Variety traits
Helianthus annuus L.
Sunflower lodging is the loss of plant stability, leading to yield reduction and difficulties in mechanical harvesting. A distinction is made between root lodging, due to weakened root anchorage in the soil, and stem lodging, resulting from stem breakage or bending.
In the reference 1 035 varieties crop Sunflower, where this is mentioned in the description.
In the state variety testing system, sunflower lodging resistance is evaluated on a 5-point scale. The assessment is conducted visually up to harvest, taking into account the plants' ability to straighten. A score of 5 is assigned to non-lodging varieties, while 1 point corresponds to severe lodging that makes mechanical harvesting impossible.
In addition to the point score, specialists record the type of damage, the plant development stage, and the conditions that triggered the phenomenon, such as stand density, weather conditions, or disease infection. The risk of sunflower lodging increases significantly with pathologies that weaken stem and root tissues, for example, Phoma infection.
Key agrotechnical factors for preventing lodging are the optimization of sowing density and balanced nitrogen nutrition, which prevents the formation of excessively thin stems. Morphological features of the plants, including the high windage of the flower head, also play a significant role in resistance to wind loads.
General information about the subject — on the page Lodging.
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Helianthus annuus L. · Sunflower
N. Nenov, Y. Simeonova-Stoyanova, P. Shindrova, P. Petrov, V. Velkov, A. Piskov, D. Petakov, L. Nikolova, M. Hristov, V. Encheva, F. Tsvetkova, V. Venkov
Helianthus annuus L. · Sunflower
Chepolkina Tetiana Fedorivna
Helianthus annuus L. · Sunflower
Kapustian Maryna Viktorivna, Kapustian Volodymyr Vasylovych,
Helianthus annuus L. · Sunflower
MONSANTO TECHNOLOGY
Helianthus annuus L. · Sunflower
Tovarystvo z obmezhenoiu vidpovidalnistiu «IEvrosem»
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower
Jean-Francois Bizard
Helianthus annuus L. · Sunflower
LIMAGRAIN VERNEUIL HOLDING S.A.
Helianthus annuus L. · Sunflower
KWS SAAT SE & CO.KGAA
Helianthus annuus L. · Sunflower
Rotaru Tudor Grigore
Helianthus annuus L. · Sunflower
LIMAGRAIN EUROPE S.A.
Helianthus annuus L. · Sunflower
LIMAGRAIN EUROPE
Helianthus annuus L. · Sunflower
Syngenta Crop Protection AG
Helianthus annuus L. · Sunflower
Koval`ov Volodymyr Hryhorovych, Zaitsev Oleksii Borysovych,
Helianthus annuus L. · Sunflower
Guenter Seitz
Helianthus annuus L. · Sunflower
S.I.G.C.O. RESEARCH Inc. (US)
Helianthus annuus L. · Sunflower
Research Institute for Cereals and Industrial Crops-Fundulea (RO)
Helianthus annuus L. · Sunflower
Hanenkov Ivan Ivanovych
Helianthus annuus L. · Sunflower
Frederic Poujeaud
Helianthus annuus L. · Sunflower
PIONEER HI-BRED INTERNATIONAL
Helianthus annuus L. · Sunflower
Tsevma Volodymyr Mykolaiovych, Doroshevskyi Oleksandr Volodymyrovych,
Helianthus annuus L. · Sunflower
Cvejic, Sandra Dusanic, Nenad Jockovic, Milan Miklic, Vladimir Mykhno, Mykola Jocic, Sinisa
Helianthus annuus L. · Sunflower
Kucheryava Olena Ivanivna, Hyske Ivan Mykolayovich, Buchuchanu Mikhail Ivanovich,
Helianthus annuus L. · Sunflower
Molodchenkova Olha Olehivna, Babich Valerii Ivanovych, Hanzhelo Mykola Hryhorovych, Libenko Mykola Oleksandrovych, Varenyk Borys Fedorovych, Krut`ko Vasyl` Ivanovych,