Diseases
Plum pox virus
Plum pox (Sharka) is an incurable quarantine viral disease of stone fruit crops, leading to crop loss and fruit degradation. The disease manifests as chlorotic spots on leaves, necrosis on fruits, and premature fruit drop.
Mentioned in descriptions 1 410 varieties reference book.
Symptoms of the disease become noticeable 3–4 weeks after flowering. Characteristic chlorotic spots, rings, or arcs appear on the leaves, which are clearly visible when backlit. Sunken spots and streaks form on the fruits, often accompanied by tissue necrosis, flesh hardening, gum exudation, and loss of flavor, rendering the produce unsuitable for sale.
Virus development depends on the activity of vectors, which are aphids, and environmental conditions: at temperatures above +20…+25°C, symptoms on the leaves are often masked, complicating visual diagnosis. The virus affects a wide range of species of the genus Prunus and is spread primarily through infected planting material, causing crop losses from 10% to 100%.
Evaluation of variety resistance during trials is based on screening under artificial infection conditions and the use of ELISA and PCR methods. In breeding, a distinction is made between resistance, as the ability to withstand infection or limit virus development, and tolerance, which allows a variety to maintain productivity when infected without showing pronounced signs of damage on the fruits.
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.
Prunus armeniaca L. · Apricot
Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE)
Prunus armeniaca L. · Apricot
Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE)
Prunus domestica L. · European plum
Universitaet Hohenheim
Prunus domestica L. · European plum
Walter Hartmann
Prunus domestica L. · European plum
Universitat Hohenheim, D
Prunus armeniaca L. · Apricot
PSB produccion vegetal S.L. (ES)
Prunus armeniaca L. · Apricot
Marie-France Bois
Prunus armeniaca L. · Apricot
PSB produccion vegetal S.L. (ES)
Prunus armeniaca L. · Apricot
Cot International S.A.R.L.
Prunus armeniaca L. · Apricot
Sica Centrex (FR)/Institut National de la Recherche Agronomique (FR)
Prunus armeniaca L. · Apricot
JEAN-LOUIS ESCANDE
Prunus armeniaca L. · Apricot
Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE) , CEP Innovation S.A.R.L.
Prunus persica (L.) Batsch · Peach
PSB produccion vegetal S.L. (ES)
Prunus persica (L.) Batsch · Peach
PSB produccion vegetal S.L. (ES)
Prunus armeniaca L. · Apricot
Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE) , CEP Innovation S.A.R.L.
Prunus persica (L.) Batsch · Peach
PSB produccion vegetal S.L. (ES)
Prunus armeniaca L. · Apricot
Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE)
Prunus domestica L. · European plum
R P JONES
Prunus armeniaca L. · Apricot
S.A.R.L. Benoit Escande Editions (FR)
Prunus armeniaca L. · Apricot
Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE)
Prunus armeniaca L. · Apricot
PSB Produccion Vegetal SL
Prunus armeniaca L. · Apricot
ROBERTS SEED COMPANY (US)
Prunus salicina Lindl. · Japanese plum
David Ruiz González/María Nicolás Almansa/Pedro Martínez Gómez/Federico Dicenta López-Higuera/Alfonso Guevara Gázquez/José Enrrique Cos Terrer/Antonio Carrillo Navarro/Federico García Montiel/Domingo López Ortiz
Prunus persica (L.) Batsch · Peach
VARIOS OBTENTORES