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.

Akrai

Active

Solanum lycopersicum L. · Tomato

SAIS Spa

3 records

Antuan

Active

Cucumis sativus L. · Cucumber

Bejo Zaden B.V.

3 records

Antumay

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

4 records

Amana Orange

Terminated

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

2 records

Alvaro

Terminated

Solanum lycopersicum L. · Tomato

ERGON INTERNATIONAL N.V.

2 records

Annasun

Active

Solanum lycopersicum L. · Tomato

Enza Zaden Beheer B.V.

2 records

Anna Russe

Protection expired

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

2 records

Annaluca

Terminated

Solanum lycopersicum L. · Tomato

Enza Zaden Beheer B.V.

4 records

Almota

Protection expired

Pisum sativum L. · Pea

Ardie G. Gustafson, Seedsman

2 records

Adriatyco

Active

Solanum lycopersicum L. · Tomato

Gautier Semences SAS (FR)

2 records

Allure

Active

Solanum lycopersicum L. · Tomato

Stokes Seeds Limited

2 records

Aligote

Active

Solanum lycopersicum L. · Tomato

Vilmorin SA (FR)

2 records

Agent

Active

Solanum lycopersicum L. · Tomato

W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O

3 records

Aida

Terminated

Solanum lycopersicum L. · Tomato

NIRIT SEEDS

2 records

Alarga

Terminated

Vicia faba L. var. major Harz · Broad bean

CIFA/ETSIAM

2 records

Alston

Active

Solanum lycopersicum L. · Tomato

Syngenta Crop Protection AG

4 records

Agatos

Active

Solanum lycopersicum L. · Tomato

UNITED GENETICS SEEDS CO

2 records

1202

Active

Solanum lycopersicum L. · Tomato

PLANTENKWEKERIJ VREUGDENHIL B.V.

3 records

Agasi

Active

Solanum lycopersicum L. · Tomato

INTERSEMILLAS SAU

2 records

Afamia

Application submitted

Solanum lycopersicum L. · Tomato

Kees Konst

4 records

Abale

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

3 records

Alegria

Active

Solanum lycopersicum L. · Tomato

GOLDEN WEST SEED RESEARCH Co.

2 records

Admirax

Active

Solanum lycopersicum L. · Tomato

Axia Vegetable Seeds B.V.

3 records

Addalyn

Active

Solanum lycopersicum L. · Tomato

HAZERA GENETICS

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.