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.
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Rampp
Helianthus annuus L. · Sunflower
Hanzhelo Mykola Hryhorovych, Krut`ko Vasyl` Ivanovych, Karapira Serhii Ivanovych, Varenyk Borys Fedorovych, Syvenko Oleksandr Anatoliiovych, Syvenko Valentyna Ivanivna, Kolomatska Valeriia Pavlivna, Makliak Kateryna Mykolaivna, Kyrychenko Viktor Vasylovyc
Zea mays L. · Maize
Joel Meunier
Zea mays L. · Maize
CAUSSADE SEMENCES
Zea mays L. · Maize
FOURNEAU Michael
Allium cepa L. · Onion
Ger Bimsdeboer
Tulipa L. · Tulip
J.A.Borst Bloembollen B.V.
Tulipa L. · Tulip
Sylvestris B.V.
Zea mays L. · Maize
Maize Research Institute - Kneja (BG)
Coriandrum sativum L. · Coriander
ROEBBELEN| Prof. Dr.Dr. h.c. G. Roebbelen
Triticum aestivum L. · Bread wheat
SW Seed BV
Rosa L. · Rose
Chris Warner (GB)
Paeonia L. · Peony
Horobets` Vasyl` Fndorovych
Helianthus annuus L. · Sunflower
CECOSA
Iris L. · Iris
Iris Nova V.O.F.
Pisum sativum L. · Pea
Clause Semences SA (FR)
Brassica napus L. · Rapeseed
DEUTSCHE SAATVEREDELUNG AG
Zea mays L. · Maize
Khromenko Vitalii Oleksandrovych, Havryliuk Viktor Mykolaiovych, Larchenko Kateryna Andriivna, Morhun Volodymyr Vasylovych,
Hordeum vulgare L. · Barley
Secobra Recherches, FR
Linum usitatissimum L. · Common flax
Sytnik Ihor Danylovych
Helianthus annuus L. · Sunflower
BORGES AGRICULTURAL & INDUSTRIAL EDIBLE OILS, S.A.U.
Zea mays L. · Maize
FREIHERR VON MOREAU SAATZUCHT
Hordeum vulgare L. · Barley
NICKERS.RPB LTD&NICKER.IN
Zea mays L. subsp. mays (Maize Group) · Maize
CIBA GEIGY SA (CH) (CH)