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.

Inspired

Active

Solanum lycopersicum L. · Tomato

Seminis Vegetable Seeds

6 records

Indigo Pear Drops

Active

Solanum lycopersicum L. · Tomato

Oregon State University

4 records

Idolini

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

6 records

Hateno

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

9 records

Haiti

Active

Solanum lycopersicum L. · Tomato

MARTIJN VAN STEE

5 records

Haags Blaue

Active

Lupinus angustifolius L. · Narrow-leaf lupin

SAATZUCHT STEINACH GMBH and CO KG

6 records

Fenda

Active

Solanum lycopersicum L. · Tomato

HM.CLAUSE

4 records

Euforia

Active

Solanum lycopersicum L. · Tomato

Syngenta Seeds, NL

4 records

EM Sole

Active

Glycine max (L.) Merr. · Soybean

Schillinger Genetics Inc

5 records

Elpida

Active

Solanum lycopersicum L. · Tomato

ENZA ZADEN BEHEER B.V.

5 records

Ebia

Active

Solanum lycopersicum L. · Tomato

Syngenta, NL

7 records

E43109

Active

Solanum lycopersicum L. · Tomato

Martjin van Stee

6 records

Cristal

Active

Solanum lycopersicum L. var. lycopersicum · Tomato

HM CLAUSE, FR

4 records

Claudine

Active

Cucumis sativus L. · Cucumber

Seminis SVS Holland, NL

4 records

Dakar

Active

Capsicum annuum L. · Bell pepper

ZERAIM GEDERA

4 records

Corinto

Active

Cucumis sativus L. · Cucumber

Enza Zaden, NL

5 records

Chick

Active

Solanum lycopersicum L. · Tomato

Yuksel Tohum, TR

4 records

Bambelo

Active

Solanum lycopersicum L. · Tomato

Syngenta Seeds B.V.

7 records

Bebeto

Active

Cucumis sativus L. · Cucumber

Syngenta Seeds B.V.

7 records

Aspen

Protection expired

Phaseolus vulgaris L. · Common bean

Michigan State University

4 records

Arendell

Active

Solanum lycopersicum L. · Tomato

Nunhems B.V.

4 records

Adorelle

Active

Solanum lycopersicum L. · Tomato

Syngenta Crop Protection AG

5 records

Adundas

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

6 records

Courier

Protection expired

Pisum sativum L. · Pea

New Zealand Institute for Crop and Food Research Ltd

5 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.