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
Glycine max (L.) Merr. · Soybean
Saatzucht Donau GmbH & Co.KG
Vicia faba L. · Broad bean
Werner Horn
Glycine max (L.) Merr. · Soybean
RUSLAN MONICH and ANNA MONICH-NIGHTINGALE
Glycine max (L.) Merr. · Soybean
Societa Italiana Sementi
Solanum lycopersicum L. · Tomato
Semenarna Ljubljana, SI
Solanum lycopersicum L. · Tomato
PETOSEED CO
Solanum lycopersicum L. · Tomato
MONSANTO INVEST N.V.
Solanum lycopersicum L. · Tomato
SAATZUCHT QUEDLINBURG GMBH
Solanum lycopersicum L. · Tomato
MONSANTO INVEST N.V.
Solanum lycopersicum L. · Tomato
Royal Sluis France Sarl (FR)
Solanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
Capsicum annuum L. · Bell pepper
CAPITAL GENETIC EBT, S.L.
Capsicum annuum L. · Bell pepper
Seminis Vegetable Seeds
Solanum lycopersicum L. · Tomato
Novartis Seeds BV (NL)
Glycine max (L.) Merr. · Soybean
Saatzucht Donau GmbH & Co.KG
Solanum lycopersicum L. · Tomato
Shevchenko Igor
Glycine max (L.) Merr. · Soybean
Gerardo Bartolome
Solanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
Solanum lycopersicum L. · Tomato
Paul Degreef
Solanum lycopersicum L. · Tomato
WESTERN SEED ESPAÑA, S.A.
Solanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
Cucumis sativus L. · Cucumber
Zeraim Gedera Ltd (IL)
Solanum lycopersicum L. · Tomato
Petr Klapste