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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.

BOSAARC

Withdrawn

Hypericum L. · St. John's wort

H. & B.R. van den Bosch B.V.

1 record

C17-34

Application submitted

Vitis vinifera L. · Common grape vine

Alessandra Gentile^^^Stefano Giovanni La Malfa^^^Gaetano Distefano^^^Elisabetta Giuseppa Agata Maria Nicolosi^^^Francesco Scollo^^^Stefania Maria Bennici^^^Filippo Salvatore Ferlito

1 record

BRM533934

Terminated

Brassica oleracea L. (Broccoli Group) · Broccoli

Seminis Vegetable Seeds

1 record

Bombay Candy

Terminated

Celosia argentea L. var. cristata (L.) Kuntze · Cockscomb

Henricus G.A. van der Boog

1 record

307848

Active

Cynara cardunculus L. · Cardoon

Nunhems B.V.

1 record

14-712-4

Active

Gladiolus L. · Gladiolus

For Ever Bulbs B.V.

1 record

Arratwentyfour

Active

Vitis vinifera L. · Common grape vine

Shachar Karniel

1 record

Berlingo

Terminated

Lilium L. · Lily

Van Zanten Flowerbulbs B.V

1 record

Bistro

Active

Allium cepa L. var. aggregatum G. Don · Shallot

Arjen Jacob Smit

1 record

A-246B

Application submitted

hybrids between Vaccinium corymbosum L. and Vaccinium darrowii Camp

John R Clark

1 record

216210875

Active

Allium porrum L. · Leek

Nunhems Netherlands B.V.

1 record

'1334 Demeter'

Application submitted

Vaccinium corymbosum L. · Highbush blueberry

Gospodarstwo Szkółkarskie Anna Ciepłucha-Kowalska

1 record

Arezzo

Terminated

Chrysanthemum L. · Chrysanthemum

Pieters Plant Production B.V.B.A.

1 record

Balu

Active

Erica gracilis J. C. Wendl. · Slender heath

Helmut Hiedl

1 record

Beau Regard

Terminated

Iris xiphium x Iris tingitana · Dutch iris

Select Bulbes S.A.R.L.

1 record

Balspunred

Terminated

Petunia Juss. · Petunia

MARGARET M HURKMAN

1 record

Banjax

Terminated

Chrysanthemum L. · Chrysanthemum

Cleangro Ltd

1 record

Barkinpocit

Active

Limonium sinuatum (L.) Mill. · Statice

Barberet & Blanc S.A.

1 record

BALROPI

Terminated

Xerochrysum bracteatum (Vent.) Tzvelev · Strawflower

Matthew Turner

1 record

Alice Bigi

Terminated

Prunus persica (L.) Batsch · Peach

MAZZA GIANCARLO

2 records

BALAZDAPI

Terminated

Verbena L. · Vervain

SCOTT C TREES

1 record

Acapulco

Terminated

Hippeastrum Herb. · Amaryllis

Jochem Vreugdenhil

1 record

B17-2

Application submitted

Vitis vinifera L. · Common grape vine

Alessandra Gentile^^^Elisabetta Giuseppa Agata Maria Nicolosi^^^Gaetano Distefano^^^Francesco Scollo^^^Stefania Maria Bennici^^^Filippo Salvatore Ferlito^^^Stefano Giovanni La Malfa

1 record

AGZELL 440

Active

Vitex agnus-castus L. · Chaste tree

Bernd Büter

1 record

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