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
Stuart Gowers, The New Zealand Institute for Plant and Food Research Limited
Helianthus annuus L. · Sunflower
MAY AGRO SEED COPR.
Alstroemeria L. · Alstroemeria
Van Staaveren.
Allium fistulosum L. · Welsh onion
SSC JP
Brassica napus var. napus · Rapeseed
Dirk Decherf
Hydrangea paniculata Siebold · Panicled hydrangea
Wood Timothy D
Oryza sativa L. · Rice
LUGANO LEONARDO SRL
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Walther Faedi^^^Lorenzo Ballini^^^Giorgio Baroni^^^Gianluca Baruzzi^^^Pierluigi Lucchi^^^Paolo Sbrighi^^^Matteo Birolli
Triticum aestivum L. · Bread wheat
NDSU Research Foundation
Oryza sativa L. · Rice
Sardo Piemontese Sementi Soc. Coop. Società Agricola
Pisum sativum L. · Pea
Syngenta Seeds B.V.
Medicago sativa L. · Alfalfa
ISTITUTO SPERIMENTALE
Glycine max (L.) Merr. · Soybean
Lidea France S.A.S
Brassica napus var. napus · Rapeseed
LIDEA FRANCE SAS
Triticum durum Desf. · Durum wheat
Südwestdeutsche Saatzucht GmbH&Co.KG
Triticum durum Desf. · Durum wheat
Saatzucht Donau GmbH & Co.KG
Lilium L. · Lily
Mak Breeding Rights B.V.
Linum usitatissimum L. · Common flax
Terre de Lin Sca (FR)
Pisum sativum L. · Pea
RAGT 2N S.A.S
Sinapis alba L. · White mustard
Lammers Seed Options B.V.
Raphanus sativus L. var. oleiformis Pers. · Oil radish
PHP PETERSEN
Oryza sativa L. · Rice
Almo S.p.A.
Hordeum vulgare L. · Barley
CARLSBERG A/S
Triticum durum Desf. · Durum wheat
Florimond Desprez Veuve et Fils, FR