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
Syngenta Crop Protection,CH
Pisum sativum L. · Pea
Toft Plant Breeding APS
Lolium perenne L. · Perennial ryegrass
Freudenberger, D
Pisum sativum L. · Pea
WEBSTER DAVID
Medicago sativa L. · Alfalfa
Vincent Beguier
Helianthus annuus L. · Sunflower
Pioneer Overseas Corporation, USA
Helianthus annuus L. · Sunflower
Syngenta France SAS
Avena strigosa Schreb. · Black oat
Panam France sarl (FR)/Panam Chili (CL)
Glycine max (L.) Merr. · Soybean
Saatzucht Donau, A
x Triticosecale Wittm. ex A. Camus · Triticale
Danko Hodowla Roslin Sp z.o.o. (PL)
Hordeum vulgare L. · Barley
Saatzucht Donau, A
Solanum tuberosum L. · Potato
R.P.GRAVELAND
Helianthus annuus L. · Sunflower
Euralis Semences, F
Helianthus annuus L. · Sunflower
Rene Baraten
Pisum sativum L. · Pea
Syngenta Seeds B.V.
Vicia faba L. · Broad bean
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Pisum sativum L. · Pea
Pure Line Seeds, USA
Lolium x hybridum Hausskn. · Hybrid ryegrass
Freudenberger, D
Secale cereale L. · Rye
Schmiedchen Brigitta, Menzel Jutta, Wilde Peer,
Pisum sativum L. · Pea
Syngenta Seeds, NL
Helianthus annuus L. · Sunflower
Euralis Semences, F
Allium cepa L. · Onion
Paul Degreef
Linum usitatissimum L. · Common flax
JTSD Ltd
Cannabis sativa L. · Hemp
Instytut Włókien Naturalnych i Roślin Zielarskich Państwowy Instytut Badawczy