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
W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O
Phaseolus vulgaris L. · Common bean
URECKEN'S ZADEN (NL)
Cucumis sativus L. · Cucumber
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Cucurbita pepo L. · Field pumpkin
SAKATA SEED AMERICA INC US
Phaseolus vulgaris L. · Common bean
E.R.S.A. Friuli-Venezia Giulia
Solanum lycopersicum L. · Tomato
De Ruiter Seeds B.V.
Solanum lycopersicum L. · Tomato
Won, Dong-chan, Lim, Byoung-hwan
Solanum lycopersicum L. · Tomato
Yuksel Tohumculuk Tarim San. ve Tic. Ltd. Sti.
Solanum lycopersicum L. · Tomato
LUIS ORTEGA
Solanum lycopersicum L. · Tomato
Nongwoo Bio, Korea
Solanum lycopersicum L. · Tomato
Sakata Seed Corporation (SCC)
Solanum lycopersicum L. · Tomato
Sakata Vegetables Europe, F
Solanum lycopersicum L. · Tomato
TAKII & CO LTD
Solanum lycopersicum L. var. lycopersicum · Tomato
ZETA SEEDS S.L.
Cucumis sativus L. · Cucumber
BURPEE NL B.V.
Glycine max (L.) Merr. · Soybean
RAC Station federale de recherches agronomiques de Changins (CH)
Solanum lycopersicum L. · Tomato
HAZERA GENETICS
Glycine max (L.) Merr. · Soybean
Istvan Raikan
Solanum lycopersicum L. · Tomato
Monsanto Vegetable IP Management B.V.
Solanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Cucumis sativus L. · Cucumber
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Glycine max (L.) Merr. · Soybean
Institut za ratarstvo i povrtarstvo, Novi Sad
Solanum lycopersicum L. · Tomato
SMEDEKS Co d.o.o
Solanum lycopersicum L. · Tomato
Steven Schroeder