LG5577
TerminatedHelianthus annuus L. · Sunflower
LIMAGRAIN EUROPE S.A.
IT
3 records
Diseases
Phoma black stem of sunflower
Helianthus annuus L.
A fungal disease of sunflower caused by Phoma macdonaldii (Leptosphaeria lindquistii), affecting all vegetative organs and flower heads. It is characterized by the appearance of necrotic spots, which on stems take on a distinctive blue-black color with a metallic sheen.
In the reference 479 varieties crop Sunflower, where this is mentioned in the description.
The pathogen of the disease is the fungus Phoma macdonaldii, which also has an ascomycete stage of development, Leptosphaeria lindquistii. Symptoms appear on leaves at the 3–4 pair of true leaves stage as brown spots with a yellow margin, which spread to the stem through the petioles. At the points of petiole attachment, large dark brown or blue-black necroses occur, which can girdle the stem and lead to a loss of tissue integrity.
Infection of the flower heads manifests as the appearance of brown spots on their dorsal side, which leads to the formation of shriveled seeds or their complete underdevelopment. In sunflower breeding, there are no lines with complete genetic resistance to the pathogen, so work is carried out exclusively in the direction of selecting tolerant hybrids based on the evaluation of their phenotypic response under conditions of natural or artificial inoculation.
General information about the subject — on the page Phoma rot.
Varieties of Sunflower mentioned in the description
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.
Tellus
ActiveHelianthus annuus L. · Sunflower
Rotaru Igor Tudor, Rotaru Vitalie Tudor, Rotaru Tudor Grigore,
UA
4 records
NS Konstantin
ActiveHelianthus annuus L. · Sunflower
Institut za ratarstvo i povrtarstvo, Novi Sad
UA
6 records
NS H 6341
ActiveHelianthus annuus L. · Sunflower
SANDRA CVEJIC / SINISA JOCIC / GORAN MALIDZA / DRAGANA MILADINOVIC / VLADIMIR MIKLIC / NENAD DUSANIC
UA
4 records
NS H 498
ActiveHelianthus annuus L. · Sunflower
SINISA JOCIC / SANDRA CVEJIC / GORAN MALIDZA / VLADIMIR MIKLIC / NENAD DUSANIC
UA
4 records
LG5650M
TerminatedHelianthus annuus L. · Sunflower
LIMAGRAIN GENETICS GRANDES CULTURES S.A.
IT
3 records
Krasela
ActiveHelianthus annuus L. · Sunflower
prof.Nina Nenova,prof.Galin Georgiev, prof.Valentina Encheva
BG
4 records
Enigma CLP
TerminatedHelianthus annuus L. · Sunflower
Dobroudja Agricultural Institute - General Toshevo (BG)
BG
3 records
T 228 B
TerminatedHelianthus annuus L. · Sunflower
AGRA SEED RESEARCH INTERN
ES
FR
2 records
SY Shango
Application submittedHelianthus annuus L. · Sunflower
Syngenta Crop Protection AG, CH
FR
IT
2 records
RA8125647
ActiveHelianthus annuus L. · Sunflower
RAGT 2N S.A.S
IT
UA
3 records
Pronto
ActiveHelianthus annuus L. · Sunflower
Skakunenko, Vladyslava
PT
UA
3 records
Brio
TerminatedHelianthus annuus L. · Sunflower
PACIFICO
ES
IT
6 records
Alambra
TerminatedHelianthus annuus L. · Sunflower
Rustica Prograin Genetique SA (FR)/Institute of Field & Vegetable Crops (RS)
FR
IT
2 records
MAS 860AR
ActiveHelianthus annuus L. · Sunflower
MAS SEEDS
IT
2 records
NS Imisun
ActiveHelianthus annuus L. · Sunflower
Dusanic Nenad, Miklik Vladimir, Malida Goran, Jocic Sinisa,
UA
3 records
MAS 812HOCP
ActiveHelianthus annuus L. · Sunflower
MAS SEEDS
IT
2 records
Yevro
ActiveHelianthus annuus L. · Sunflower
Luk'ianchyk IUrii Ivanovych, Karpenko Oleksandr Oleksandrovych, Parii IUliia Oleksandrivna, Parii Myroslav Fedorovych, Parii IAroslav Fedorovych, Parii Fedir Mykytovych,
UA
3 records
Vehas
ActiveHelianthus annuus L. · Sunflower
Kyrychenko Maryna Serhiivna, Babych Viktoriia Olehivna, Parii Myroslav Fedorovych, Parii IAroslav Fedorovych,
UA
3 records
SY Neoma CLP
ActiveHelianthus annuus L. · Sunflower
Syngenta Crop Protection,CH
SK
2 records
Soniachnyi nastrii
ActiveHelianthus annuus L. · Sunflower
Parii Anna Fedorivna, Parii Myroslav Fedorovych, Parii IAroslav Fedorovych, Parii Fedir Mykytovych,
UA
2 records
Shenon
ActiveHelianthus annuus L. · Sunflower
Kyrychenko Maryna Serhiivna, Babych Viktoriia Olehivna, Parii Fedir Mykytovych, Parii Myroslav Fedorovych, Parii IAroslav Fedorovych,
UA
3 records
San Luka
ActiveHelianthus annuus L. · Sunflower
Valentina Encheva, Dimitar Petakov, Michael Christov, Alexander Piscov, Pepa Shindrova, Fota Tsvetkova, Peter Ivanov, Velko Velkov, Peter Petrov, Yordanka Stoyanova,
UA
3 records
NS-H-6046
ActiveHelianthus annuus L. · Sunflower
Dusanic Nenad, Gvozdenovic Sandra, Jocic Sinisa,
UA
4 records