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.
Malus Mill. · Apple
Sempra Praha a.s., CZ
Helianthus annuus L. · Sunflower
UPL FRANCE
Zea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Zea mays L. · Maize
Roland Debeuf
Zea mays L. · Maize
DOW AgroSciences
Zea mays L. · Maize
Spirou Spiros
Zea mays L. · Maize
ROUCOLLE JOEL
Zea mays L. · Maize
RAGT 2n
Helianthus annuus L. · Sunflower
GIE Sockalb (FR)
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
KENDELL HELLEWELL
Zea mays L. · Maize
PETER KONCZOL
Helianthus annuus L. · Sunflower
Lidea France S.A.S
Avena sativa L. · Oat
Sebastien Cuvelier, RAGT 2n
Helianthus annuus L. · Sunflower
LIMAGRAIN EUROPE
Pisum sativum L. · Pea
Tourneur Grandes Cultures Obtentions SNC (FR)
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Helianthus annuus L. · Sunflower
Institut za ratarstvo i povrtarstvo, Novi Sad
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Triticum aestivum L. · Bread wheat
Hybrinova Sa (FR)
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION