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
Stupak Iryna IUriivna, Rusavskyi Vladyslav Leonidovych, Parii Myroslav Fedorovych, Parii IUliia Oleksandrivna, Kyryienko Serhii Oleksandrovych, Parii IAroslav Fedorovych, Parii Fedir Mykytovych,
Helianthus annuus L. · Sunflower
Rustica Prograin Genetique SA (FR)/DAHLGREN COMPANY (US)
Helianthus annuus L. · Sunflower
Tovarystvo z obmezhenoiu vidpovidalnistiu «TK ART-AHRO»
Helianthus annuus L. · Sunflower
Guillaume Bellier
Helianthus annuus L. · Sunflower
Syngenta Crop Protection AG, CH
Helianthus annuus L. · Sunflower
Didier Sauvaire
Helianthus annuus L. · Sunflower
Kovalov Volodymyr Hryhorovych, Zaitsev Oleksii Borysovych,
Helianthus annuus L. · Sunflower
Kalinichenko Artem Oleksandrovych
Helianthus annuus L. · Sunflower
Cuprun Oleh Hryhorovych, Udovichenko Anna IUriivna, Shepilov Borys Petrovych, Andriienko Viktor Valentynovych, Leonova Nina Mykolaivna, Kuzmyshena Nadiia Viktorivna, Kolomatska Valeriia Pavlivna, Syvenko Valentyna Ivanivna, Makliak Kateryna Mykolaivna, Ky
Helianthus annuus L. · Sunflower
Dobroudja Agricultural Institute - General Toshevo (BG)
Helianthus annuus L. · Sunflower
Euralis Semences
Helianthus annuus L. · Sunflower
Zhan-Liuk Madef
Helianthus annuus L. · Sunflower
Estelle Bonleu
Helianthus annuus L. · Sunflower
Fedosieieva Alla Viktorivna, Burlov Viktor Vasylovych,
Helianthus annuus L. · Sunflower
Guenter Seitz
Helianthus annuus L. · Sunflower
M. Hristov, Y. Simeonova-Stoyanova, P. Petrov, V. Velkov, V. Encheva, P. Shindrova, A. Piskov, D. Petakov, L. Nikolova, N. Nenov, V. Venkov
Helianthus annuus L. · Sunflower
Helianthus annuus L. · Sunflower
Euralis Semences
Helianthus annuus L. · Sunflower
LIMAGRAIN GENETICS GRANDES CULTURES
Helianthus annuus L. · Sunflower
Seedtec International Inc (US)
Helianthus annuus L. · Sunflower
Parii Myroslav Fedorovych, Parii IAroslav Fedorovych
Helianthus annuus L. · Sunflower
Euralis Semences
Helianthus annuus L. · Sunflower
Petrenkova Vira Pavlivna, Veselyi Vitalii Oleksandrovych, Kuzmyshena Nadiia Viktorivna, Syvenko Valentyna Ivanivna, Kolomatska Valeriia Pavlivna, Makliak Kateryna Mykolaivna, Kyrychenko Viktor Vasylovych,
Helianthus annuus L. · Sunflower
Koretskyi Oleksandr Yevheniiovych, Shatsman Dmytro Oleksandrovych