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.
Pisum sativum L. · Pea
Limagrain UK
Brassica oleracea L. (White Cabbage Group) · White cabbage
Moravoseed Spol. S.r.o
Helianthus annuus L. · Sunflower
Prograin Genetique (FR)
Pisum sativum L. · Pea
Selgen, a.s. Vyzkumne centrum SELTON, s.r.o.
Glycine max (L.) Merr. · Soybean
FREIHERR VON MOREAU SAATZUCHT
Glycine max (L.) Merr. · Soybean
Saatzucht Donau GmbH & Co.KG
Avena sativa L. · Oat
Saatzucht Bauer GmbH & Co KG
Zea mays L. · Maize
SAATBAU LINZ EGEN
Triticum aestivum L. · Bread wheat
SAATZUCHT STRENG-ENGELEN GMBH&CO. KG
Glycine max (L.) Merr. · Soybean
Saatzucht Donau GmbH, Probstdorf AT
Brassica napus var. napus · Rapeseed
Reinhard Hemker
Triticum aestivum L. subsp. spelta (L.) Thell. · Spelt
Uniwersytet Warminsko-Mazurski w Olsztynie (University of Warmia and Mazury in Olsztyn)
Avena sativa L. · Oat
SARL ADRIEN MOMONT ET FILS, FR
Brassica napus var. napus · Rapeseed
RAGT 2n, FR
Helianthus annuus L. · Sunflower
KWS SAAT SE & CO.KGAA
Brassica napus var. napus · Rapeseed
SYNGENTA SEEDS AG| Syngenta Seeds AG
Helianthus annuus L. · Sunflower
Verneuil Recherche SA (FR)
Helianthus annuus L. · Sunflower
Monsanto S.A.S., Monbequi (FR)
Zea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Triticum aestivum L. · Bread wheat
Sylvie DUTRIEZ
Helianthus annuus L. · Sunflower
Rustica Prograin Genetique SA (FR)/IWS (BG)
Triticum aestivum L. · Bread wheat
Saatzucht Donau GmbH & Co.KG
Alopecurus pratensis L. · Meadow foxtail
Eidgen. Forschungsanstalt für Agrarökologie und Landbau Zürich-Reckenholz
Glycine max (L.) Merr. · Soybean
Claude-Alain Bétrix