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.
Lolium perenne L. · Perennial ryegrass
Jan Wojciech Kaszuba / Anna Ostrowska
Hordeum vulgare L. · Barley
W WEIBULL
x Triticosecale Wittm. ex A. Camus · Triticale
LEMAIRE DEFFONTAINES S.A.S.
Hordeum vulgare L. · Barley
Nickerson International Research S.N.C., 63720 Chappes
Helianthus annuus L. · Sunflower
NUSEED EUROPE
Pisum sativum L. · Pea
Philippe Lonnet
Triticum durum Desf. · Durum wheat
Syngenta Seed, NL
Triticum durum Desf. · Durum wheat
Serasem, FR
Glycine max (L.) Merr. · Soybean
DEUTSCHE SAATVEREDELUNG AG
Brassica napus var. napus · Rapeseed
Thierry Ronsin
Eruca vesicaria (L.) Cav. subsp. sativa (Mill.) Thell. · Arugula
RIJK ZWAAN ZAADTEELT EN ZAADHANDEL B.V.
Helianthus annuus L. · Sunflower
Ragt, F
Triticum aestivum L. · Bread wheat
Stacja Hodowli Roślin MODZURÓW Grupa Szelejewo sp. z o.o.
Triticum aestivum L. subsp. spelta (L.) Thell. · Spelt
Delley Seeds and Plants Ltd, CH-1567 Delley
Hordeum vulgare L. · Barley
Secobra, F
Helianthus annuus L. · Sunflower
May Agro Tohumculuk A.S.Samanli Mah.Yigitler Cd.28,Bursa, Turkey
Pisum sativum L. · Pea
Limagrain UK
Pisum sativum L. · Pea
Van Waveren, D
Lolium perenne L. · Perennial ryegrass
STELLING DIETER
Pisum sativum L. · Pea
Syngenta UK Ltd
Vicia faba L. · Broad bean
NPZ Lembke
Agrostis capillaris L. · Common bent
VANDIJKE| VANDIJKE RESEARCH B.V.
Hordeum vulgare L. · Barley
Secobra, F
Helianthus annuus L. · Sunflower
Euralis Semences