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.
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Pisum sativum L. · Pea
SELGEN A.S
Medicago sativa L. · Alfalfa
Vincent Beguier
Hordeum vulgare L. · Barley
Saaten-Union
Triticum durum Desf. · Durum wheat
SOCIETA PRODUTTORI SEMENTI S.P.A, IT
Triticum durum Desf. · Durum wheat
Societa Produttori Sementi S.p.A
Triticum aestivum L. · Bread wheat
Zeneca Seeds UK Ltd
Hordeum vulgare L. · Barley
Staatzucht Firlbeck GmbH & Co.KG
Medicago sativa L. · Alfalfa
Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE) , Agri-Obtentions S.A.
Helianthus annuus L. · Sunflower
Pierre GARRAUD
Triticum aestivum L. · Bread wheat
Caussade Semences, F
Medicago sativa L. · Alfalfa
Vaclav Stradal
Pisum sativum L. · Pea
Toft Plant Breeding APS
Brassica napus var. napus · Rapeseed
Patrice Jeanson
Helianthus annuus L. · Sunflower
Euralis Semences, F
Helianthus annuus L. · Sunflower
Euralis Semences, F
Triticum aestivum L. · Bread wheat
Sarl Adrien Momont, FR
Triticum aestivum L. · Bread wheat
SAS FLORIMOND DESPREZ VEUVE and FILS
Pisum sativum L. · Pea
PRODANA SEED A/S - DLF SEEDS A/S
Secale cereale L. · Rye
Waldemar Brukwinski, 60% Katarzyna Banaszak, 40%
Helianthus annuus L. · Sunflower
Euralis Semences, Mondonville FR
Triticum aestivum L. · Bread wheat
S.A.S. Florimond Desprez Veuve & Fils
Hordeum vulgare L. · Barley
Utah State University
Pisum sativum L. · Pea
NPZ UK Plant Breeding