Petpasyel
TerminatedPetunia Juss. · Petunia
David William Kerley, Priscilla Grace Kerley
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.
Petunia Juss. · Petunia
David William Kerley, Priscilla Grace Kerley
Lilium L. · Lily
Vletter & Den Haan Beheer B.V
Castanea crenata Siebold & Zucc. · Japanese chestnut
Toshihiro Saito^^^Norio Takada^^^Yutaka Sawamura^^^Sougo Nishio^^^Toshio Hirabayashi^^^Akihiko Sato^^^Hidenori Kato^^^Noriyuki Onoue^^^Makoto Uchida
Malus domestica (Suckow) Borkh. · Apple
Alfeo Agosti
Dahlia Cav. · Dahlia
Verwer-Dahlia's B.V.
Zea mays L. subsp. mays (Maize Group) · Maize
KWS SAAT SE & Co. KGaA, Limagrain Europe S.A.S.
Gypsophila paniculata L. · Baby's-breath
HATANO SHOJI^^^Klara Dehan
Robinia pseudoacacia L. · Black locust
Németh Jenő János
Lilium L. · Lily
Testcentrum voor Siergewassen B.V.
Robinia pseudoacacia L. · Black locust
Németh Jenő János
Limonium sinense (Girard) Kuntze · Chinese statice
Limongaudio S.S. Agricola di Del Gaudio Giovanni e Rosa
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
NOVA SIRI GENETICS S.R.L.
Prunus persica (L.) Batsch · Peach
Joan Bonany^^^Simó Alegre^^^Cristian Fontich^^^Celia Cantin^^^Arsène Maillard^^^Laurence Maillard
Prunus persica (L.) Batsch · Peach
ALESSANDRO LIVERANI
Gerbera L. · Gerbera
FLORIST HOLLAND B.V.
Pelargonium L'Hér. ex Ait. · Geranium
Novartis Seeds B.V.
Humulus lupulus L. · Common hop
Simon H. Steiner Hopfen GmbH
Gypsophila paniculata L. · Baby's-breath
HATANO SHOJI^^^Klara Dehan
Pelargonium zonale (L.) L'Hér. · Horseshoe pelargonium
Martin Geibel
Gerbera L. · Gerbera
FLORIST HOLLAND B.V.
Kalanchoe blossfeldiana Poelln. · Flaming Katy
Knud Jepsen
Hippeastrum Herb. · Amaryllis
Ben van Geest
Zea mays L. · Maize
KWS SAAT SE & Co. KGaA, Limagrain Europe S.A.S.
Hippeastrum Herb. · Amaryllis
RUDOLPH LEONARDUS MARIA BERBEE