NS Sumo Vita
ActiveHelianthus annuus L. · Sunflower
RO
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.
ES Strabella
TerminatedHelianthus annuus L. · Sunflower
Hysun 158T
ActiveHelianthus annuus L. · Sunflower
LG5639
Protection expiredHelianthus annuus L. · Sunflower
SK
2 records
Felix
TerminatedHelianthus annuus L. · Sunflower
IT
2 records
AS 33101
ActiveHelianthus annuus L. · Sunflower
UA
2 records
AS 35114
ActiveHelianthus annuus L. · Sunflower
UA
3 records
YeS Avalon
ActiveHelianthus annuus L. · Sunflower
Posunko Anton Olehovych, Shatsman Dmytro Oleksandrovych,
UA
2 records
YeS Bravus
ActiveHelianthus annuus L. · Sunflower
Posunko Anton Olehovych, Bushulian Oleh Volodymyrovych, Shatsman Dmytro Oleksandrovych,
UA
2 records
Toskana
TerminatedHelianthus annuus L. · Sunflower
Kovalov Volodymyr Hryhorovych, Zaitsev Oleksii Borysovych,
UA
2 records
Terner
ActiveHelianthus annuus L. · Sunflower
Tovarystvo z obmezhenoiu vidpovidalnistiu «TK ART-AHRO»
UA
2 records
STR456
TerminatedHelianthus annuus L. · Sunflower
Seedtec International Inc (US)
FR
1 record
Soltan
ActiveHelianthus annuus L. · Sunflower
Hyskie Ivan Mykolaiovych, Bohdan Ihor` Vyktorovych,
UA
2 records
SERELIA
ActiveHelianthus annuus L. · Sunflower
Joel Meunier
UA
1 record
Ramires
ActiveHelianthus annuus L. · Sunflower
Tovarystvo z obmezhenoiu vidpovidalnistiu «TK ART-AHRO»
UA
2 records
RA1001735
ActiveHelianthus annuus L. · Sunflower
RAGT 2N S.A.S
IT
1 record
Pronto OR7
ActiveHelianthus annuus L. · Sunflower
Skakunenko, Vladyslava
UA
2 records
Pikardiia KLP
TerminatedHelianthus annuus L. · Sunflower
Pryvatne Pidpryiemstvo "NASINNEVE"
UA
2 records
PHA 132
WithdrawnHelianthus annuus L. · Sunflower
Pioneer Hi-Bred International Inc (US)
FR
1 record
Paraizo 1000 KL Plius
TerminatedHelianthus annuus L. · Sunflower
Amelia Bertero
UA
1 record
PAC 2
TerminatedHelianthus annuus L. · Sunflower
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
FR
1 record
Pehas
TerminatedHelianthus annuus L. · Sunflower
Avramenko Oleksandr Oleksandrovych , Scherban` Nataliia Fedorivna, Scherban` Serhii Vasyl`ovych,
UA
1 record
Oris
ActiveHelianthus annuus L. · Sunflower
Tovarystvo z obmezhenoiu vidpovidalnistiu «Vseukrainskyi naukovyi instytut selektsii (VNIS)»
UA
2 records
NKARMONY
Protection expiredHelianthus annuus L. · Sunflower
SYNGENTA SEEDS AG, CH
FR
1 record