NK 1242
TerminatedHelianthus annuus L. · Sunflower
NORTHRUP KING
ES
1 record
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.
NS H 8063
ActiveHelianthus annuus L. · Sunflower
Grahovac Nada, Gvozdenac Sonja, Radeka Iija, Jockovic Milan, Jocic Sinisa, Cvejic Sandra,
UA
2 records
Novo Ale
ActiveHelianthus annuus L. · Sunflower
Reva IAroslav Mykolaiovych
UA
2 records
Monarkh
Application submittedHelianthus annuus L. · Sunflower
Mandrov, Al`bert
UA
2 records
Machete
ActiveHelianthus annuus L. · Sunflower
Yanul` Larysa Mykolaivna, Yanul` Viktor Pavlovych, Khrystov Mykhayl,
UA
2 records
Leyila
ActiveHelianthus annuus L. · Sunflower
Zhan-Liuk Madef
UA
2 records
LHA270/03
ActiveHelianthus annuus L. · Sunflower
LIMAGRAIN EUROPE S.A.
IT
1 record
LHA452/66
TerminatedHelianthus annuus L. · Sunflower
LIMAGRAIN GENETICS S.A.
IT
1 record
LHA270/01
ActiveHelianthus annuus L. · Sunflower
LIMAGRAIN EUROPE S.A.
IT
1 record
Lassa
ActiveHelianthus annuus L. · Sunflower
Kapustian Maryna Viktorivna, Kapustian Volodymyr Vasylovych,
UA
2 records
LG5677
WithdrawnHelianthus annuus L. · Sunflower
LIMAGRAIN EUROPE
BG
1 record
KWS Helia 04 RO
TerminatedHelianthus annuus L. · Sunflower
Martin Gansmann
UA
1 record
Lateral
ActiveHelianthus annuus L. · Sunflower
Hanenkov Ivan Ivanovych
UA
2 records
Kortesa
ActiveHelianthus annuus L. · Sunflower
Malinovskyi Serhii Volodymyrovych
UA
2 records
Korsyka
ActiveHelianthus annuus L. · Sunflower
Koval`ov Volodymyr Hryhorovych, Zaitsev Oleksii Borysovych,
UA
2 records
L14B
TerminatedHelianthus annuus L. · Sunflower
Kyrpychova Nataliia Mykhailivna, Vedmedieva Kateryna Vladyslavivna,
UA
2 records
Hrand
TerminatedHelianthus annuus L. · Sunflower
Makov`eva Nadiia Petrivnav, Kusch Viacheslav Stepanovych, Herasymenko Oksana Oleksandrivna, Pershyna Liliia Vasylivna, Dymytrov Heorhii Demianovych, Skakun Vadym Mykhailovych,
UA
2 records
Frahment
TerminatedHelianthus annuus L. · Sunflower
Burlov Viktor Viktorovych, Burlov Viktor Vasylovych,
UA
2 records
Finister KLP
TerminatedHelianthus annuus L. · Sunflower
Pryvatne Pidpryiemstvo "NASINNEVE"
UA
2 records
ESH6009
WithdrawnHelianthus annuus L. · Sunflower
Euralis Semences
IT
1 record
ES HENEZIS
ActiveHelianthus annuus L. · Sunflower
Didier Sauvaire
UA
2 records
ES Alfil
WithdrawnHelianthus annuus L. · Sunflower
Euralis Semences
IT
1 record
ES Shana
WithdrawnHelianthus annuus L. · Sunflower
Euralis Semences FR
BG
1 record
Emerson
ActiveHelianthus annuus L. · Sunflower
Tovarystvo z obmezhenoiu vidpovidalnistiu «TK ART-AHRO»
UA
2 records