Diseases
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.
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.
Vicia benghalensis L. · Purple vetch
Seed Technology & Marketing Pty Ltd
Cicer arietinum L. · Chickpea
E.N.E.A. - DIPARTIMENTO AGROBIOTECNOLOGIE - UNITA' DI PROGETTO SEMENTI E VIVAISMO
Cucumis melo L. · Melon
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
Cicer arietinum L. · Chickpea
Universita degli Studi della Basilicata Centro Interdipartimentale per la Salvaguardia delle Risorse Genetiche Vegetali "Pierino Iannelli"
Vicia faba L. · Broad bean
HILD SAMEN GMBH
Vicia faba L. var. minuta (hort. ex Alef.) Mansf. · Tick Bean
Serasem, FR
Pisum sativum L. · Pea
HORTUS SEMENTI S.R.L.
Vicia faba L. var. major Harz · Broad bean
Hodowla Roslin Snowidza Sp.z.o.o
Pisum sativum L. · Pea
Poznanska Hodowla Roslin Sp. z o.o
Cicer arietinum L. · Chickpea
HAO-DEMETER-Fodder Crops and Pastures Institute
Cicer arietinum L. · Chickpea
E.N.E.A. - DIPARTIMENTO AGROBIOTECNOLOGIE - UNITA' DI PROGETTO SEMENTI E VIVAISMO
Cicer arietinum L. · Chickpea
INIAV - Instituto Nacional de Investigacao Agraria e Veterinaria.
Cicer arietinum L. · Chickpea
INIAV - Instituto Nacional de Investigacao Agraria e Veterinaria.
Cicer arietinum L. · Chickpea
INIAV - Instituto Nacional de Investigacao Agraria e Veterinaria.
Vicia faba L. var. minuta (hort. ex Alef.) Mansf. · Tick Bean
KWS LOCHOW GMBH Herrn Dr. Erhard Ebmeyer / Ulrike Ellis in Fa. KWS LOCHOW GMBH
Pisum sativum L. · Pea
SLUIS & GROOT BV (NL)
Pisum sativum L. · Pea
DLF-TRIFOLIUM A/S
Pisum sativum L. · Pea
VARIOS OBTENTORES
Lens culinaris Medik. · Lentil
VANDENBERG ALBERT
Cicer arietinum L. · Chickpea
CRINO' PAOLA / IAIANI MARCELLO / SACCARDO FRANCO
Pisum sativum L. · Pea
Vasylenko Antonina Oleksandrivna, Bezuhlyi Ihor Mykolaiovych, Lubko Maryna Vasylivna, Parii IAroslav Fedorovych, Rusavskyi Vladyslav Leonidovych, Iliuchenko Oleksandr Serhiiovych, Parii Myroslav Fedorovych, Parii IUliia Oleksandrivna, Parii Fedir Mykytovy
Vicia faba L. var. minuta (hort. ex Alef.) Mansf. · Tick Bean
LOCHOW| Lochow-Petkus GmbH
Cicer arietinum L. · Chickpea
S.A.I.S. Societa Agricola Italiana Sementi
Pisum sativum L. · Pea
Julius Aamisepp 75%, Valve Jaagus 25%