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
LANTMÄNNEN SEED
Hordeum vulgare L. · Barley
Sejet Plantbreeding (DK)
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION US
Glycine max (L.) Merr. · Soybean
Sylvain Legay
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Brassica carinata A. Braun · Ethiopian mustard
Nuseed Global Innovation Ltd.
x Triticosecale Wittm. ex A. Camus · Triticale
Danko Hodowla Roslin Sp.z.o.o.
Helianthus annuus L. · Sunflower
NUSEED EUROPE
Triticum aestivum L. subsp. spelta (L.) Thell. · Spelt
Zoltán Bedő^^^László Láng^^^Ottó Veisz^^^Gyula Vida^^^Mariann Rákszegi
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION
Helianthus annuus L. · Sunflower
Jim Gerdes
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Zea mays L. · Maize
NICKERSON| Nickerson S.A.
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Helianthus annuus L. · Sunflower
NUSEED EUROPE
Sinapis alba L. · White mustard
VANDINTER RESEARCH B.V.
Allium cepa L. · Onion
Scott Hendricks
Sinapis alba L. · White mustard
Carneau Freres SA (FR)
Lolium perenne L. · Perennial ryegrass
Barenbrug Holland B.V. (Variety Administration)
Rosa L. · Rose
MEILLAND STAR ROSE
Brassica napus var. napus · Rapeseed
Raps GbR Saatzucht Lundsgaard
Zea mays L. · Maize
Purar Bozana, Bekavac Goran, Jockovic Djordje, Stojakovic Milislav,
Avena sativa L. · Oat
Aberystwyth University (IBERS)