Variety traits

Determinacy

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.

Sources10

Breakdown by crop

Tomato determinacy 3 183 Tomato Determinate Growth 195 Cucumber determinacy 154 Determinacy in Soybean 146 Pepper determinacy 134 Bean determinacy 94 Determinate growth in peas 46 Determinacy — White Lupin 17 Buckwheat determinacy 14 Determinacy — Narrow-leafed lupin 14 Determinacy — Tomato (Interspecific Hybrids) 12 Determinacy — faba bean 10 Determinacy — Faba bean 9 Determinacy in small-seeded faba bean 8 Determinacy in Faba Bean 6 Determinacy — Yellow Lupine 5 Cotton Determinacy 5 Determinacy in Cucurbita maxima 4 Potato determinacy 4 Determinacy — Scarlet Runner Bean 4 Cotton determinacy 3 Eggplant determinacy 3

Found in these crops

Tomato 3 279 Tomato 198 Bell pepper 168 Cucumber 166 Soybean 158 Common bean 103 Pea 48 White lupin 20 Narrow-leaf lupin 18 Yellow lupin 15 Buckwheat 14 Broad bean 13

Varieties that feature this in their description

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.

Emerald Evergreen

Active

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

2 records

Elvira

Active

Solanum lycopersicum L. · Tomato

GRATI, Maria, MD / MIHNEA, Nadejda, MD / GRATI, Vasile, MD / JACOTĂ, Anatolie, MD

2 records

Ekstasis

Active

Solanum lycopersicum L. · Tomato

NIRIT SEEDS

2 records

E247

Active

Solanum lycopersicum L. · Tomato

Enza Zaden Beheer B.V.

2 records

Exelle

Terminated

Vicia faba L. var. minuta (hort. ex Alef.) Mansf. · Tick Bean

Station d'Amelioration des Plantes

2 records

Eva

Active

Solanum lycopersicum L. var. lycopersicum · Tomato

GAVRISh SERGEJ FEDOROVICh / DUBININ SERGEJ VLADIMIROVICh

4 records

Excalibur

Terminated

Solanum lycopersicum L. · Tomato

Vilmorin SA (FR)

2 records

Evergreen

Active

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

2 records

Elberta peach

Active

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

2 records

Elanto

Terminated

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

3 records

Estrellade

Active

Solanum lycopersicum L. · Tomato

Gautier Semences SAS (FR)

2 records

Druzba

Terminated

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

2 records

Dragon

Active

Vicia faba L. var. major Harz · Broad bean

Przedsiębiorstwo Nasiennictwa Ogrodniczego i Szkółkarstwa Spółka Akcyjna w upadłości likwidacyjnej \Instytut Ogrodnictwa - Państwowy Instytut Badawczy

3 records

Erk

Terminated

Solanum lycopersicum L. · Tomato

Valve Jaagus 85%, Maia Raudseping 10%, Kaljo Kask 5%

3 records

Erika d'Australie

Active

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

2 records

Erifiz

Terminated

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)

2 records

Dulcito RZ

Terminated

Solanum lycopersicum L. · Tomato

RIJK ZWAAN Z.Z. B.V.

2 records

Elena prima

Active

Solanum lycopersicum L. · Tomato

Zhivko Danailov

3 records

El Cid

Active

Solanum lycopersicum L. · Tomato

INTERSEMILLAS SAU

2 records

Donatellina

Active

Solanum lycopersicum L. · Tomato

ReinSaat KG

2 records

Dorada

Active

Solanum lycopersicum L. · Tomato

Dr. Horneburg Bernd, Georg-August-Universität Göttingen

2 records

Earlymat

Terminated

Solanum lycopersicum L. · Tomato

Petoseed Co INC (US)

2 records

Eccelso

Active

Solanum lycopersicum L. · Tomato

ESASEM SPA. Via G. Marconi, 56 37052- Casaleone (VR), Italy

3 records

Dymik

Active

Cucumis sativus L. · Cucumber

Yuksel Tohumculuk Tarim San. ve Tic. Ltd. Sti.

2 records

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Variety traits

Maturity group 89 063
Yield 67 000
Vigor 53 548
Plant height 51 504
Lodging 50 198
Taste and aroma 36 010
Variety origin 29 523
Productivity 27 845

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.