Variety traits
Lodging is the displacement of stems from a vertical position or their breakage caused by root or stem factors. It is a critical variety trait that directly affects yield losses and harvesting efficiency.
Mentioned in descriptions 50 198 varieties reference book.
Lodging is a deviation of plants from a vertical position, which is categorized into root lodging and stem lodging. In the first case, tilting occurs due to weak root anchorage in the soil, while in the second, the stem bends or breaks due to insufficient straw strength under the load of the ear mass or stand density.
Lodging resistance is evaluated during state variety trials visually on a five-point scale before harvest, where high scores correspond to high resistance, and low scores to a tendency for crop collapse. Additionally, methods for measuring stem flexibility and calculating bending strength are employed.
This variety trait depends on the interaction between the genotype and growing conditions. Genetic resistance is determined by the presence of semi-dwarf genes, straw diameter, the strength of anatomical tissues, and lignin content, whereas external factors include nitrogen nutrition, seeding rate, and weather 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.
Sorghum x drummondii (Steud.) Millsp. & Chase · Sudangrass
GAYLAND WARD SEED CO. INC.
Tulipa L. · Tulip
J.A.Borst Bloembollen B.V.
Zea mays L. subsp. mays (Maize Group) · Maize
Syngenta Participations AG
x Triticosecale Wittm. ex A. Camus · Triticale
Shcechenko Olha IEvheniivna, Melnyk Vira Serhiivna, Kapustina Tetiana Borysivna, Chernobai Serhii Volodymyrovych, Riabchun Viktor Kuzmych,
Amaranthus L. · Amaranth
Zhuravel` Diana Vitaliivna, Voronkov Mykola Fedorovych, Hoptsii Tetiana Ivanivna,
Medicago sativa L. nothosubsp. varia (Martyn) Arcang. · Bastard Medic
Andrusiva Liudmyla Volodymyrivna, Tyshcenko Andrii Viktorovych, Vozhehova Raisa Anatoliivna, Tyshcenko Olena Dmytrivna,
Sorghum bicolor (L.) Moench · Sorghum
Prymak Iryna IUriivna, Karanda Tetiana Mykolaivna, Farafonov Viktor Anatoliiovych, Barbaruk Valentyna Tadeushivna, Piter Bohdan Chykaliuk, Larri Richardson,
Tulipa L. · Tulip
J.A.Borst Bloembollen B.V.
Glycine max (L.) Merr. · Soybean
Pat Grams
Tulipa L. · Tulip
Kaagman-Schooneman B.V.
Chrysanthemum L. · Chrysanthemum
C.B.A Research B.V.
Hordeum vulgare L. · Barley
Naumov, Oleksii Kozachenko, Mykhailo Vazhenina, Olha Colonechna, Olha Vasko, Nataliia
Lilium L. · Lily
Mak Breeding Rights B.V./Arroyo Rights B.V.
Helianthus annuus L. · Sunflower
Seedtec International Inc (US)
Zea mays L. · Maize
Harry Stine
Beta vulgaris Sugar Beet Group · Sugar beet
Strube D&S GMBH
Allium cepa L. var. cepa · Onion
Maciej Kobiński
Allium fistulosum L. · Welsh onion
Shabetia Oksana Mykolaivna, Tymchuk Viktor Mykhailovych, Litvinova Olena Oleksandrivna, Shabetia Viktor Volodymyrovych,
Pisum sativum L. · Pea
Sych Zenovii Deonyzovych, Stryhun Olena Petrivna, Lukach Vasyl` Stepanovych, Stryhun Viktor Markovych,
Avena sativa L. · Oat
Tarasenko Oleksandr Anatoliiovych, Sten`ko Volodymyr Illich, Solodushko Vira Pylypivna, Liaschenko Oleksandr Ivanovych,
Hordeum vulgare L. · Barley
Voronchykhina Oksana Mykolaivna, Lohvinenko IUrii Volodymyrovych, Dmytrenko Petro Petrovych,
Lolium multiflorum Lam. · Italian ryegrass
R2n S.A.S. (Societe RAGT 2N)
Chrysanthemum indicum L. · Indian chrysanthemum
Jacques Stamens (FR)
Helianthus annuus L. · Sunflower
Stelian Fuia