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.

Erica

Terminated

Zea mays L. · Maize

NORTHRUP KING

1 record

Dorlen

Active

Zea mays L. · Maize

Zakorchmennyi, Viktor

2 records

Diadema

Application submitted

Zea mays L. · Maize

Solomenko Andrii Ivanovych, Breus Oksana Serhiivna, Kulish Ol`ha IUriivna, Parii IUliia Oleksandrivna, Parii Myroslav Fedorivych, Parii IAroslav Fedorovych, Parii Fedir Mykytovych,

2 records

DMS Iuniti

Active

Zea mays L. · Maize

Borysov Viktor Mykolaiovych

2 records

DMS Grant

Withdrawn

Zea mays L. · Maize

SPFE Company MAIS

1 record

Dobosz

Withdrawn

Zea mays L. · Maize

Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy

1 record

DKC6317

Withdrawn

Zea mays L. · Maize

MONSANTO TECHNOLOGY

1 record

CUMBERLAND

Active

Zea mays L. · Maize

Ken Christensen

2 records

CSM9361

Terminated

Zea mays L. · Maize

CAUSSADE SEMENCES

1 record

Bordo

Application submitted

Zea mays L. · Maize

Nahorniak, Mykhailo Nahorniak, Bohdan

2 records

Boian 277 MV

Terminated

Zea mays L. · Maize

Dibrova Ivan IErofeevych, Khromenko Vitalii Oleksandrovych, Havryliuk Viktor Mykolaiovych, Larchenko Kateryna Andriivna, Morhun Volodymyr Vasylovych,

1 record

Asgrow 88

Terminated

Zea mays L. · Maize

ASGROW SEED COMPANY

1 record

Algor

Active

Zea mays L. · Maize

LABOULET SEMENCES

1 record

Agrola 52

Application submitted

Zea mays L. · Maize

Todor Gubatov

1 record

Sperlona

Active

Zea mays L. · Maize

Stefanoni Clara

1 record

KWS Beaudor

Withdrawn

Zea mays L. · Maize

KWS SAAT SE & CO.KGAA

1 record

Kupava

Terminated

Zea mays L. · Maize

Mel`nyk Taras Vitaliiovych, Moskalenko Volodymyr Fedorovych, Mel`nyk Vitalii IAkovych,

2 records

Krasnodars`kyi 291 AMV

Terminated

Zea mays L. · Maize

Varlamova Iryna Mykolaivna, Zhukov Mykhailo Pylypovych, Prylypskyi Mykola Ivanovych, Normov Oleksandr Oleksandrovych, Chebotar`ov Maksym Mykolaiovych, Ohnianyk Liudmyla Hryhorivna, Suprunov Anatolii Ivanovych, Lavrenchuk Mykola Fedorovych, Shats`ka Ol`ha

1 record

Kneja 577

Active

Zea mays L. · Maize

Mima Ilchovska, Valya Bachiyska

2 records

Khorol SV

Active

Zea mays L. · Maize

Savchuk Liudmyla Fedorivna, Matseiko Ivan Ivanovych, Hopchak Tetiana Mykolaivna, Sen Oleksandr Vitaliiovych, Bodenko Natalia Anatoliivna, Sytnychenko Vira Petrivna, Perevertun Larysa Ivanivna, Hodz` Mykola Vasyl`ovych, Zaika Stanislav Polikarpovych,

2 records

DN Drah

Active

Zea mays L. · Maize

Khimich Marharyta Olehivna, Plotka Vitalii Vitaliiovych, Motrenko Volodymyr Ivanovych, Olizko Oleksii Petrovych, Bondar Tetiana Mykolaivna, Abelmasov Oleksii Viktorovych, Ilchenko Larysa Anatoliivna, Bodenko Natalia Anatoliivna, Cherchel Vladyslav IUriiov

2 records