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.

Bc 191

Active

Zea mays L. · Maize

Bc Institut, HR

3 records

Celebrato

Active

Zea mays L. · Maize

KWS SAAT SE & CO.KGAA

3 records

BC323

Active

Zea mays L. · Maize

Ivica Ikic

3 records

Boucalo

Active

Zea mays L. · Maize

Monsanto Technology, Missouri US

HU IT

2 records

Airone

Active

Zea mays L. · Maize

HOLDEN'S FOUNDATION SEEDS INC.

4 records

Amisti CS

Active

Zea mays L. · Maize

CAUSSADE SEMENCES

2 records

Amarillo

Active

Zea mays L. · Maize

VERNEUIL RECHERCHE

4 records

Noks

Active

Zea mays L. · Maize

Dziubetskyi, Borys Bebekh, Alina Bodenko, Natalia Plotka, Vitalii Haidash, Oleksandr Bondar, Tetiana Cherchel, Vladyslav Bernatskyi, Maksym Abelmasov, Oleksii Ilchenko, Larysa

3 records

NS 420

Active

Zea mays L. · Maize

Institut za ratarstvo i povrtarstvo, Novi Sad, Srbija

6 records

KWS Amatrio

Active

Zea mays L. · Maize

Rainer Leipert

3 records

Fazioli

Active

Zea mays L. · Maize

MONSANTO TECHNOLOGY

2 records

ZP 434

Active

Zea mays L. · Maize

Maise Research Institute Zemun Polje (SB)

6 records

Xeraco

Active

Zea mays L. · Maize

PANAM FRANCE SARL

2 records

Veselka MV

Active

Zea mays L. · Maize

Pashaly Olena Semenivna, Serikov Volodymyr Oleksiiovych, Varenyk Borys Fedorovych, Sokolov V'iacheslav Mykhailovych, Bielousov Anatolii Oleksandrovych,

3 records

UNK 74L

Active

Zea mays L. · Maize

Parii Myroslav Fedorovych

3 records

Vizyr

Active

Zea mays L. · Maize

Hontarovs`kyi Viacheslav Afanasiiovych, Fedko Mykola Mykolaiovych, Kyrpa Mykola IAkovych, Ilchenko Larysa Anatoliivna, Halechko Ivan Dmytrovych, Borysov Viktor Mykolaiovych, Bodenko Natalia Anatoliivna, Antoniuk Serhii Petrovych, Cherchel Vladyslav IUriio

3 records