Diseases
Alternaria cucumerina, Leptosphaeria maculans, Nectria cinnabarina, Rhacodiella vitis, Pseudomonas syringae, Pseudomonas corrugata, Beet necrotic yellow vein virus, Prunus necrotic ringspot
Necrosis is a pathological process of plant tissue death caused by infectious agents (fungi, bacteria, viruses) or non-infectious environmental factors. It is characterized by localized damage that can lead to the loss of a significant portion of the crop or the plant itself.
Mentioned in descriptions 2 111 varieties reference book.
Necrosis manifests as tissue death, visually expressed as spotting, lesions on fruits and shoots, and the death of bark, cambium, and the vascular system. Cracks may form on affected areas, gummosis can be observed in stone fruit crops, or specific fungal sporulation may appear in the form of tubercles and pustules.
The development of the process depends both on the presence of an infectious source and on environmental conditions, including humidity and sharp temperature fluctuations that cause frost cracks or sunburn. Mechanical damage often serves as an entry point for infection, which persists in plant debris, soil, or planting material.
Varietal resistance is based on anatomical features, such as bark strength, which can limit pathogen penetration, or the plant's ability to rapidly form a protective callus layer around the damaged zone. Resistance evaluation in variety trials is conducted using scales of disease intensity under conditions of artificial or natural infection.
The concept of necrosis resistance in crop production always requires specification of the particular pathogen, as immunity to the pathological process as a whole does not exist. When selecting a variety, one should prioritize documented resistance to pathogen species relevant to the region, as indicated in the originator's data or the state register.
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.
Lactuca sativa L. var. crispa L. · Leaf lettuce
Mytenko Inna Mykolaivna, Kuraksa Nina Petrivna, Nesyn Volodymyr Mykolaiovych, Pozniak Oleksandr Vasyl`ovych, Tkalych IUrii Vadymovych, Korniienko Serhii Ivanovych, Horova Tamara Korniivna, Kondratenko Serhii Ivanovych,
Chrysanthemum indicum L. · Indian chrysanthemum
FIDES BEHEER BV (NL)
Lactuca sativa L. var. crispa L. · Leaf lettuce
Henk Driessen
Nicotiana tabacum L. · Tobacco
Centralne Laboratorium Przemyslu Tytoniowego
Lactuca sativa L. var. crispa L. · Leaf lettuce
RIJK ZWAAN Zaadteelt en Zaadhandel B.V.
Brassica oleracea L. (White Cabbage Group) · White cabbage
SJAAK VAN DER PLOEG
Brassica oleracea L. (White Cabbage Group) · White cabbage
Dubenchuk Vasyl` Mykolaiovych, Popov Valentyn Ivanovych, Kravtsov Mykola Artemovych, S`omin Al`bert Semenovych, Patsuriia Dzheneri Volodymyrovych, Monakhos Hryhorii Fedorovych, Kriuchkov Anatolii Vasyl`ovych,
Lactuca sativa L. var. crispa L. · Leaf lettuce
Kees Reinink
Begonia x hiemalis Fotsch · Elatior Begonia
Hans Joachim Rohde (DE)
Lactuca sativa L. · Lettuce
Barb Neubert
Lactuca sativa L. · Lettuce
Institut National de la Recherche Agronomique (FR)/Vilmorin SA (FR)
Lactuca sativa L. · Lettuce
Syngenta Crop Protection AG
Lactuca sativa L. var. capitata L. · Head lettuce
Rijk Zwaan B.V.
Solanum lycopersicum L. · Tomato
Kees Konst
Brassica oleracea L. (White Cabbage Group) · White cabbage
Siiak van der Ploh
Cupressus L. · Cypress
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Lactuca sativa L. var. crispa L. · Leaf lettuce
OLAF ZONNEVELD
Cichorium endivia L. · Endive
MINISTERO DELLE POLITICHE AGRICOLE E FORESTALI - DIREZIONE GENERALE DELLE POLITICHE AGRICOLE ED AGROINDUSTRIALI NAZIONALI
Lactuca sativa L. · Lettuce
Royal Sluis Vegetables BV (NL)
Tulipa L. · Tulip
Van Woesik Veredeling B.V.
Vitis vinifera L. · Common grape vine
LAND RHEINLAND OPPENHEIM| Land Rheinland-Pfalz, vertreten durch das DLR Rheinhessen-Nahe-Hunsrueck Dienstsitz Oppenheim
Lactuca sativa L. · Lettuce
Rijk Zwaan France SARL (FR)
Vaccinium corymbosum L. · Highbush blueberry
Szkola Glowna Gospodarstwa Wiejskiego
Solanum lycopersicum L. var. lycopersicum · Tomato
Lietuvos agrarinių ir miškų mokslų centro filialas Sodininkystės ir daržininkystės institutas