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
Olivier Cottet
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Helianthus annuus L. · Sunflower
LIDEA FRANCE SAS
Helianthus annuus L. · Sunflower
RAGT 2N S.A.S
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION
Helianthus annuus L. · Sunflower
Olivier Soulie
Helianthus annuus L. · Sunflower
LIDEA FRANCE SAS
Helianthus annuus L. · Sunflower
NUSEED EUROPE
Helianthus annuus L. · Sunflower
MAS SEEDS
Helianthus annuus L. · Sunflower
Euralis Semences
Helianthus annuus L. · Sunflower
Olivier Soulie
Triticum aestivum L. · Bread wheat
Florimond Desprez Veuve et Fils, FR
Helianthus annuus L. · Sunflower
Olivier Soulie
Glycine max (L.) Merr. · Soybean
RAGT 2N S.A.S
Triticum aestivum L. · Bread wheat
RAGT 2n
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
x Triticosecale Wittm. ex A. Camus · Triticale
RAGT 2n
Hordeum vulgare L. · Barley
SYNGENTA SEEDS A.G.
Triticum aestivum L. · Bread wheat
Wiersum Plantbreeding B.V.
x Triticosecale Wittm. ex A. Camus · Triticale
RAGT 2n
Triticum aestivum L. · Bread wheat
RAGT 2N S.A.S
Helianthus annuus L. · Sunflower
RAGT 2N S.A.S
Triticum durum Desf. · Durum wheat
RAGT 2n
Helianthus annuus L. · Sunflower
PIONEER OVERSEAS CORPORATION