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.

Heinz 9557

Active

Solanum lycopersicum L. · Tomato

HEINZSEED

4 records

ARNOL'D

Active

Solanum lycopersicum L. var. lycopersicum · Tomato

NIRIT SEEDS

4 records

Nema mech

Terminated

Solanum lycopersicum L. · Tomato

SEMINIS VEGETABLE SEED IB

2 records

PERFECT PEEL F1

Active

Solanum lycopersicum L. · Tomato

Petoseed Company Inc. (USA)

HR UA

2 records

Coral 432

Withdrawn

Brassica juncea (L.) Czern. · Brown mustard

Advanta Seed International

FR IT

2 records

TY-sun

Active

Solanum lycopersicum L. · Tomato

Choi, Haksoon, Huh, Yun-Chan, Lee, Woo Moon, Yang Eun Young, Chae, Soo Young, Jang, Suk Woo, Lee Hee-Ju , Park, Dong Kum, Kwak Jung-Ho, Yoon Moo kyung

2 records

Sugar Gloss

Active

Solanum lycopersicum L. · Tomato

Syngenta Seeds B.V.

3 records

Nemabrix 2000

Active

Solanum lycopersicum L. · Tomato

UNITED GENETICS SEEDS CO

3 records

Purpurno rozovo sartse

Active

Solanum lycopersicum L. · Tomato

"Florian" OOD - Ruse (BG)

2 records

Joyau d'Oaxaca

Active

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

4 records

Max-9

Active

Gossypium hirsutum L. · Upland cotton

Levelland Delinting Inc.

3 records

HEINZ 9205

Active

Solanum lycopersicum L. · Tomato

HEINZSEED

3 records

BIG RIO -2000

Active

Solanum lycopersicum L. · Tomato

UNITED GENETICS SEEDS CO

3 records

Heinz 3406

Active

Solanum lycopersicum L. · Tomato

HEINZSEED

3 records

GARTEN PERLE

Active

Solanum lycopersicum L. var. lycopersicum · Tomato

ISP INTERNATIONAL SEEDS PROCESSING

3 records

CXD 223

Active

Solanum lycopersicum L. · Tomato

CAMPBELL SEEDS

3 records

AL'TAIR

Withdrawn

Pisum sativum L. · Pea

ZELENOV ANATOLIJ NIKOLAEVICh / NOVIKOVA NADEZhDA EVGEN'EVNA / AMELIN ALEKSANDR VASIL'EVICh / KONDYKOV IGOR' VIKTOROVICh / LAHANOV ANATOLIJ PETROVICh / TITENOK TAT'YaNA SERGEEVNA / ANDRYuHINA RAISA MIHAJLOVNA / ShELEPINA NATAL'Ya VLADIMIROVNA / KORNIENKO N

2 records

AL'FA

Application submitted

Glycine max (L.) Merr. · Soybean

TRIUMPH SEED CO.

2 records

EX 08540794

Active

Pisum sativum L. · Pea

Seminis Vegetable Seeds

2 records

Mi 10

Active

Solanum lycopersicum L. · Tomato

Institut za povrtarstvo, Smederevka Palanka

2 records

Alderman

Active

Pisum sativum L. · Pea

ES FR IT SI

9 records

Marmande

Active

Solanum lycopersicum L. · Tomato

BG CZ ES HR SI

6 records

Harmonie

Active

Cucumis sativus L. · Cucumber

CZ HR HU NL SK

6 records

Salinas

Active

Cucumis sativus L. · Cucumber

CZ HU NL SK

6 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.