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Variety traits

Maturity group

Maturity group is a biological characteristic of a variety that determines the length of its growing season from emergence to full maturity. This trait is a key tool for planning agronomic operations and selecting varieties suited to the climatic conditions of a region.

Mentioned in descriptions 89 063 varieties reference book.

Maturity group represents a biological characteristic of a variety that determines the duration of the growing season from the moment of seedling emergence to the onset of harvest or full maturity. This trait directly influences the choice of production strategy, allowing agronomists to optimize harvest timing, minimize losses due to crop lodging or over-ripening, and adapt crops to local climate conditions, avoiding risks associated with early frosts or drought periods.

The assessment of the maturity group is conducted within the framework of state variety testing on specialized plots by comparing the variety under study with a zoned standard. The duration of the growing season in days is used as a quantitative indicator. The gradation of groups from early-maturing to late-maturing does not have uniform numerical boundaries for all species, as it is based on the biological characteristics of a specific crop and the conditions of the cultivation zone.

Membership in a maturity group is determined by the genetic characteristics of the variety, however, the rate of progression through phenological phases depends on abiotic factors such as temperature regime, moisture availability, and photoperiodism. Cultivation techniques, including sowing dates and fertilization systems, can adjust maturation timing but do not change the genetic classification of a variety into a specific group.

There is an interconnection between the maturity group and biochemical indicators of product quality, such as protein and gluten content in the grain. For effective utilization of this trait, it is necessary to rely on the results of local trials, as a variety may perform differently under various soil and climatic conditions.

Sources10

Breakdown by crop

Maize maturity group 5 061 Tomato maturity group 2 293 Sunflower maturity group 1 708 Maturity group — soft wheat 1 598 Maize maturity group 1 583 Grape Ripening Period 1 407 Potato maturity group 1 217 Barley Maturity Group 1 086 Pepper maturity groups 1 065 Apple Ripening Groups 890 Bean maturity group 807 Peach Maturity Group 794 Pea Maturity Group 779 Maturity Group — Soybean 777 Rapeseed maturity group 739 Maturity group — sugar beet 700 Cucumber Maturity Groups 670 Lettuce maturity group 589 Grape Ripening Period 579 Maturity group — Perennial ryegrass 564 Sweet Cherry Ripening Period 507 Carrot Maturity Groups 415 Melon maturity groups 410 Maturity group — white cabbage 384

Found in these crops

Maize 4 386 Maize 1 378 Sunflower 1 347 Tomato 1 205 Bread wheat 1 015 Barley 753 Potato 741 Soybean 740 Sugar beet 589 Bell pepper 582 Rapeseed 550 Common bean 518

Varieties that feature this in their description

Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.

TARN

Withdrawn

Triticum aestivum L. · Bread wheat

BELLOY

ES
1 record

Szegedi SC 278/Talbot

Terminated

Zea mays L. · Maize

Pinter Zoltan / Szel Sandor / Kalman Laszlo / Buza Lajosne / Nemeth Janos / Devenyi Karolyne

HU
1 record

SW7473

Withdrawn

Medicago sativa L. subsp. sativa · Alfalfa

S&W SEED COMPANY

IT
1 record

SY Stimulus

Application submitted

Zea mays L. · Maize

Syngenta Crop Protection AG

IT
1 record

TGF534

Withdrawn

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

TURKISH GENETICS TOHUMCULUK, AS

ES
1 record

Svit khliba

Active

Triticum aestivum L. · Bread wheat

Instytut fiziolohii roslyn i henetyky Natsionalnoi akademii nauk Ukrainy

UA
2 records

Syrena S steryl`nyi

Terminated

Zea mays L. · Maize

Moskalenko Volodymyr Fedorovych, Melnyk Vitalii IAkovych,

UA
2 records

TFO3188

Active

Helianthus annuus L. · Sunflower

MEUNIER JOEL

UA
2 records

Svitanok v Nitstsi

Terminated

Cucurbita pepo L. · Field pumpkin

Scherbatiuk Ruslan Viktorovych, Vovk Zhana Mykolaivna, Pozniak Oleksandr Vasyl`ovych,

UA
2 records

Tanho MV

Terminated

Zea mays L. · Maize

Barsukov Ihor Petrovych, Ivleva Tatiana Volodymyrivna, Kamyshan Taisiia Petrivna, Chupikov Mykola Mykhailovych, Kozubenko Leonid Vasyl`ovych,

UA
2 records

SW3211

Application submitted

Medicago sativa L. · Alfalfa

Mark Smith

UA
2 records

TFI2938

Active

Helianthus annuus L. · Sunflower

Zhoel` Meun`er

UA
2 records

Syntetyk 240

Active

Triticum aestivum L. · Bread wheat

Morhun Bohdan Volodymyrovych, Sandetska Nadiia Vasylivna, Morhun Volodymyr Vasylovych, Rybalka Oleksandr Illich,

UA
2 records

TFC3769A

Active

Helianthus annuus L. · Sunflower

Joel Meunier

UA
2 records

Svolder

Terminated

Trifolium repens L. · White clover

Hagberg, Arne

SE
2 records

SY Beam

Active

Zea mays L. · Maize

Syngenta Crop Protection AG

IT
1 record

Teton F 1

Withdrawn

Allium cepa L. · Onion

Seminis Vegetables (NL)

SI
1 record

SY219823

Active

Hordeum vulgare L. · Barley

James Wroth

UA
2 records

SVE 86015

Withdrawn

Triticum aestivum L. · Bread wheat

SVALOF AB

ES
1 record

Talisman

Terminated

Zea mays L. · Maize

Sitailo Valentyn Anatoliiovych, Prysiazhniuk Ihor Vasyl`ovych, Ivanenko Serhii Mykhailovych,

UA
2 records

SV2508 (ALS)

Withdrawn

Beta vulgaris Sugar Beet Group · Sugar beet

SESVANDERHAVE N.V./S.A.

IT
1 record

Talento

Protection expired

x Triticosecale Wittm. ex A. Camus · Triticale

Svalof Weibull AB

FR
1 record

SV4522NB

Withdrawn

Allium porrum L. · Leek

Jason Cavatorta

UA
2 records

Talbot F1

Active

Pisum sativum L. · Pea

David Webster

UA
2 records

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