Diseases

Ascochyta blight

Ascochyta

Ascochyta blight is a group of fungal plant diseases characterized by the appearance of spots with punctate sporulation on leaves, stems, and pods. The disease significantly reduces seed germination and crop productivity, causing yield losses of up to 50% or more.

Mentioned in descriptions 821 varieties reference book.

Ascochyta blight manifests as spots of varying color — from light brown with a dark rim to dark brown with a depressed center. A characteristic diagnostic sign of the infection is the presence of small black dots in the center of the spots, called pycnidia. The infection affects the above-ground organs of plants, leading to thinning of seedlings, stem breakage, and underdevelopment of fruits.

The development of the pathogen depends on the presence of infection in the soil, on plant residues or seeds, as well as on environmental conditions. Optimal conditions for the fungus are high air humidity above 90% and a temperature range from +16 to +25°C. Factors contributing to the spread of the disease include prolonged rains, dense sowing, and excessive nitrogen nutrition, while temperatures above +30°C slow down or stop the development of the disease.

The assessment of variety resistance in variety trials is carried out on an artificial or provocative infection background created by irrigation and regulation of plant density. During the breeding process, the degree of organ damage, yield stability under different infection loads, and plant homeostaticity are analyzed, i.e., their genetic ability to maintain productivity when exposed to the pathogen and environmental stress factors.

Sources10

Breakdown by crop

Ascochyta blight of pea 114 Ascochyta blight of chickpea 46 Ascochyta blight of soybean 25 Ascochyta blight of fava bean 19 Ascochyta blight of fava bean 14 Ascochyta blight of faba bean 11 Ascochyta blight of cucumber 9 Ascochyta blight of bean 7 Ascochyta blight of melon 4 Ascochyta blight of lentil 4 Ascochyta blight of common vetch 3 Ascochyta blight of hairy vetch 3

Found in these crops

Pea 120 Chickpea 48 Soybean 25 Tick Bean 23 Broad bean 16 Horse bean 13 Cucumber 8 Common bean 8 Lentil 4 Common vetch 3 Hairy vetch 3 Sunflower 2

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.

Arabal

Terminated

Pisum sativum L. · Pea

Clause Semences SA (FR)

1 record

Aloiz

Terminated

Pisum sativum L. · Pea

Bortnovskyi Vitalii Mykolaiovych, Kondratenko Mykola Ivanovych, Buhaiov Vasyl Dmytrovych,

2 records

ALCAZABA

Terminated

Cicer arietinum L. · Chickpea

INIA-OTRI

1 record

Amulet

Terminated

Vicia faba L. · Broad bean

Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR

1 record

Zhaklin

Active

Glycine max (L.) Merr. · Soybean

BOLBOTENKO NADIIA OLEKSANDRIVNA, ROMANIUK LIDIIA SERHIIVNA, SHCHERBYNA OLENA ZINOVIIVNA, TYMOSHENKO OLEKSANDR OLEKSIIOVYCH, POLISHCHUK SVITLANA VIKTORIVNA, SHOSTAK NATALIIA OLEKSANDRIVNA, MYKHAILOV VIACHESLAV HRYHOROVYCH

2 records

Trendi

Terminated

Pisum sativum L. · Pea

ROMAN TYLLER

1 record

Sotnyk

Active

Pisum sativum L. · Pea

Shtelma Andrii Mykhailovych, Shevchenko Larysa Mykolaivna, Hliantsev Andrii Vasylovych, Vasylenko Antonina Oleksandrivna, Bezuhlyi Ihor Mykolaiovych,

2 records

Pam'iat`

Active

Cicer arietinum L. · Chickpea

Sichkar V'iacheslav Ivanovych, Bushulian Oleh Volodymyrovych, Vedysheva Rozetta Havrylivna,

1 record

NS KATIA

Terminated

Glycine max (L.) Merr. · Soybean

Dukic Vojin, Miladinovic Jegor, Vidic Milos,

2 records

Odysei

Active

Cicer arietinum L. · Chickpea

Sichkar V'iacheslav Ivanovych, Bushulian Oleh Volodymyrovych,

2 records

Limit

Active

Helianthus annuus L. · Sunflower

Titov Serhii Ivanovych, Burlov Viktor Viktorovych, Burlov Viktor Vasylovych,

2 records

Lehion

Terminated

Pisum sativum L. · Pea

Brezhniev Oleksandr Volodymyrovych, Zhohina valentyna Andriivna, Brezhnieva Valentyna Ivanivna, Chumakovs`kyi Mykhailo Mykolaiovych,

1 record

Kharkivs`kyi etalonnyi

Terminated

Pisum sativum L. · Pea

Serdiuk Vira Ivanivna, Bezuhlyi Ihor Mykolaiovych, Bekarevych Alla Davydivna, Lutsenko Mykola Petrovych, Chekryhin Petro Mykheiovych,

1 record

GARPEDRO

Active

Cicer arietinum L. · Chickpea

SEMILLAS BATLLE, S.A.

1 record

GARSUCO

Active

Cicer arietinum L. · Chickpea

SEMILLAS BATLLE, S.A.

1 record

GARBINE

Active

Cicer arietinum L. · Chickpea

SEMILLAS BATLLE, S.A.

1 record

GARSAUCO

Active

Cicer arietinum L. · Chickpea

SEMILLAS BATLLE, S.A.

1 record

Farvater

Terminated

Glycine max (L.) Merr. · Soybean

Hanzhelo Olha Ivanivna, Lavrova Halyna Dmytrivna, Sichkar V'iacheslav Ivanovych,

2 records

Dev'iatka

Terminated

Fagopyrum esculentum Moench · Buckwheat

Herasymenko Vasyl` Hryhorovych, Shakhov Mykola Pylypovych, Hurynovych Iryna Oleksandrivna, Fesenko Oleksii Mykolaiovych, Martynenko Halyna IEfymivna, Fesenko Mykola Valeriiovych,

2 records

CAVIR

Terminated

Cicer arietinum L. · Chickpea

INIA/U.CORDOBA/IFAPA

2 records

Albus

Active

Vicia faba L. var. equina St.-Amans · Horse bean

Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR

2 records

Telefoon

Protection expired

Pisum sativum L. · Pea

HR SI

2 records

Morava

Protection expired

Vicia villosa Roth · Hairy vetch

1 record

Tivaz

Active

Glycine max (L.) Merr. · Soybean

2 records

1 2 3 4 5 6 7 8 9 10 11 12 Next

Diseases

Powdery mildew 33 570
Fusarium wilt and blight 29 887
Viral mosaic diseases 22 022
Downy mildew 16 384
Leaf spot diseases 15 926
Rust 14 859
Verticillium wilt 12 175
Scab 12 064

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.