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.
Sorghum bicolor (L.) Moench · Sorghum
RAGT 2N S.A.S
Zea mays L. · Maize
Monsanto Technology, USA
Brassica napus var. napus · Rapeseed
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Triticum durum Desf. · Durum wheat
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Hordeum vulgare L. · Barley
Daniel Skoro
Helianthus annuus L. · Sunflower
Petran Alexandru-Viorel
x Triticosecale Wittm. ex A. Camus · Triticale
ITTU GHEORGHESAULESCU NICOLAEITTU MARIANAMUSTATEA POMPILIU
Glycine max (L.) Merr. · Soybean
Letourneau Andre, Letourneau Alain,
Zea mays L. · Maize
Sorghum bicolor (L.) Moench · Sorghum
RAGT 2N S.A.S
Helianthus annuus L. · Sunflower
LABOULET SEMENCES
Helianthus annuus L. · Sunflower
Joel Meunier
Hordeum vulgare L. · Barley
Daniel Skoro
Helianthus annuus L. · Sunflower
Eugenio Tassinari
Avena sativa L. · Oat
Mattson, Bengt
Hordeum vulgare L. · Barley
SAATZUCHT HANS SCHWEIGER & CO OHG
Triticum aestivum L. · Bread wheat
Prezemyslaw Matysik
Triticum aestivum L. · Bread wheat
SELGEN A.S
Zea mays L. · Maize
Stephane Melkior
Pisum sativum L. · Pea
Selgen a.s., CZ
Hordeum vulgare L. · Barley
Nickerson International Research SNC (FR)
Sorghum bicolor (L.) Moench · Sorghum
Franck CHAUVEAU
Hordeum vulgare L. · Barley
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Lupinus albus L. · White lupin
Groupe Centre Atlantique SCA (FR)