Variety traits

Vegetation period of maize

Zea mays L.

The vegetation period of maize is characterized by the FAO index, which links a hybrid to its requirement for the sum of effective temperatures above +10°C to achieve physiological grain maturity.

In the reference 386 varieties crop Maize, where this is mentioned in the description.

In maize agronomy, the duration of the vegetation period is determined not by calendar days, but by the FAO index — a relative measure of earliness. It reflects the plant's requirement for a sum of active or effective temperatures to complete its developmental cycle, which ends with the appearance of the 'black layer' at the base of the grain.

Hybrids are classified on the FAO scale from 100 to 600+, with each group corresponding to specific ranges of temperature sums and estimated maturity times. Choosing a hybrid with an appropriate index is critical for climate adaptation, as the high heat requirement of late-maturing varieties directly affects their yield, grain moisture loss rate, and the risk of failure to reach maturity before the onset of cold weather.

General information about the subject — on the page Vegetation period.

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.

Cesone

Active

Zea mays L. · Maize

CEZEA SLECHTITELSKA STANICE SA

3 records

DKC5709

Active

Zea mays L. · Maize

Monsanto Technology, USA

5 records

Asterix

Protection expired

Zea mays L. · Maize

MAIS ANGEVIN HODEE

4 records

AS 13320

Active

Zea mays L. · Maize

IT UA

4 records

AGN601

Active

Zea mays L. · Maize

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

IT SI

4 records

Turbine

Active

Zea mays L. · Maize

Ken Christensen

4 records

Vympel MV

Active

Zea mays L. · Maize

Tereschuk Serhii Mykolaiovych, Kalynchuk Oleh Ivanovych, Chernobai Larysa Mykolaivna, Ivlieva Tetiana Volodymyrivna, Barsukov Ihor Petrovych, Kamyshan Taisiia Petrivna, Chupikov Mykola Mykhailovych, Kozubenko Leonid Vasyl`ovych,

5 records

Surprise

Active

Zea mays L. · Maize

Südwestdeutsche Saatzucht GmbH&Co.KG

4 records

Stimul

Active

Zea mays L. · Maize

ZhUZhUKIN VALERIJ IVANOVICh / ZAJTSEV SERGEJ ALEKSANDROVICh / VOLKOV DMITRIJ PETROVICh / ZAJTSEVA LIDIYa ILDUSOVNA / GUDKOVA ELENA VADIMOVNA / GUDOVA LYuDMILA ALEKSANDROVNA

4 records