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
HRISTO ATANASOV GEORGIEVCHAVDAR HRISTOV GEORGIEV
Solanum lycopersicum L. · Tomato
Erik Bastet
Solanum lycopersicum L. · Tomato
JAN J.DE BRUIN
Solanum lycopersicum L. · Tomato
Domaine Public (FR)
Solanum lycopersicum L. · Tomato
Katsumi Morigughi
Vicia faba L. · Broad bean
Landwirtschaftliche Bundesversuchswirtschaften Ges.m.b.H.
Solanum lycopersicum L. · Tomato
Yeromenko Viktor Volodymyrovych, Kuz`omens`kyi Oleksandr Volodymyrovych, Kravchenko Vladyslav Andriiovych,
Solanum lycopersicum L. · Tomato
Vasyl`ieva Marharyta IUrivna, Dehovtsova Tetiana Volodymyrivna, Hladkov Dmytro Serhiiovych, Volok Ol`ha Anatoliivna, Amcheslavs`ka Olena Valentynivna, Moriev Viktor Vasyl`ovych, Havrysh Serhii Fedorovych,
Solanum lycopersicum L. · Tomato
Khaled Kazzaz
Solanum lycopersicum L. · Tomato
RAMIRO ARNEDO, S.A.
Solanum lycopersicum L. · Tomato
Tovarystvo z obmezhenoiu vidpovidalnistiu "SPARK SIDZ"
Solanum lycopersicum L. · Tomato
HAZERA SEEDS BV
Solanum lycopersicum L. · Tomato
Kees Konst
Solanum lycopersicum L. · Tomato
Hari Besels
Solanum lycopersicum L. var. lycopersicum · Tomato
Christoph Kleinhanns / Helmut Deike - Saatzuchtstation Eisleben -
Solanum lycopersicum L. · Tomato
Panora s.p.a.
Lupinus luteus L. · Yellow lupin
Poznanska Hodowla Roslin Sp. z o.o
Solanum lycopersicum L. · Tomato
Domaine Public (FR)
Solanum lycopersicum L. var. lycopersicum · Tomato
Rijk Zwaan
Solanum lycopersicum L. · Tomato
Seminis Vegetables (NL)
Lupinus angustifolius L. · Narrow-leaf lupin
Tuhuieva Iryna Volodymyrivna, Vyshnevs`ka Oksana Vasylivna, Vorona Leontii Ivanovych, Ratoshniuk Viktor Ivanovych, Ratoshniuk Ivan IUriiovych, Chernus`ka Tamara Andriivna, Chernus`kyi Vadym Viktorovych,
Solanum lycopersicum L. · Tomato
Domaine Public (FR)
Solanum lycopersicum L. · Tomato
Dale M. Smith
Solanum lycopersicum L. · Tomato
Khaled Kazzaz