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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.

Kovalivska

Terminated

Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass

Korobko IUliia Anatoliivna, Kravchenko Viktor Mykolaiovych, TROTsENKO Anatolii Hryhorovych, Borysov Viktor Mykolaiovych,

UA
2 records

Kuban`

Protection expired

Glycine max (L.) Merr. · Soybean

Sonets` Viktor Andriiovych, Pylypchenko Andrii Vasylovych, Tymchenko Viktor Naumovych, Marc Ham, Andre Letourneau, Alain Letourneau,

UA
2 records

Kros252M

Active

Zea mays L. · Maize

Derzhavna ustanova Instytut zernovykh kultur Natsionalnoi akademii ahrarnykh nauk Ukrainy

UA
2 records

Krynytsia

Terminated

Glycine max (L.) Merr. · Soybean

Kobyzieva Liubov Nykyforivna, Sokol Tetiana Volodymyrivna, Tymchuk Serhii Mykhailovych, Matushkin Viktor Oleksiiovych, Chernyshenko Pavlo Volodymyrovych, Moshkova Olena Mykolaivna, Riabukha Serhii Stanislavovych,

UA
2 records

Kros203S

Active

Zea mays L. · Maize

Derzhavna ustanova Instytut zernovykh kultur Natsionalnoi akademii ahrarnykh nauk Ukrainy

UA
2 records

Leonessa

Application submitted

Secale cereale L. · Rye

E.N.E.A. - DIPARTIMENTO AGROBIOTECNOLOGIE - UNITA' DI PROGETTO SEMENTI E VIVAISMO / ISEA S.R.L.

IT
1 record

KSP1

Active

Ipomoea batatas (L.) Lam. · Sweet potato

LEE BYUNG CHANCHO EUN-GI

RO
1 record

LE14273

Active

Brassica napus var. napus · Rapeseed

Reinhard Hemker

UA
1 record

LDZ25431

Application submitted

Zea mays L. · Maize

Lidea France SAS, FR

BG
1 record

LDZ24427

Application submitted

Zea mays L. · Maize

Lidea France SAS, FR

BG
1 record

Kosmichnyi

Terminated

Stevia rebaudiana (Bertoni) Bertoni · Sweet leaf

Sahanova Tamara Pavlivna, Yendruzhiievs`ka Liubov Pavlivna, Stefaniuk Volodymyr Iosypovych,

UA
2 records

Ksenyia

Active

Helianthus annuus L. · Sunflower

Rotaru Vitalii Fedorovych, Rotaru Ihor Fedorovych, Anaschenko Aleksandr Viktorovych, Rotaru Trudor Hryhoriiovych,

UA
2 records

LDZ23241

Application submitted

Zea mays L. · Maize

LIDEA FRANCE SAS

IT
1 record

Kros302M

Active

Zea mays L. · Maize

Abelmasov Oleksii Viktorovych, Bodenko Natalia Anatoliivna, Cherchel Vladyslav IUriiovych, Dziubetskyi Borys Volodymyrovych,

UA
2 records

Lena

Terminated

Solanum tuberosum L. · Potato

Pomorsko Mazurska Hodowla Ziemniaka Sp.z o.o. z siedziba w Strzekecinie

PL
2 records

Krutians`kyi

Terminated

Lactuca sativa L. var. crispa L. · Leaf lettuce

Horova Tamara Korniivna, Khareba Olena Vasylivna, Pozniak Oleksandr Vasyl`ovych, Kondratenko Serhii Ivanovych, Nesyn Volodymyr Mykolaiovych, Korniienko Serhii Ivanovych, Tkalych IUrii Vadymovych,

UA
2 records

Kredyt MV

Terminated

Zea mays L. · Maize

Tereshcuk Serhii Mykolaiovych, Kalynchuk Oleh Ivanovych, Sykalova Olena Valentynivna, Ivleva Tetiana Volodymyrivna, Barsukov Ihor Petrovych, Kamyshan Taisiia Petrivna, Kozubenko Leonyd Vasyl`ovych, Chupikov Mykola Mykhailovych,

UA
2 records

Zea mays L. · Maize

Antoniuk Serhii Petrovych, Cherchel Vladyslav IUriiovych, Dziubetskyi Borys Volodymyrovych,

UA
2 records

Laskovaia mama

Application submitted

Triticum aestivum L. · Bread wheat

Solomentsev Petro, Solomentsev Stepan

UA
2 records

LB 309 MVK

Terminated

Zea mays L. subsp. Mays · Corn

Serikov Volodymyr Oleksiiovych, Sokolov Viacheslav Mykhailovych, Bielousov Anatolii Oleksandrovych,

UA
2 records

LB 208 NMV

Terminated

Zea mays L. · Maize

Bielousov Anatolii Oleksandrovych

UA
2 records

Kros293M

Active

Zea mays L. · Maize

Bodenko Natalia Anatoliivna, Cherchel Vladyslav IUriiovych, Dziubetskyi Borys Volodymyrovych,

UA
2 records

Leila

Protection expired

Hordeum vulgare L. · Barley

Rustica Prograin Genetique SA (FR)

FR
2 records

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