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Diseases

Watermelon Anthracnose

Citrullus lanatus (Thunb.) Matsum. & Nakai

A fungal disease of watermelon caused by Colletotrichum orbiculare, affecting all aerial plant organs and characterized by the appearance of sunken lesions with a distinct pink or orange sporulation.

In the reference 257 varieties crop Watermelon, where this is mentioned in the description.

The causative agent of the disease is the fungus Colletotrichum orbiculare, also known as Colletotrichum lagenarium. The pathogen is represented by several physiological races, among which Race 2 poses a particular threat to commercial cultivars, as it is capable of overcoming the resistance effective against Race 1.

Symptoms of infection appear on all aerial parts of the plant. Yellow-brown spots, which become covered with sporulation under high humidity conditions, form on leaves and cotyledons; sunken dark lesions appear on stems and petioles, leading to vine breakage. Fruit infection is accompanied by the development of sunken lesions, deformation, and a decline in flavor quality.

Genetic resistance of watermelon to this pathogen is associated with the presence of specific loci, in particular the dominant Ar-1 gene, which provides resistance to Race 1. Breeding for resistance is complicated by the variability of the fungus and the need to develop cultivars with complex protection.

General information about the subject — on the page Anthracnose.

Sources8

Varieties of Watermelon 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.

Nevada

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

CZ
2 records

Congo

Application submitted

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

IT
2 records

Camas

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

HU
2 records

Sweet Marvel

Terminated

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

NL
2 records

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

RO
2 records

CARSON

Terminated

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

PIONEER HI-BRED INTERNATIONAL

ES
1 record

Charlston grey

Terminated

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Angeles Maria

UA
1 record

CELESTE

Withdrawn

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

LIAONING D.AGR.DEVELOPMENT CO. LTD.

ES
1 record

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Hari Besels

UA
1 record

Tropired

Application submitted

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Bayer Holland B.V. (NL)

FR
1 record

PABLOS

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

HM.CLAUSE

UA
2 records

Boryana

Terminated

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Petar L. Bozhinov

BG
1 record

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Fred McCuistion

UA
1 record

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Dr. Mario Martinelli

UA
2 records

Medun

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Shevchenko Andrii Oleksiiovych

UA
2 records

Sorento F1

Terminated

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Tsinhpinh Dzhanh

UA
1 record

Banir

Application submitted

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Shevchenko Igor

UA
2 records

Sweet Pontoon

Application submitted

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Bayer Holland B.V. (NL)

FR
1 record

Bonta F1

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

B. Juarez

UA
2 records

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Dr. Mario Martinelli

UA
2 records

Celebration F1

Terminated

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

XINGPING ZHANG

UA
1 record

Shoreline

Application submitted

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

Bayer Holland B.V. (NL)

FR
1 record

CHULAPA

Application submitted

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

INTERSEMILLAS, S.A.

ES
1 record

Batukan F1

Terminated

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

XINGPING ZHANG

UA
1 record