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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.

MZA25

Withdrawn

Oryza sativa L. · Rice

SOCIETÀ AGRICOLA GIULIO MELZI D'ERIL S.S.

IT
1 record

Traiano CL

Application submitted

Oryza sativa L. · Rice

DR. EUGENIO GENTINETTA

IT
1 record

MZA3

Withdrawn

Oryza sativa L. · Rice

SOCIETÀ AGRICOLA GIULIO MELZI D'ERIL S.S.

IT
1 record

SA1903

Terminated

Oryza sativa L. · Rice

SA.PI.SE SARDO PIEMONTESE SEMENTI

IT
1 record

CLEARGRAN CL

Application submitted

Oryza sativa L. · Rice

INSTITUTO HISPANICO DEL ARROZ, S.A. (HISPARROZ)

ES
2 records

Violino

Application submitted

Oryza sativa L. · Rice

IRES SRL / SOCIETÀ AGRICOLA GIULIO MELZI D'ERIL S.S.

IT
1 record

19ES-L24-99

Withdrawn

Oryza sativa L. · Rice

GRUPO DE INVESTIGACIÓN DR. SALVADOR NOGUÉS

ES
2 records

3RI24/15

Application submitted

Oryza sativa L. · Rice

S.I.S. SOCIETA' ITALIANA SEMENTI

IT
1 record

3RI24/24

Withdrawn

Oryza sativa L. · Rice

S.I.S. SOCIETA' ITALIANA SEMENTI

IT
1 record

PRIME CL

Withdrawn

Oryza sativa L. · Rice

INST.RIO GRANDENSE DO ARROZ/M.I.L.B, LTDA.

ES
1 record

BRAÇAL

Terminated

Oryza sativa L. · Rice

INIA/IVIA

ES
2 records

PVL057

Withdrawn

Oryza sativa L. · Rice

LOUISIANA STATE UNIVERSITY

IT
1 record

PVL 080

Withdrawn

Oryza sativa L. · Rice

LOUISIANA STATE UNIVERSITY

IT
1 record

Pygmalion

Terminated

Oryza sativa L. · Rice

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

FR
2 records

BALRO_G25

Withdrawn

Oryza sativa L. · Rice

BERTONE SEMENTI SPA

IT
1 record

GWR-029

Application submitted

Oryza sativa L. · Rice

WANG XUEREN

IT
1 record

GWR-032

Application submitted

Oryza sativa L. · Rice

WANG XUEREN

IT
1 record

GWR-053

Application submitted

Oryza sativa L. · Rice

WANG XUEREN

IT
1 record

LAGFD

Active

Oryza sativa L. · Rice

Concha Domingo Carrasco (IVIA)/Isabel Rosello Perez (IVIA)

ES
2 records

Cerbero

Application submitted

Oryza sativa L. · Rice

SOCIETÀ AGRICOLA GIULIO MELZI D'ERIL S.S.

IT
1 record

NEWBONNET

Terminated

Oryza sativa L. · Rice

ARS-USDA&ARKANSAS

ES
1 record

Oryza sativa L. · Rice

INSTITUTO HISPANICO DEL ARROZ, S.A. (HISPARROZ)

ES
2 records

Prestyzh

Active

Oryza sativa L. · Rice

Shpak Tetiana Mykolaivna, Zakharchenko Leonid Hryhorovych, Sudin Valerii Mykhailovych, Vozhehova Raisa Anatoliivna,

UA
2 records

Irat 348

Protection expired

Oryza sativa L. · Rice

I.R.A.T. (FR)

FR
1 record