Variety traits
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.
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.
Glycine max (L.) Merr. · Soybean
Saatzucht Donau GmbH & Co.KG
Solanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
Solanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
Solanum lycopersicum L. · Tomato
Syngenta Crop Protection AG
Solanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
Solanum lycopersicum L. · Tomato
Bayer Holland B.V.
Solanum lycopersicum L. · Tomato
Bayer Holland B.V.
Lupinus luteus L. · Yellow lupin
Poznanska Hodowla Roslin Sp. z o.o
Solanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum lycopersicum L. · Tomato
Seminis SVS Holland, NL
Solanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
Phaseolus vulgaris L. · Common bean
Syngenta Seeds B.V.
Solanum lycopersicum L. · Tomato
SATIMEX QUEDLINBURG HANDELSGESELLSCHAFT GmbH
Capsicum annuum L. · Bell pepper
SOMOGYI GYÖRGY^^^MÁRKUS FERENC^^^KAPITÁNY JÓZSEF^^^SOMOGYI NORBERT^^^PÉK MIKLÓS
Solanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
Solanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Lupinus angustifolius L. · Narrow-leaf lupin
I.G. SAATZUCHT VERWALTUNG| I.G. Saatzucht Verwaltungs GmbH
Phaseolus vulgaris L. · Common bean
Syngenta Seeds
Solanum lycopersicum L. · Tomato
SVR, ZAF
Solanum lycopersicum L. · Tomato
Paul Degreef
Solanum lycopersicum L. · Tomato
Sakata Seed Southern Africa Ltd (ZA)
Solanum lycopersicum L. · Tomato
Monsanto Holland BV (NL)
Solanum lycopersicum L. · Tomato
Monsanto Vegetable IP Management B.V.
Solanum lycopersicum L. · Tomato
Esasem Spa (IT)