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.
Cucumis sativus L. · Cucumber
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Phaseolus vulgaris L. · Common bean
Harris Moran Seed Company (USA) (US)
Solanum lycopersicum L. · Tomato
The State of Oregon acting by and through the State Board of Higher Education on behalf of Oregon State University
Phaseolus vulgaris L. · Common bean
Seminis Vegetable Seeds
Phaseolus vulgaris L. · Common bean
Trinity Genetics LLC
Solanum lycopersicum L. · Tomato
Syngenta Crop Protection AG
Solanum lycopersicum L. · Tomato
Nunhems B.V., Nunhems B.V.
Cucumis sativus L. · Cucumber
Seminis Vegetable Seeds
Cucumis sativus L. · Cucumber
RIJK ZWAAN ZAADTEELT EN ZAADHANDEL B.V.
Lupinus angustifolius L. · Narrow-leaf lupin
Werner Horn
Phaseolus vulgaris L. · Common bean
Robert Gehin, HM.CLAUSE, Inc.
Solanum lycopersicum L. · Tomato
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Vicia faba L. · Broad bean
Serasem S.A.S.
Fagopyrum esculentum Moench · Buckwheat
Saatzucht Gleisdorf GmbH (AT)
Glycine max (L.) Merr. · Soybean
Gerardo Bartolome
Glycine max (L.) Merr. · Soybean
RAGT 2N S.A.S
Glycine max (L.) Merr. · Soybean
RAGT 2N S.A.S
Glycine max (L.) Merr. · Soybean
Semences Prograin Inc
Glycine max (L.) Merr. · Soybean
Hodowla Soi Agroyoumis Polska Sp. Z.o.o.
Glycine max (L.) Merr. · Soybean
STINE SEED Co, USA
Glycine max (L.) Merr. · Soybean
RAGT 2N S.A.S
Glycine max (L.) Merr. · Soybean
Maize Research Institute Zemun Polje
Vicia sativa L. · Common vetch
Danko Hodowla Roslin Sp.z.o.o.
Glycine max (L.) Merr. · Soybean
Lidea France S.A.S