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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.

Spica

Active

Spinacia oleracea L. · Spinach

DK
2 records

Sportivo

Active

Solanum lycopersicum L. · Tomato

NL
2 records

Spooktacular

Terminated

Cucurbita pepo L. · Field pumpkin

NL
2 records

Purple King

Terminated

Phaseolus vulgaris L. · Common bean

NL
2 records

Rostello

Active

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

CZ
2 records

Rambla

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

UNITED GENETICS SEEDS CO

PT
2 records

Sonata

Protection expired

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

SK
2 records

Soft Taste

Protection expired

Cucurbita pepo L. · Field pumpkin

RO
2 records

Snowflake

Terminated

Allium cepa L. var. cepa · Onion

NL
2 records

Sofocle

Active

Solanum lycopersicum L. · Tomato

HU
2 records

Romar

Terminated

Raphanus sativus L. var. sativus · Radish

NL
2 records

Solnohradka

Active

Pyrus communis L. · European pear

CZ
4 records

Ruta øtofte

Terminated

Brassica napus L. var. napobrassica (L.) Rchb. · Rutabaga

DK
2 records

Slávka

Active

Capsicum annuum L. · Bell pepper

CZ
2 records

Pretan

Terminated

Allium porrum L. · Leek

NL
3 records

Prudo

Terminated

Solanum lycopersicum L. · Tomato

NL
2 records

Proma

Terminated

Dactylis glomerata L. · Cocksfoot

CZ
3 records

Silvia

Active

Pyrus communis L. · European pear

RO
2 records

Robben

Active

Allium fistulosum L. · Welsh onion

HU
2 records

Rubiero

Terminated

Capsicum annuum L. · Bell pepper

NL
2 records

Sirio

Terminated

Foeniculum vulgare Mill. · Fennel

IT
2 records

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