UN 713 RKhA
ActiveHelianthus annuus L. · Sunflower
Koval`ov Volodymyr Hryhorovych, Zaitsev Oleksii Borysovych,
Variety traits
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.
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.
Helianthus annuus L. · Sunflower
Koval`ov Volodymyr Hryhorovych, Zaitsev Oleksii Borysovych,
Zea mays L. · Maize
KWS SAAT SE & CO.KGAA
Solanum lycopersicum L. · Tomato
Yurkevych Larysa Nazarivna, Potopal`s`kyi Anatolii Ivanovych,
Zea mays L. · Maize
Havryliuk Viktor Mykolaiovych, Ponomarenko Halyna Ivanivna, Morhun Volodymyr Vasylovych, Lytus Mykola Volodymyrovych, Blashchuk Mykhailo Ivanovych
Zea mays L. · Maize
Khromenko Vitalii Oleksandrovych, Kalinchuk Oleh Ivanovych, Tereshcuk Serhii Mykolaiovych,
Zea mays L. · Maize
Prof. Dr. A. E. Melchinger / INAKTIV Versuchsstation für Pflanzenzüchtung Eckartsweier Herrn Dr. Wolfgang Schipprack
Alstroemeria L. · Alstroemeria
Pierre TURC & Fils SARL (FR)
Brassica rapa L. subsp. pekinensis (Lour.) Hanelt · Napa cabbage
Hari Besels
Spinacia oleracea L. · Spinach
Kees Reinink
Prunus avium (L.) L. · Sweet cherry
Lietuvos agrarinių ir miškų mokslų centro filialas Sodininkystės ir daržininkystės institutas
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Enza Zaden Beheer B.V.
Solanum lycopersicum L. · Tomato
Clause Semences SA (FR)
Solanum lycopersicum L. · Tomato
YAEL JOSSPH
Fragaria L. · Strawberry
Kopan Volodymyr Pavlovych, Kopan` Kira Mykolaivna,
Zea mays L. · Maize
Melnyk Taras Vitaliiovych, Melnyk Vitalii IAkovych,
x Triticosecale Wittm. ex A. Camus · Triticale
Bilynska Olena Volodymyrivna, Ohurtsov IUrii IEvhenovych, Sviatchenko Serhii Ivanovych, Chernobai Raisa Andriivna, Chernobai Serhii Volodymyrovych, Shcypak Hennadii Vasylovych,
Vitis vinifera L. · Common grape vine
Dimitar Babrikov, Venelin Roychev, Agricultural University - Plovdiv (BG)
Solanum melongena L. · Eggplant
Hari Besels
Glebionis coronaria (L.) Cass. ex Spach · Crown daisy
Doslidna stantsiia "Maiak" Instytutu ovochivnytstva i bashtannytstva Natsionalnoi akademii ahrarnykh nauk Ukrainy
Melilotus albus Medik. · White sweet clover
Bortnovskyi Vitalii Mykolaiovych, Horenskyi Vitalii Mykhailovych, Buhaiov Vasyl Dmytrovych,
Allium cepa L. · Onion
Ger Bimsdeboer
Zea mays L. · Maize
Boreiko Vasyl` Sydorovych
Triticum aestivum L. · Bread wheat
SEMILLAS BATLLE, S.A.
Zea mays L. · Maize
Halushcenko Serhii Valeriiovych, Parii IAroslav Fedorovych, Parii Myroslav Fedorovych,