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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.

Pantera

Active

Capsicum annuum L. · Bell pepper

ALEJANDRO MARTIN CARA

ES
2 records

Palermo

Terminated

Solanum lycopersicum L. · Tomato

Vilmorin SA (FR)

FR
2 records

Nuit australe

Active

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

FR
2 records

Oh Happy Day

Active

Solanum lycopersicum L. · Tomato

BURPEE EUROPE LIMITED

NL
2 records

Ofira

Active

Solanum lycopersicum L. · Tomato

Nirit Seeds, IL

FR
2 records

Orange Banana

Active

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

FR
2 records

Omar's Lebanese

Active

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

FR
2 records

Olirose

Active

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

FR
2 records

OAC Bounty

Active

Glycine max (L.) Merr. · Soybean

Istvan Rajkan

UA
3 records

Nopi

Active

Solanum lycopersicum L. · Tomato

UNITED GENETICS ITALIA S.P.A

PT
2 records

Octydia

Terminated

Solanum lycopersicum L. · Tomato

Gautier Semences SAS (FR)

FR
2 records

Octavio

Terminated

Solanum lycopersicum L. · Tomato

Graines Gautier SA (FR)

FR
3 records

Oria

Active

Solanum lycopersicum L. · Tomato

SEMILLAS FITO, S.A.

ES
2 records

Orangeto

Active

Solanum lycopersicum L. · Tomato

Pro-Veg Seeds Ltd. Unit N Peek House, Dales Manor Business Park

NL
2 records

Nuxy

Active

Solanum lycopersicum L. · Tomato

Shcevchenko Igor

UA
3 records

Or Arno

Active

Phaseolus vulgaris L. · Common bean

ORTORICERCA SRL

IT
2 records

Oranzhevo chudo

Active

Solanum lycopersicum L. · Tomato

"Florian" OOD - Ruse (BG)

BG
2 records

Orzu

Active

Cucumis sativus L. · Cucumber

Nunhems B.V.

NL
2 records

Oriental Magic

Active

Solanum lycopersicum L. · Tomato

Sakata Seed Corporation (SCC)

FR
3 records

Olmedo

Active

Solanum lycopersicum L. · Tomato

Vilmorin-Mikado S.A.S.

FR
3 records

Oranjestar

Active

Solanum lycopersicum L. · Tomato

Sakata Seed Corporation, JP

FR
2 records

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