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 Seeds
Zea mays L. · Maize
SYNGENTA FRANCE S.A.S.
Glycine max (L.) Merr. · Soybean
P.H.PETERSEN SAATZUCHT LUNDSGAARD
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
KENDELL HELLEWELL
Raphanus sativus L. var. oleiformis Pers. · Oil radish
ILVO-PLANT 39
Glycine max (L.) Merr. · Soybean
Erik Gagnon
Brassica napus L. · Rapeseed
DEUTSCHE SAATVEREDELUNG AG
Solanum lycopersicum L. · Tomato
Seminis Vegetable Seeds
Hordeum vulgare L. · Barley
Claus Einfeldt
Lolium perenne L. · Perennial ryegrass
Saatzucht Steinach GmbH & Co KG
Chrysanthemum L. · Chrysanthemum
WALTER H. JESSEL, JR. & WILLIAM E. DUFFETT
Helianthus annuus L. · Sunflower
Jean Pierre Dufourcq
Hordeum vulgare L. · Barley
Syngenta Seeds
Triticum durum Desf. · Durum wheat
Probstdorfer Saatzucht GmbH&Co KG (AT)
Lupinus angustifolius L. · Narrow-leaf lupin
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Helianthus annuus L. · Sunflower
Galin Georgiev Georgiev
Triticum aestivum L. · Bread wheat
Nickerson International Research S.N.C.
Triticum aestivum L. · Bread wheat
Caussade Semences SA (FR)
Zea mays L. · Maize
Syngenta Crop Protection,CH
Glycine max (L.) Merr. · Soybean
Stine Harry
Sinapis alba L. · White mustard
Lukas H. Wolters c/o Euro Grass BV
Triticum aestivum L. subsp. spelta (L.) Thell. · Spelt
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Triticum aestivum L. · Bread wheat
Selgen, a.s. Vyzkumne centrum SELTON, s.r.o.
Triticum durum Desf. · Durum wheat
Syngenta Seeds SAS, FR