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.
Helianthus annuus L. · Sunflower
GORBAChENKO VALENTINA DANILOVNA / GORBAChENKO OLEG FEDOROVICh / GORBAChENKO FEDOR IVANOVICh / USATENKO TAT'YaNA VASIL'EVNA / LUChKIN NIKOLAJ SERGEEVICh / BURLYaEVA EVGENIYa GRIGOR'EVNA / ZhITNIK NADEZhDA ALEKSANDROVNA
Avena nuda L. · Naked oat
SELGEN A.S
Zea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Secale cereale L. · Rye
PRZEDSIęBIORSTWO NASIENNE "ROLNAS" SP. Z O.O.
Helianthus annuus L. · Sunflower
STRUBE ESPAÑA, S.A.
Zea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Kalanchoe blossfeldiana Poelln. · Flaming Katy
AB Breeding B.V.
Medicago sativa L. · Alfalfa
GIE GRASS (FR)
Pisum sativum L. · Pea
BARBIERU ANCUTA
Dactylis glomerata L. · Cocksfoot
PADANA SEMENTI ELETTE S.R.L.
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Zea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Zea mays L. · Maize
Pioneer Overseas Corporation, Pioneer Hi-Bred International Inc.
Triticum aestivum L. · Bread wheat
PZO-Pflanzenzucht Oberlimpurg
Triticum aestivum L. · Bread wheat
Poljoprivredni Institut Osijek, HR
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Zea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Zea mays L. subsp. mays (Popcorn Group) · Popcorn
AG Alumni Seed, USA
Medicago sativa L. · Alfalfa
Poljoprivredni Institut Osijek, HR
Oryza sativa L. · Rice
Semillas Certificadas Castells S.L.
Pisum sativum L. · Pea
PURE LINE SEEDS