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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

Found in these crops

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.

CH 017 W 11

Terminated

Brassica napus var. napus · Rapeseed

Norddeutsche Pflanzenzucht Hans-Georg Lembke KG. Herrn Dr. Martin Frauen / Jürgen Noack

DE
2 records

C 604251

Terminated

Brassica napus L. · Rapeseed

Gertz Andreas

UA
3 records

BC 616

Terminated

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

Bc Institut d.d. Zagreb (HR)

HR
2 records

TH-1797

Application submitted

Vaccinium corymbosum L. · Highbush blueberry

Scott NeSmith

2 records

Helianthus annuus L. · Sunflower

MEUNIER JOEL

3 records

Sun Gold

Protection expired

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

Harris Moran Seed Company

2 records

AP 7126

Active

Gossypium hirsutum L. · Upland cotton

BASF AGRICULTURAL SOLUTIONS SEED US LLC

ES
2 records

NS14 4

Application submitted

Vaccinium corymbosum L. · Highbush blueberry

Vincent David Andrew Mazzardis

5 records

AL'FA

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

KLIMENKO NIKOLAJ NIKOLAEVICh / MAKSIMOV SERGEJ VASIL'EVICh

CZ
2 records

Anjou 284

Terminated

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

Limagrain Verneuil Holding (FR)

FR
2 records

Helianthus annuus L. · Sunflower

Frederic Poujeaud

UA
2 records

4 K 446

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Dietrich Hauer, Wolfgang Mechelke,

UA
2 records

Prunus persica (L.) Batsch · Peach

J.E.COS / A. CARRILLO / A.GUEVARA (IMIDA)

ES
4 records

AL'FA

Application submitted

Glycine max (L.) Merr. · Soybean

TRIUMPH SEED CO.

IT
2 records

7751 A

Active

Helianthus annuus L. · Sunflower

Tahir Gucer, Ibrahim Yilmaz, Veli Pekcan, Yalcin Kaya, Goksel Evci,

UA
3 records

12-309

Active

Cucumis sativus L. · Cucumber

Kees Reinink

UA
2 records

LA 06-52

Active

Ipomoea batatas (L.) Lam. · Sweet potato

Tara Smith^^^Christopher A. Clark^^^Arthur Q. Villordon^^^Don R. LaBonte

3 records

MG11543-23-004

Application submitted

hybrids between Vaccinium corymbosum L. and Vaccinium darrowii Camp

Ridley Bell, Joel Deveson

2 records

HJ-7

Active

Rubus L. subg. Rubus · Blackberry

Judith E. Johnson, Harold A. Johnson Jr.

3 records

Limonium sinense (Girard) Kuntze · Chinese statice

Hooijman Aloysius A. J.|Aalsmeer, NL

3 records

Solanum lycopersicum L. · Tomato

Seminis Vegetable Seeds

2 records

DK 255

Active

Zea mays L. · Maize

G.I.E. SOCKALB

3 records

Anjou 256

Terminated

Zea mays L. · Maize

Limagrain Europe S.A.S

2 records

BEGO 539

Terminated

Begonia x tuberhybrida Voss · Tuberous begonia

Ernst Benary Samenzucht GmbH

2 records

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