Melsemper
ActiveLolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass
ILVO-PLANT 39
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.
Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass
ILVO-PLANT 39
Cucumis melo L. · Melon
ASGROW SEED CO
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
ILVO-PLANT 39
Solanum tuberosum L. · Potato
Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR
Lolium perenne L. · Perennial ryegrass
MOMMERSTEEG INTERNATIONAL
Solanum lycopersicum L. · Tomato
SEMILLAS FITO, S.A.
Zea mays L. · Maize
HOLDEN'S FOUNDATION SEEDS INC.
Lolium multiflorum Lam. · Italian ryegrass
DPT VOOR PLANTENGENETICA EN -VEREDELING - D.REHEUL /CEBECO SEEDS
Coriandrum sativum L. · Coriander
Kosarieva Raisa Fedorivna, Omel`chenko Ihor IEhorovych,
Zea mays L. · Maize
Williiam Bordoncle
Zea mays L. · Maize
FREIHERR VON MOREAU SAATZUCHT
Zea mays L. · Maize
MONSANTO TECHNOLOGY
Lactuca sativa L. · Lettuce
HAZERA GENETICS
Phaseolus vulgaris L. · Common bean
RANALLI PAOLO
Glycine max (L.) Merr. · Soybean
Borovyk Vira Oleksandrivna, Osinii Mykola Leonidovych, Baranchuk Vitalii Anatoliiovych, Mykhailov Viktor Oleksandrovych, Klubuk Viktor Vasylovych,
Cucumis sativus L. · Cucumber
Nunhems B.V.
Lactuca sativa L. · Lettuce
Domaine Public (FR)
Prunus cerasus L. · Sour cherry
Information not available - Contact NL authorities
Petroselinum crispum (Mill.) Nyman ex A. W. Hill · Parsley
Graines Voltz S.A.
Oryza sativa L. · Rice
BILONI MASSIMO ITALY
Hordeum vulgare L. · Barley
W. von Borries-Eckendorf GmbH & Co.KG
Phaseolus vulgaris L. · Common bean
RANALLI PAOLO
Rosa L. · Rose
ALAIN ANTOINE MEILLAND (FR)
Solanum lycopersicum L. · Tomato
HM.Clause S.A.S.