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Diseases

Dry rot

Fusarium

Dry rot (Fusarium rot) is a dangerous disease caused by soil-borne fungi, characterized by tissue shriveling and the formation of cavities filled with mycelium in tubers and fruits, as well as plant wilting.

Mentioned in descriptions 439 varieties reference book.

Dry rot manifests on tubers and fruits as depressed grayish-brown spots, accompanied by skin shriveling and the decay of internal tissues, which become dry, punky, and filled with fluffy mycelium. On growing plants, the disease is detected by localized wilting, leaf yellowing, and darkening of the vascular ring on stem cross-sections, sometimes with the appearance of sporulation in the root zone.

Disease development depends on environmental conditions, favoring temperatures of +17…+25°C and air humidity above 70–80%. Risk factors include mechanical tissue damage during harvesting, the presence of secondary infections, and sharp temperature fluctuations that trigger condensation in storage facilities.

Varietal resistance is genetically determined, but its expression strongly depends on environmental conditions. In variety trials, resistance is assessed through visual evaluation of affected plants in the field or storage, laboratory tests for reactions to fungal metabolites, and under controlled conditions with artificial inoculation.

Sources10

Breakdown by crop

Potato dry rot 68 Rhizopus Head Rot of Sunflower 55 Blackleg of rapeseed 16 Dry Rot of Melon 5

Found in these crops

Potato 71 Sunflower 56 Rapeseed 7 Melon 4 Rutabaga 2 Rapeseed 1 Gladiolus 1

Varieties that feature this in their description

Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.

Sevastia

Active

Solanum tuberosum L. · Potato

HERMEZIU RADU

RO
3 records

Kh 720 V

Active

Helianthus annuus L. · Sunflower

Brahin Oleksandr Mykolaiovych, Popova Ol`ha Andriivna, Kryvosheieva Olena Vatslavivna, Veselyi Vitalii Oleksandrovych, Kuzmyshena Nadiia Viktorivna, Syvenko Valentyna Ivanivna, Makliak Kateryna Mykolaivna, Alad`ina Zoia Kyrylivna, Kyrychenko Viktor Vasyl`

UA
5 records

Fregate

Terminated

Solanum tuberosum L. · Potato

Federation des Syndicats Bretons (FR)

FR
4 records

Balatoni sárga

Active

Solanum tuberosum L. · Potato

Zsolt Géza Polgár^^^Zsolt Vaszily^^^István Wolf

HU
4 records

Baltic Red

Active

Solanum tuberosum L. · Potato

Theodor Baron von Hahn

DE
3 records

Asinaria

Active

Solanum tuberosum L. · Potato

HERMEZIU RADU

RO
3 records

Rutt

Active

Solanum tuberosum L. · Potato

Landbruks- og matdepartementet, N - 0030 Oslo

2 records

Pink Gypsy

Terminated

Solanum tuberosum L. · Potato

CYGNET POTATO BREEDERS

3 records

Inca Rosa

Active

Solanum tuberosum L. · Potato

JAMES HUTTON LTD

3 records

Bounty

Active

Solanum tuberosum L. · Potato

CYGNET POTATO BREEDERS

3 records

Charlemont

Terminated

Solanum tuberosum L. · Potato

Agri-food and Biosciences Institute (AFBI Belfast)

2 records

Bambino

Active

Solanum tuberosum L. · Potato

CYGNET POTATO BREEDERS

3 records

Andeana

Active

Solanum tuberosum L. · Potato

JAMES HUTTON LTD

3 records

LG50633

Active

Helianthus annuus L. · Sunflower

LIMAGRAIN EUROPE S.A.

IT
2 records

DS11-15SU

Active

Helianthus annuus L. · Sunflower

TEODORESCU ANDREEA

UA
3 records

LG5597 CLP

Active

Helianthus annuus L. · Sunflower

SK
3 records

Sebago

Application submitted

Solanum tuberosum L. · Potato

NL
4 records

Epicure

Active

Solanum tuberosum L. · Potato

IE
3 records

Brda

Terminated

Solanum tuberosum L. · Potato

HR PL
2 records