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.
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
HM.CLAUSE
Solanum tuberosum L. · Potato
Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR
Daucus carota L. · Carrot
Bejo Zaden B.V.
Phaseolus vulgaris L. · Common bean
BALTZIS NIKOLAOS (GR)
Glycine max (L.) Merr. · Soybean
Stephanie Franck
Zea mays L. subsp. mays (Maize Group) · Maize
R 2n (FR)
Brassica oleracea L. (White Cabbage Group) · White cabbage
THE KIBAN
Medicago sativa L. nothosubsp. varia (Martyn) Arcang. · Bastard Medic
Heiti Kotkas 75%, Jaan Mets 25%
Pisum sativum L. · Pea
E. Uzunova, H. Manuelyan, Y. Lichev, N. Dimitrova
Zea mays L. · Maize
AGROALIMENTARE SUD S.P.A.
Triticum aestivum L. · Bread wheat
Dobroudja Agricultural Institute - General Toshevo (BG)
Glycine max (L.) Merr. · Soybean
ALAIN LETOURNEAU
Helianthus annuus L. · Sunflower
Stepanov IEvhenii Olehovych, Parii IUliia Oleksandrivna, Parii Myroslav Fedorovych, Parii IAroslav Fedorovych, Parii Fedir Mykytovych,
Trifolium incarnatum L. · Crimson clover
DEUTSCHE SAATVEREDELUNG AG
Brassica napus L. · Rapeseed
SVALOF AB
Raphanus sativus L. var. oleiformis Pers. · Oil radish
Rafał Markiewicz
Sorghum bicolor (L.) Moench · Sorghum
RAGT 2N S.A.S
Avena sativa L. · Oat
Johannes Laurson 50%,Ilmar Tamm 20%,Hans Küüts 15%,Ivi Küüts 10%,Kaljo Kask 5%
Zea mays L. subsp. mays (Maize Group) · Maize
PIONEER HI-BRED INT.INC/PIONEER OVERSEAS CORP.
Oryza sativa L. · Rice
Konstantin Kamishev
Zea mays L. subsp. mays (Maize Group) · Maize
Coop de Pau SCA (FR)
Secale cereale L. · Rye
Ing. Gustav Pammer, Bundesanstalt für Pflanzenbau und Samenp
Zea mays L. · Maize
AGROALIMENTARE SUD S.P.A.
Sorghum bicolor (L.) Moench · Sorghum
Advanta US Inc