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.
Festuca pratensis Huds. · Meadow fescue
Barenbrug Holland B.V.
Zea mays L. · Maize
Olivier Dumont
Brassica napus var. napus · Rapeseed
Nelly Guguin, Jean-Pierre Despeghel,
Glycine max (L.) Merr. · Soybean
Santiago Fleming
Brassica napus var. napus · Rapeseed
Nelly Guguin
Helianthus annuus L. · Sunflower
LES GOURGUES-G-CARGILL
Zea mays L. · Maize
Monsanto Technology, USA
Zea mays L. · Maize
Zhoel` Roukol
Brassica napus var. napus · Rapeseed
Monsanto Technology LLC, US
Zea mays L. · Maize
Monsanto Technology, USA
Zea mays L. · Maize
Monsanto Technology, USA
Vicia sativa L. · Common vetch
Carneau Freres SA (FR)
Pisum sativum L. · Pea
Poznanska Hodowla Roslin Sp. z o.o
Triticum aestivum L. · Bread wheat
SELGEN A.S
Hordeum vulgare L. · Barley
Saatzucht Donau GmbH & Co.KG
Triticum aestivum L. · Bread wheat
Svensson, Gunnar/Jönsson, Jan Ö
Brassica napus L. · Rapeseed
Dieter Stelling
Zea mays L. · Maize
Pierre CAROLO
Hordeum vulgare L. · Barley
Pajbjergfonden (DK)
Triticum aestivum L. · Bread wheat
LIMAGRAIN NEDERLAND
x Triticosecale Wittm. ex A. Camus · Triticale
SW Seed BV
Beta vulgaris Sugar Beet Group · Sugar beet
VANDERHAVE SUGAR BEET SEED
Allium fistulosum L. · Welsh onion
Petr Klapshtie
Triticum aestivum L. · Bread wheat
Vija Strazdina, Maija Ceraukste, SPP State Stende Cereals Breeding Institute