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.

Orange Bourgoin

Active

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

2 records

Nettarino

Active

Solanum lycopersicum L. · Tomato

FENIX S.R.L.

2 records

Northstar

Terminated

Pisum sativum L. · Pea

Nunhems Seed Corporation

2 records

Nikolina

Active

Solanum lycopersicum L. · Tomato

Zhivko Danailov

3 records

OAC Almond

Active

Glycine max (L.) Merr. · Soybean

Istvan Rajkan

3 records

Olivade

Terminated

Solanum lycopersicum L. · Tomato

Graines Gautier SA (FR)

4 records

Nyra

Active

Solanum lycopersicum L. · Tomato

Erma Zaden (IL)

2 records

Nela

Active

Solanum lycopersicum L. · Tomato

Instytut Ogrodnictwa - Państwowy Instytut Badawczy

3 records

N 6404

Active

Solanum lycopersicum L. · Tomato

Nunhems B.V.

3 records

Myla

Active

Solanum lycopersicum L. · Tomato

Syngenta Seeds B.V.

3 records

Nyagous

Terminated

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

2 records

Napoleon

Terminated

Cucumis sativus L. · Cucumber

SUNSEEDS

2 records

MT 1284

Active

Solanum lycopersicum L. · Tomato

PLANTENKWEKERIJ VREUGDENHIL B.V.

3 records

Nash

Active

Solanum lycopersicum L. · Tomato

Syngenta Seeds B.V.

2 records

Nagina

Active

Solanum lycopersicum L. · Tomato

BURPEE NL B.V.

2 records

Noire russe

Active

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

2 records

Morane

Active

Solanum lycopersicum L. · Tomato

Graines Gautier SA (FR)

3 records

N 6402

Active

Solanum lycopersicum L. · Tomato

Nunhems B.V.

3 records

Mozia

Active

Solanum lycopersicum L. · Tomato

Axia Vegetable Seeds B.V.

3 records

Mountain Gem

Active

Solanum lycopersicum L. · Tomato

Bejo Zaden B.V.

5 records

Monteazul

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)

3 records

Noemy

Active

Solanum lycopersicum L. · Tomato

ZKI, H

2 records

Montalbano

Active

Phaseolus vulgaris L. · Common bean

CREA-CENTRO DI RICERCA PER L'ORTICOLTURA (CREA-OF-PON)

2 records

Mosak

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.