A paprika száraz magházkorhadása (Alternaria alternata (Fr.) Keissl.) és a kalciumhiány okozta nekrózis kapcsolata

Abstract

Our examination was to study the relationship between calcium deficiency and the alteration of Alternaria alternata (Fr.) Keissl. in the pepper host plant. The necrotic patch caused by calcium deficiency is a "gate" in which different pathogens can enter the plant, such as Alternaria alternata, a cause of core rotting. In the case of opened style breeds, it causes core rotting. External infection symptoms may also appear on various injuries (sunburn, uneven water supply problems, calcium deficiency caused blossom end rot, etc.) (Glits and Folk, 2000). All pepper cultivars used in our experiments were derived from Szentes. We worked with five species of pepper: Szentesi Cherry Pepper, Szentesi Totál, Captain F1, Kadet F1 and Toldi F1. With the exception of Szentesi Cherry Pepper, these varieties are commonly characterized by the loss of calcium deficiency. The calcium content of peppers was measured by analytical methods. Except for Szentesi Cherry Pepper, the pepper varieties used in our study are commonly caused by the calcium deficiency on which Alternaria alternata can easily infect. We created the Alternaria alternata pure culture from the collected samples, then placed the mycelium on the crosses of the pepper varieties used in the experiment and on the surface of whole berries. All in the whole berries were unable to penetrate the fungus until it was able to settle on the intersections.