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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.

PR33M15

Active

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

1 record

GKT3213

Active

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

1 record

Cegot

Withdrawn

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

CZ
1 record

PR32F73

Active

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

1 record

GW0185

Active

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

1 record

ISH303

Active

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

1 record

MS Erica

Terminated

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

1 record

P7326

Active

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

1 record

P7345

Terminated

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

1 record

Spartan

Active

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

1 record

Suanito

Terminated

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

1 record

P1613

Active

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

1 record

Rapidus

Active

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

CZ
1 record

PR33P71

Terminated

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

1 record

GW1282

Active

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

1 record

PR38A75

Active

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

1 record

P0933Y

Active

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

1 record

P8150

Active

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

1 record

P 3965

Terminated

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

HR
1 record

P9071

Active

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

1 record

DKC4685

Active

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

1 record

Kelly

Terminated

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

1 record

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