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Diseases

Powdery mildew of rye

Secale cereale L.

A fungal disease of rye caused by the highly specialized biotrophic pathogen Blumeria graminis f. sp. secalis. The disease affects the above-ground organs of the plant, reducing yields by 10–15% due to impaired photosynthesis and premature leaf senescence.

In the reference 76 varieties crop Rye, where this is mentioned in the description.

The pathogen Blumeria graminis (DC.) Speer f. sp. secalis is an obligate parasite adapted exclusively to species of the genus Secale. The infection manifests as a white, web-like mycelium on leaves and leaf sheaths, which eventually densifies and takes on a grayish hue. As the pathogen develops, cleistothecia—small black dots that ensure the survival of the inoculum—form on the affected areas.

The pathogen population exhibits high virulence diversity and constant emergence of physiological races. Breeding for resistance relies on studying Pm genes; however, their effectiveness is limited due to the rapid variability of the fungus. Consequently, rye breeding programs primarily focus on developing cultivars with quantitative adult-plant resistance and the ability to slow down infection development.

General information about the subject — on the page Powdery mildew.

Sources8

Varieties of Rye 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.

Tur

Active

Secale cereale L. · Rye

Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy

FI PL
8 records

Secale cereale L. · Rye

PHP PETERSEN

FI PL UA
7 records

Secale cereale L. · Rye

P.H PETERSEN

DE
6 records

Elvi

Active

Secale cereale L. · Rye

Leida Kask 60%,Kaljo Kask 15%,Virve Küüts 10%,Ilme Tupits 10%,Vahur Kukk 5%

EE FI
7 records

Varda

Active

Secale cereale L. · Rye

VETOMAG VALLALAT NYIREGYHAZI KUTATO KOZPONTJA (HU)

FR HU
4 records

Secale cereale L. · Rye

Danko Hodowla Roslin Sp.z.o.o.

AT PL
5 records

Secale cereale L. · Rye

Danko Hodowla Roslin Sp.z.o.o.

PL
6 records

Secale cereale L. · Rye

Danko Hodowla Roslin Sp.z.o.o.

PL
6 records

Borfuro

Active

Secale cereale L. · Rye

SAATZUCHT STEINACH GMBH and CO KG

DE
5 records

Bojko

Active

Secale cereale L. · Rye

HODOWLA ROSLIN SMOLICE SP.ZOO

PL
6 records

Carotop

Terminated

Secale cereale L. · Rye

Erhardt Eger per adresse Pflanzenzucht Dr. h.c. Carsten, Inh. Erhardt Eger KG

DE PL
6 records

Poseidon

Active

Secale cereale L. · Rye

DK EE LT PL
7 records

Secale cereale L. · Rye

Poznanska Hodowla Roslin Sp. z o.o

PL
5 records

Secale cereale L. · Rye

Nordic Seed Germany

DK
4 records

Secale cereale L. · Rye

Poznanska Hodowla Roslin Sp. z o.o

PL
4 records

Secale cereale L. · Rye

Hodowla Roslin Smolice Sp.z o.o Grupa IHAR

PL
4 records

Secale cereale L. · Rye

KWS Lochow

DK EE
4 records

Secale cereale L. · Rye

Hodowla Roslin Smolice Sp.z o.o Grupa IHAR

PL
4 records

SU Phönix

Terminated

Secale cereale L. · Rye

Franz-Joachim Fromme

DE
4 records

Secale cereale L. · Rye

Danko Hodowla Roslin Sp.z.o.o.

PL
5 records