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.
Brassica napus var. napus · Rapeseed
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Zea mays L. · Maize
SAATBAU LINZ EGEN
Zea mays L. subsp. mays (Maize Group) · Maize
KWS SAAT SE & CO.KGAA
Zea mays L. · Maize
Rene Baratin
Brassica napus var. napus · Rapeseed
DEUTSCHE SAATVEREDELUNG AG
Brassica napus var. napus · Rapeseed
Dieter Stelling
Hordeum vulgare L. · Barley
SVERIGES UTSÄDESFÖRENING SVALÖF
Triticum aestivum L. · Bread wheat
Strube, D
Pelargonium zonale (L.) L'Hér. · Horseshoe pelargonium
SCHUMANN INGEBORG
Triticum aestivum L. · Bread wheat
WIERSUM PLANTBREEDING
Rosa L. · Rose
Rosen Tantau| DE
Zea mays L. · Maize
Dr. Frank K. Roeber
Helianthus annuus L. · Sunflower
Frank Jozsef / Nemeth Gizella / Palvoelgyi Laszlo / Duruczne Ocsko Edit
Brassica napus var. napus · Rapeseed
RAPS Gbr Saatzucht Lundsgaard (DE)
Hordeum vulgare L. · Barley
Probstdorfer Saatzucht GmbH
Triticum aestivum L. · Bread wheat
Lantmännen SW Seed
Avena sativa L. · Oat
Svalöf Weibull (SE)
Triticum aestivum L. · Bread wheat
Asur Plant Breeding SAS Pôle Végétal de la Plaine d'Estrées
Hordeum vulgare L. · Barley
Sejet Planteforaedling I,S
Zea mays L. · Maize
Ragt, F
Zea mays L. subsp. mays (Maize Group) · Maize
PIONEER HI-BRED INTERNATIONAL
Rosa L. · Rose
POUW ROZEN B.V.
Zea mays L. · Maize
TAUCHER ROBERT
Triticum aestivum L. · Bread wheat
Saatzuchtwirtschaft Firlbeck GmbH + Co.KG