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.
Solanum lycopersicum L. · Tomato
SYNGENTA SEEDS B.V.
Glycine max (L.) Merr. · Soybean
Saatzucht Donau GmbH & Co.KG
Cucumis sativus L. · Cucumber
BEJO ZADEN B.V, NL
Solanum lycopersicum L. · Tomato
Paul Degreef
Glycine max (L.) Merr. · Soybean
PHP PETERSEN
Solanum lycopersicum L. · Tomato
Seminis Vegetable Seeds
Solanum lycopersicum L. · Tomato
Nunhems B.V.
Solanum lycopersicum L. · Tomato
Syngenta Crop Protection AG
Glycine max (L.) Merr. · Soybean
BARANOV VALENTIN FEDOROVICh / KALYuZhNYJ VADIM GRIGOR'EVICh / EFIMOV ALEKSANDR GRIGOR'EVICh / ShIRINYaN OLEG MNATSAKANOVICh
Lupinus angustifolius L. · Narrow-leaf lupin
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Glycine max (L.) Merr. · Soybean
MALYSh LIDIYa KARPOVNA / RYaZANTSEVA TAT'YaNA PETROVNA / BELYaEVA GALINA NIKOLAEVNA / DYMOVA ALEKSANDRA PETROVNA / MEL'NIKOVA EVGENIYa NIKOLAEVNA / FOMENKO NATAL'Ya DMITRIEVNA / MALYShEV KONSTANTIN SERGEEVICh
Solanum lycopersicum L. · Tomato
Nunhems B.V., Nunhems B.V.
Solanum lycopersicum L. · Tomato
Bejo Zaden BV, NL
Solanum lycopersicum L. · Tomato
Seminis Vegetable Seeds
Solanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
Pisum sativum L. · Pea
Seminis Vegetable Seeds
Phaseolus vulgaris L. · Common bean
VEGETABLE MONSANTO B.V.
Solanum lycopersicum L. · Tomato
Nunhems B.V.
Solanum lycopersicum L. · Tomato
Nunhems B.V.
Solanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Solanum lycopersicum L. var. lycopersicum · Tomato
ENZA ZADEN
Cucumis sativus L. · Cucumber
NUNHEMS
Glycine max (L.) Merr. · Soybean
RAGT 2N S.A.S
Cucumis sativus L. · Cucumber
PNOS