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
Sebastien Chatre
Brassica napus var. napus · Rapeseed
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION
Zea mays L. · Maize
Rainer Leipert
Pisum sativum L. · Pea
SELGEN A.S
Triticum aestivum L. · Bread wheat
Strube Research GmbH&Co KG
Triticum durum Desf. · Durum wheat
RAGT SA (FR)
Helianthus annuus L. · Sunflower
Euralis Semences
Brassica napus var. napus · Rapeseed
Reinhard Hemker
Hordeum vulgare L. · Barley
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Hordeum vulgare L. · Barley
Syngenta UK Ltd
Brassica oleracea L. (White Cabbage Group) · White cabbage
Paul Degreef
Glycine max (L.) Merr. · Soybean
ALAIN LETOURNEAU
x Triticosecale Wittm. ex A. Camus · Triticale
PZO-Pflanzenzucht Oberlimpurg
Triticum aestivum L. · Bread wheat
Poljoprivredni Institut Osijek, HR
Helianthus annuus L. · Sunflower
Syngenta Crop Protection,CH
Triticum aestivum L. subsp. spelta (L.) Thell. · Spelt
Dr. Christoph Kling in Universität Hohenheim - Landessaatzuchtanstalt -
Zea mays L. · Maize
SYNGENTA FRANCE S.A.S.
Hordeum vulgare L. · Barley
Syngenta Crop Protection AG, CH
Lolium perenne L. · Perennial ryegrass
RAGT 2N S.A.S
Triticum aestivum L. · Bread wheat
Saatzucht Donau GmbH & Co.KG
Linum usitatissimum L. · Common flax
WIERSUM PLANTBREEDING
Hordeum vulgare L. · Barley
SAATZUCHT DONAU GES.M.B.H. & COKG