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Variety traits

Rice Maturity Group

Oryza sativa L.

The rice maturity group is determined by the length of the growing season from emergence to maturity, which ranges from 90 to 165 days. The classification of varieties is based on these timeframes and the cumulative active temperature requirement of 3300 to 4500 °C.

In the reference 223 varieties crop Rice, where this is mentioned in the description.

For rice, the length of the growing season is a key varietal trait; however, unlike other cereal crops, rigid numerical boundaries for maturity groups are not standardized. The earliness of a variety is evaluated by recording plant phenological stages such as emergence, tillering, heading, flowering, and maturity.

The choice of maturity group is a determining factor in cultivation strategy, allowing the crop's life cycle to be adapted to the frost-free period and temperature regime of a region. Maturity dates directly influence the water management schedule, fertilizer application, and determine the biochemical composition of the grain, including amylose and protein content.

General information about the subject — on the page Maturity group.

Sources5

Varieties of Rice mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.

SYCR 128

Active

Oryza sativa L. · Rice

SICHUAN ACADEMY OF AGR.

ES
3 records

Oryza sativa L. · Rice

RICE TEC INC.

IT
4 records

L-206

Active

Oryza sativa L. · Rice

LUGANO LEONARDO SRL

IT
2 records

CL181-AR

Active

Oryza sativa L. · Rice

The Board Of Trustees Of The University Of Arkansas

2 records

Oryza sativa L. · Rice

HR IT
5 records

Primo

Terminated

Oryza sativa L. · Rice

BERTONE SEMENTI SPA

IT
3 records

Tiber

Terminated

Oryza sativa L. · Rice

CIRAD-BIOS (FR)/Centre Francais du Riz (FR)

FR
4 records

BST2

Active

Oryza sativa L. · Rice

BERTONE SEMENTI SPA

IT
3 records

Tesla

Active

Oryza sativa L. · Rice

S.I.S. SOCIETA' ITALIANA SEMENTI

IT
4 records

Oryza sativa L. · Rice

Semillas Certificadas Castells S.L.

ES
5 records

Monet

Active

Oryza sativa L. · Rice

Sardo Piemontese Sementi Soc. Coop. Società Agricola

IT
4 records

Fenomeno

Active

Oryza sativa L. · Rice

Borando Daniele (IT)

BG
3 records

Maso

Active

Oryza sativa L. · Rice

Semillas Certificadas Castells S.L.

ES
5 records

Indaco

Active

Oryza sativa L. · Rice

LUGANO LEONARDO SRL

IT
4 records

Furbo

Active

Oryza sativa L. · Rice

BILONI MASSIMO

IT
3 records

Alfa

Active

Oryza sativa L. · Rice

ESERCIZIO SEMENTI S.R.L.

ES IT
4 records

Perla

Terminated

Oryza sativa L. · Rice

CREA-CENTRO DI RICERCA INGEGNERIA E TRASFORMAZIONI AGROALIMENTARI (CREA-IT-RM)

IT
3 records

RG300A

Active

Oryza sativa L. · Rice

RISO GALLO S.P.A.

IT
4 records

Evropi

Protection expired

Oryza sativa L. · Rice

HAO-DEMETER - Cereal Institute

GR
4 records

Oryza sativa L. · Rice

Polenghi Giandomenico

IT
4 records

Iarim

Active

Oryza sativa L. · Rice

ENTE NAZIONALE RISI

IT
4 records

Ruille

Protection expired

Oryza sativa L. · Rice

Cirad-Ca (FR)

FR
4 records

Kalao

Terminated

Oryza sativa L. · Rice

Sud Cereales (FR)

FR
3 records

Capo

Active

Oryza sativa L. · Rice

SOCIETÀ AGRICOLA GIULIO MELZI D'ERIL S.S.

IT
4 records