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.
Cucumis sativus L. · Cucumber
MOTOV VIKTOR MIHAJLOVICh / BIRYuKOVA NINA KONSTANTINOVNA / ERDYaKOVA VALENTINA ALEKSEEVNA
Solanum lycopersicum L. · Tomato
SEMILLAS FITO, S.A.
Solanum lycopersicum L. · Tomato
Yuksel Tohumculuk LTD
Solanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Phaseolus vulgaris L. · Common bean
Holland-Select Research B.V.
Solanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
Solanum lycopersicum L. · Tomato
RIJK ZWAAN ZAADTEELT EN ZAADHANDEL B.V.
Solanum lycopersicum L. · Tomato
Sakata Vegenetics (Pty) Ltd (ZA)/Sakata Seed Sudamerica Ltd (BR)
Solanum lycopersicum L. · Tomato
Yuksel Tohumculuk Tarim San. ve Tic. Ltd. Sti.
Solanum lycopersicum L. · Tomato
Yuksel Tohumculuk LTD
Solanum lycopersicum L. · Tomato
SEMILLAS FITO, S.A.
Glycine max (L.) Merr. · Soybean
Sylvain Legay
Lupinus albus L. · White lupin
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Solanum lycopersicum L. var. lycopersicum · Tomato
GAVRISh SERGEJ FEDOROVICh / MOREV VIKTOR VASIL'EVICh / AMChESLAVSKAYa ELENA VALENTINOVNA / DEGOVTSOVA TAT'YaNA VLADIMIROVNA / VOLOK OL'GA ANATOL'EVNA
Solanum lycopersicum L. · Tomato
W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O
Solanum lycopersicum L. · Tomato
Monstanto, NL
Capsicum annuum L. · Bell pepper
CLAUSE, S.A.
Solanum lycopersicum L. · Tomato
UNITED GENETICS SEEDS CO
Pisum sativum L. · Pea
Limagrain UK
Solanum lycopersicum L. · Tomato
Kees Konst
Phaseolus vulgaris L. · Common bean
Association Interprofessionnelle du Haricot Tarbais (FR)/Cooperative du Haricot Tarbais (FR)/Delta International Sarl (FR)/Hallard Jacques (FR)
Pisum sativum L. · Pea
Limagrain UK
Solanum lycopersicum L. · Tomato
Seminis Vegetable Seeds