San. ve Tic A.S.
Solanum lycopersicum L. var. lycopersicum · Tomato
GAVRISh SERGEJ FEDOROVICh / MOREV VIKTOR VASIL'EVICh / AMChESLAVSKAYa ELENA VALENTINOVNA / VOLOK OL'GA ANATOL'EVNA / ALEKSANDROV MIHAIL ALEKSANDROVICh
Solanum lycopersicum L. · Tomato
VANDERLEI VARISI
Solanum lycopersicum L. · Tomato
Domaine Public (FR)
Solanum lycopersicum L. · Tomato
MERIDIEM SEEDS S.L.
Solanum lycopersicum L. · Tomato
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Solanum lycopersicum L. · Tomato
Hristina Georgieva, Chavdar Georgiev
Solanum lycopersicum L. · Tomato
Yordanka Tosheva
Solanum lycopersicum L. · Tomato
ReinSaat KG
Solanum lycopersicum L. · Tomato
Sakata Seed Corporation, JP
Solanum lycopersicum L. · Tomato
Spas Gelemerov
Solanum lycopersicum L. · Tomato
Tzvetelin Yankow, "Florian" OOD
Solanum lycopersicum L. · Tomato
INCONNU (FR)
Solanum lycopersicum L. · Tomato
Institute of Vegetable Crops Maritsa - Plovdiv (BG) and Center of Plant Systems Biology and Biotechnology - Plovdiv (BG)
Solanum lycopersicum L. · Tomato
Graines Gautier SA (FR)
Solanum lycopersicum L. · Tomato
HAZERA SEEDS BV