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. var. lycopersicum · Tomato
KLEINHANNS| Christoph Kleinhanns / DEIKE| Helmut Deike - Saatzuchtstation Eisleben -
Solanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
Solanum lycopersicum L. · Tomato
CAPITAL GENETIC EBT, S.L.
Solanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
Solanum lycopersicum L. · Tomato
PETOSEED CO
Solanum lycopersicum L. · Tomato
Daniela G. Ganeva, Galina T. Pevicharova, Dimitrina P. Kostova, Olga A. Georgieva, Vinelina P. Yankova-Mihaylova, Ivanka P. Nikolova
Solanum lycopersicum L. · Tomato
Domaine Public (FR)
Solanum lycopersicum L. · Tomato
Domaine Public (FR)
Solanum lycopersicum L. · Tomato
HM.Clause S.A.S.
Capsicum annuum L. · Bell pepper
Csillery Gabor / Timar Zoltan / Szarka Janos / Palotas Gabriella / Palotas Gabor / Agoston Bela
Capsicum annuum L. · Bell pepper
Experimental station for irrigated agriculture - Pazardzhik (BG) Institute of Vegetable Crops Maritsa - Plovdiv (BG)
Solanum lycopersicum L. · Tomato
HAZERA GENETICS
Solanum lycopersicum L. · Tomato
HEINZSEED
Solanum lycopersicum L. · Tomato
HEINZSEED
Phaseolus vulgaris L. · Common bean
HAO-DEMETER-Fodder Crops and Pastures Institute
Solanum lycopersicum L. · Tomato
Nunhems B.V.
Solanum lycopersicum L. · Tomato
HAZERA GENETICS
Cucumis sativus L. · Cucumber
A. Mihov, M. Aleksandrova, T. Petkova
Solanum lycopersicum L. var. lycopersicum · Tomato
F.LLI INGEGNOLI SPA
Solanum lycopersicum L. · Tomato
RAMIRO ARNEDO, S.A.
Solanum lycopersicum L. · Tomato
ReinSaat KG
Solanum lycopersicum L. · Tomato
GREENROAD B.V.
Solanum lycopersicum L. · Tomato
GREENROAD B.V.
Vicia faba L. var. minuta (hort. ex Alef.) Mansf. · Tick Bean
Cebeco Seeds BV (NL)