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.
Dactylis glomerata L. · Cocksfoot
Barenbrug Holland BV (NL)
Helianthus annuus L. · Sunflower
RAGT 2N S.A.S
Triticum aestivum L. · Bread wheat
SECOBRA RECHERCHES S.A.S
Sorghum bicolor (L.) Moench · Sorghum
Franck CHAUVEAU
Helianthus annuus L. · Sunflower
Euralis Semences FR
Glycine max (L.) Merr. · Soybean
Saatzucht Donau GmbH & Co.KG
Glycine max (L.) Merr. · Soybean
Gerardo Bartolome
Lolium perenne L. · Perennial ryegrass
Carneau Freres SA (FR)
Lolium perenne L. · Perennial ryegrass
DSV Zaden Nederland B.V.
Glycine max (L.) Merr. · Soybean
Gerardo Bartolome
Helianthus annuus L. · Sunflower
RAGT 2N S.A.S
Avena sativa L. · Oat
Wiersum Plantbreeding B.V.
Avena sativa L. · Oat
Leena Pietilä, Boreal Plant Breeding Ltd
Triticum aestivum L. · Bread wheat
Selgen, a.s. Vyzkumne centrum SELTON, s.r.o.
Vicia faba L. var. minuta (hort. ex Alef.) Mansf. · Tick Bean
Norddeutsche Pflanzenzucht DE
Triticum aestivum L. · Bread wheat
APSOVSEMENTI S.P.A.
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
RAGT SA (FR)
Hordeum vulgare L. · Barley
Nilsson, Bengt
Helianthus annuus L. · Sunflower
Steve Thompson
Vicia faba L. var. minuta (hort. ex Alef.) Mansf. · Tick Bean
RAGT 2n, FR
Avena sativa L. · Oat
Výzkumné Centrum Selton s.r.o., Selgen A.S.
Brassica napus var. napus · Rapeseed
Almut Hampe
Zea mays L. · Maize
Syngenta participation AG
Brassica napus var. napus · Rapeseed
Lantmaennen ek foer