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Variety traits

Maize maturity group

Zea mays L. subsp. mays (Maize Group)

The maize maturity group is determined by the FAO index, a numerical indicator ranging from 100 to 999 used to categorize hybrids based on their biological characteristics and heat requirements.

In the reference 1 583 varieties crop Maize, where this is mentioned in the description.

The FAO index serves as a tool for the relative comparison of maize hybrids according to their growing season. The index values are divided into groups: early-maturing (100–199), mid-early (200–299), mid-maturing (300–399), mid-late (400–499), and late-maturing (500 and above). A difference of 10 FAO units under identical conditions corresponds to a change in the growing season of 1–2 days or a change in the grain dry matter content of 1–2%.

Selecting a hybrid based on the FAO index determines adaptation to the sum of active and effective temperatures of the region. Hybrids with a high index possess greater yield potential but require significant grain drying costs, whereas earlier groups are preferred for obtaining grain with low moisture levels. The maturity group also influences the choice of utilization for grain or silage, plant population density, and response to agronomic practices.

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

Sources8

Varieties of Maize 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.

FR 20

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

Pioneer Hi-Bred International Inc (US)

FR
1 record

Lusitano

Active

Zea mays L. subsp. mays (Maize Group) · Maize

KWS SAAT SE&CO.KGaA, DE

FR
1 record

Anjou 285 L

Withdrawn

Zea mays L. subsp. mays (Maize Group) · Maize

Limagrain Genetics Grandes Cultures SA (FR)

FR
1 record

Anjou 285 LIB

Withdrawn

Zea mays L. subsp. mays (Maize Group) · Maize

Limagrain Genetics Grandes Cultures SA (FR)

FR
1 record

B 183

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

Dr Franck (DE)

FR
1 record

PHILEAXX RR

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

MONSANTO TECHNOLOGY

ES
1 record

7SH385

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

Verneuil Recherche SA (FR)

FR
1 record

PR36K69

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

PIONEER HI-BRED INTERNATIONAL

ES
1 record

LG 2447 L

Withdrawn

Zea mays L. subsp. mays (Maize Group) · Maize

Limagrain Genetics Grandes Cultures SA (FR)

FR
1 record

LBR1558

Withdrawn

Zea mays L. subsp. mays (Maize Group) · Maize

Maisadour Semences, FR

FR
1 record

SM Kwant

Withdrawn

Zea mays L. subsp. mays (Maize Group) · Maize

Hodowla Roslin Smolice Sp.z o.o Grupa IHAR

PL
1 record

ROXXY RR

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

MONSANTO TECHNOLOGY

ES
1 record

ROXXY RRYG

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

MONSANTO TECHNOLOGY

ES
1 record

Cixxom

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

1 record

P 8171

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

1 record

P9074E

Active

Zea mays L. subsp. mays (Maize Group) · Maize

1 record

OS 224

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

Poljoprivredni Institut Osijek, HR

HR
1 record

P8635

Active

Zea mays L. subsp. mays (Maize Group) · Maize

1 record

GW9003

Active

Zea mays L. subsp. mays (Maize Group) · Maize

1 record

P0017

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

1 record

Zea mays L. subsp. mays (Maize Group) · Maize

CZ
1 record

PR32P26

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

1 record

KW 1470

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

1 record

P9108

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

1 record

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