Diseases
Pisum sativum L.
A fungal disease of pea caused by specialized forms of the order Erysiphales, particularly Erysiphe pisi. It manifests as a white, web-like coating on vegetative organs, causing deformation, flower/pod drop, and reduced productivity.
In the reference 268 varieties crop Pea, where this is mentioned in the description.
The primary pathogen of powdery mildew on pea is the fungus Erysiphe pisi DC. The disease affects leaves, stems, flowers, and pods, manifesting during the period from the beginning of flowering to the end of the growing season. Initial symptoms appear as circular spots of delicate white mycelium, which gradually expand to cover the entire plant surface, becoming denser and acquiring a grayish hue due to the formation of cleistothecia.
Severe infection leads to leaf curling and necrosis, as well as the shedding of flowers and pods. Early infection causes deep lesions on young pods, which prevents seed formation or leaves them underdeveloped. Infestation of the stem base triggers browning and leads to total plant death.
In pea breeding practice for resistance to this pathogen, the concept of monogenic trait inheritance predominates. Researchers actively utilize genetic factors introgressed from wild relatives, such as Pisum fulvum, to develop varieties capable of resisting infection development.
General information about the subject — on the page Powdery mildew.
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.
Pisum sativum L. · Pea
WAVEREN| van Waveren Saaten GmbH
Pisum sativum L. · Pea
Syngenta Participations AG
Pisum sativum L. · Pea
Institute of field and vegetable crops - Novi Sad (SR)
Pisum sativum L. · Pea
SEMO a.s
Pisum sativum L. · Pea
NOVARTIS SEEDS
Pisum sativum L. · Pea
VELDHUYZEN V.ZANTE
Pisum sativum L. · Pea
The United States Government as represented by the Secretary of Agriculture
Pisum sativum L. · Pea
Van Waveren Saaten GmbH
Pisum sativum L. · Pea
Syngenta Seeds B.V. (NL)
Pisum sativum L. · Pea
Morten Helt-Poulsen c/o Maribo Seed
Pisum sativum L. · Pea
Nickerson International Research SNC (FR)
Pisum sativum L. · Pea
Limagrain Europe S.A.
Pisum sativum L. · Pea
W BROTHERTON SEED CO INC
Pisum sativum L. · Pea
Nunza B.V.
Pisum sativum L. · Pea
Syngenta Seeds B.V.
Pisum sativum L. · Pea
RAGT 2N S.A.S
Pisum sativum L. · Pea
Selgen
Pisum sativum L. · Pea
Paul Degreef
Pisum sativum L. · Pea
W BROTHERTON SEED CO INC
Pisum sativum L. · Pea
SVS HOLLAND BV
Pisum sativum L. · Pea
Pure Line Seeds, USA
Pisum sativum L. · Pea
SYNGENTA SEEDS B.V. / SYNGENTA SEEDS B.V. / INRA MAROC / INRA MAROC / Vilmorin
Pisum sativum L. · Pea
Syngenta Seeds, NL
Pisum sativum L. · Pea
Nunhems Zaden BV (NL)