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.
Cicer arietinum L. · Chickpea
Diego Rubiales Olmedo^^^Ana Moral Jiménez
Pisum sativum L. · Pea
New Zealand Institute for Crop and Food Research Ltd
Vicia faba L. · Broad bean
Boreal Plant Breeding Ltd., Katja Hämälainen, Pertti Pärssinen
Cicer arietinum L. · Chickpea
Retig Baruch
Pisum sativum L. · Pea
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Pisum sativum L. · Pea
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Pisum sativum L. · Pea
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Vicia faba L. · Broad bean
Saatzucht Gleisdorf
Cicer arietinum L. · Chickpea
THE STATE OF ISRAEL-MINISTRY OF AGRICULTURE AND RURAL DEVELOPMENT-AGRICULTURAL RESEARCH ORGANIZATION( ARO)
Lens culinaris Medik. · Lentil
Pisum sativum L. · Pea
Pisum sativum L. · Pea
Vicia faba L. · Broad bean
Nordic Seed A/S
Vicia faba L. · Broad bean
Saatzucht Gleisdorf
Cucumis sativus L. · Cucumber
Matthijs Groot
Pisum sativum L. · Pea
Royal Sluis Vegetables BV (NL)
Pisum sativum L. · Pea
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Cicer arietinum L. · Chickpea
INIAV - Instituto Nacional de Investigacao Agraria e Veterinaria.
Cicer arietinum L. · Chickpea
Instituto Nacional de Investigacao Agraria (PT)
Pisum sativum L. · Pea
DLF SEEDS A/S
Cicer arietinum L. · Chickpea
VARIOS OBTENTORES
Pisum sativum L. · Pea
MOSKOVSKOE OTDELENIE VNIIR (MOVIR)
Cucumis sativus L. · Cucumber
Seminis Vegetable Seeds
Cicer arietinum L. · Chickpea
ITACYL (CASTILLA Y LEON)