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 (Maize Group) · Maize
LES GOURGUES-G-CARGILL
Pisum sativum L. · Pea
GSN Semences SAS (FR)
Oryza sativa L. · Rice
SOCIETÀ AGRICOLA GIULIO MELZI D'ERIL S.S.
Secale cereale L. · Rye
SEMILLAS BATLLE, S.A.
Triticum aestivum L. · Bread wheat
Groupement Agricole Essonnois (FR)/Inst. de Recherche MENNESSON (FR)
Sorghum bicolor (L.) Moench · Sorghum
KWS SAAT SE & CO.KGAA
Brassica napus var. napus · Rapeseed
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG. Herrn Dr. Martin Frauen / Jürgen Noack
Sinapis alba L. · White mustard
Michaela Schlathölter
Brassica napus L. · Rapeseed
AGRIGENETICS INC
Hyssopus officinalis L. · Hyssop
BURNICHI FLOAREATUDORA CATALINAVASILE FLORENTINA-IONELA
Tulipa L. · Tulip
Triflor Breeding Rights B.V.
Hordeum vulgare L. · Barley
FRANCK DR. PETER| Dr. Peter Franck Pflanzenzucht Oberlimpurg
Solanum tuberosum L. · Potato
Olsztyńska Hodowla Ziemniaka i Nasiennictwo OLZNAS-CN sp. z o.o.
Lilium L. · Lily
Mak Breeding Rights B.V.
Brassica napus var. napus · Rapeseed
Danisco semences SARL (FR)
Tulipa L. · Tulip
J.A.Borst Bloembollen B.V.
Zea mays L. · Maize
Joel Meunier
Rosa L. · Rose
NIELS DINES POULSEN
Dahlia Cav. · Dahlia
Maatschap van der Linden en Zoon
Gossypium hirsutum L. · Upland cotton
SEMILLAS BATLLE, S.A.
Paeonia L. · Peony
Horobets Vasyl Fedorovych
Chrysanthemum indicum L. · Indian chrysanthemum
William E. DUFFETT (US)/JESSEL H. WALTER (FR)
Hordeum vulgare L. · Barley
Centre de Recherches Agronomiques de Gembloux (BE)
x Triticosecale Wittm. ex A. Camus · Triticale
AGRI OBTENTIONS / INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE (I.N.R.A.)