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.
Chrysanthemum L. · Chrysanthemum
VAN DER JAGT MARTINUS
Zea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Brassica napus var. napus · Rapeseed
Syngenta Crop Protection AG, CH
Zea mays L. · Maize
Pioneer Overseas Corporation, Pioneer Hi-Bred International Inc.
Hordeum vulgare L. · Barley
SAATZUCHTWIRTSCHAFT OTTO BREUSTEDT GMBH
Triticum aestivum L. · Bread wheat
LEMAIRE DEFFONTAINES SEMENCES
Helianthus annuus L. · Sunflower
Petran Alexandru-Viorel
Triticum durum Desf. · Durum wheat
Ets Claude Camille Benoist SA (FR)
Gerbera L. · Gerbera
SCHREURS PETRUS JUDOCUS WILHELMUS
Triticum durum Desf. · Durum wheat
RAGT 2N S.A.S
Pisum sativum L. · Pea
SELGEN A.S
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Raphanus sativus L. var. oleiformis Pers. · Oil radish
Paul Baecker / Michaela Schlathölter
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Pisum sativum L. · Pea
Carneau Freres SA (FR)
Triticum aestivum L. · Bread wheat
Sejet Planteforaedling I,S
Hordeum vulgare L. · Barley
Probstdorfer Saatzucht Ges.m.b.H & Co KG
Glycine max (L.) Merr. · Soybean
Dukic Vojin, Miladinovic Jegor, Vidic Milos,
Triticum aestivum L. · Bread wheat
Poznanska Hodowla Roslin Sp. z o.o
Chrysanthemum L. · Chrysanthemum
VAN DER JAGT MARTINUS
Festuca pratensis Huds. · Meadow fescue
Instytut Hodowli I Aklimatyzacji Roslin (PL)
Helianthus annuus L. · Sunflower
RAGT 2N S.A.S
Glycine max (L.) Merr. · Soybean
Semences Prograin Inc