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.

Miel du Mexique

Active

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

2 records

Motto

Active

Solanum lycopersicum L. · Tomato

Takii and Co Ltd (JP)

3 records

Montalban 2000

Active

Solanum lycopersicum L. · Tomato

UNITED GENETICS SEEDS CO

2 records

Mihnea

Active

Capsicum annuum L. · Bell pepper

AGROSEL S.R.L.

3 records

Melite

Active

Solanum lycopersicum L. var. lycopersicum · Tomato

MED HERMES S.R.L

2 records

Moon Glow

Terminated

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

2 records

Momino sartse

Active

Solanum lycopersicum L. · Tomato

"Florian" OOD - Ruse (BG)

2 records

Mountain Tiger

Active

Solanum lycopersicum L. · Tomato

Bakker Brothers Gebroeders Bakker Zaadteelt en Zaadhandel BV

2 records

Meraviglia

Active

Phaseolus vulgaris L. · Common bean

RANALLI PAOLO

3 records

Medeno SRCE

Active

Solanum lycopersicum L. var. lycopersicum · Tomato

IVO DZhINOVICh

2 records

Merveille des marchés

Active

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

3 records

Mio Sweet

Active

Solanum lycopersicum L. · Tomato

Torsten Olsson Frö AB

2 records

Maskarena

Terminated

Solanum lycopersicum L. · Tomato

Szkola Glowna Gospodarstwa Wiejskiego

3 records

Mini blanche

Active

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

2 records

Mirabelle blanche

Active

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

2 records

Marmango

Active

Solanum lycopersicum L. · Tomato

Gautier Semences SAS (FR)

2 records

Mini rouge

Protection expired

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

2 records

Marutschka

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)

3 records

Mikado Violetor

Active

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

2 records

Mieszko

Active

Solanum lycopersicum L. · Tomato

PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.

2 records

Marvel

Protection expired

Solanum lycopersicum L. · Tomato

PETOSEED CO

2 records

Miamour

Active

Solanum lycopersicum L. · Tomato

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

2 records

Merlin

Active

Solanum lycopersicum L. · Tomato

SEMILLAS FITO, S.A.

2 records

Marmalindo

Active

Solanum lycopersicum L. · Tomato

Nunhems B.V.

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.