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Diseases

Alternaria Leaf Blight of Carrot

Daucus carota L.

A complex of carrot diseases caused by the fungi Alternaria dauci (leaf blight) and Alternaria radicina (black rot), characterized by polygenic resistance and the need for pathogen differentiation in breeding.

In the reference 185 varieties crop Carrot, where this is mentioned in the description.

The causal agent of leaf blight, Alternaria dauci, infects carrot foliage, manifesting as dark brown or black necrotic spots with a chlorotic halo, which, under high humidity, leads to mass leaf dieback. Alternaria radicina is the causal agent of black rot, which affects seedlings in the manner of damping-off and forms deep, dark, sunken lesions on root crops during storage.

Carrot resistance to this pathocomplex is polygenic in nature, with the term tolerance being more frequently used in breeding to account for the influence of interallelic interactions and environmental factors. In professional documentation, codes Ad for Alternaria dauci and Ar for Alternaria radicina are used to denote resistance to the pathogens, although there is no clear classification into pathogen races.

General information about the subject — on the page Alternaria blight.

Sources8

Varieties of Carrot 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.

Jarana

Active

Daucus carota L. · Carrot

CZ
2 records

Gniff

Active

Daucus carota L. · Carrot

DE
2 records

Emperor

Active

Daucus carota L. · Carrot

UA
2 records

Cabana

Terminated

Daucus carota L. · Carrot

NL
2 records

Bertan

Terminated

Daucus carota L. · Carrot

NL
2 records

Bengala

Active

Daucus carota L. · Carrot

NL
2 records

Vytėnų Nanto

Terminated

Daucus carota L. · Carrot

Lietuvos agrarinių ir miškų mokslų centro filialas Sodininkystės ir daržininkystės institutas

LT
1 record

Volcano F1

Application submitted

Daucus carota L. · Carrot

Daniel Gabillard

UA
2 records

Vaiguva

Terminated

Daucus carota L. · Carrot

Lietuvos agrarinių ir miškų mokslų centro filialas Sodininkystės ir daržininkystės institutas

LT
1 record

Trafford F1

Application submitted

Daucus carota L. · Carrot

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

UA
2 records

Trophy ZIF

Active

Daucus carota L. · Carrot

PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.

PL
1 record

Suenio

Withdrawn

Daucus carota L. · Carrot

Vilmorin SA (FR)

FR
1 record

STYLTO

Application submitted

Daucus carota L. · Carrot

Vilmorin-Mikado

ES
1 record

Skalsa

Terminated

Daucus carota L. · Carrot

Lietuvos agrarinių ir miškų mokslų centro filialas Sodininkystės ir daržininkystės institutas

LT
1 record

Santa Cruz F1

Terminated

Daucus carota L. · Carrot

Robert Maxwell

UA
1 record

Saturno F1

Terminated

Daucus carota L. · Carrot

Robert Prieur

UA
1 record

Olimpo F1

Withdrawn

Daucus carota L. · Carrot

Daniel Gabillard

UA
2 records

Napa F1

Terminated

Daucus carota L. · Carrot

Ger Bimsdeboer

UA
1 record

Niukholl F1

Terminated

Daucus carota L. · Carrot

Ger Beemsterboer

UA
1 record

Nerac F1

Active

Daucus carota L. · Carrot

Ger Bimsdeboer

UA
1 record

Niahara F1

Terminated

Daucus carota L. · Carrot

Ger Beemsterboer

UA
1 record

New Kuroda AS

Active

Daucus carota L. · Carrot

Kyoung Chol Kim

UA
2 records

Nantindo F1

Terminated

Daucus carota L. · Carrot

Buret Fhilippe

UA
1 record