THE RESPONSE OF SOME PLUM CULTIVARS TO STIGMINA CARPOPHILA LÉV. INFECTIONS UNDER THE CLIMATE CONDITIONS OF BISTRIŢA AREA

Authors

  • Claudiu Moldovan Fruit Research and Development Station Bistrita, 3 Drumul Dumitrei Nou Street, Bistrita, Romania Author
  • Smaranda Doina Roșu-Mareș Fruit Research and Development Station Bistrita, 3 Drumul Dumitrei Nou Street, Bistrita, Romania Author
  • Luminița Antonela Zagrai Fruit Research and Development Station Bistrita, 3 Drumul Dumitrei Nou Street, Bistrita, Romania Author
  • Ioan Zagrai Fruit Research and Development Station Bistrita, 3 Drumul Dumitrei Nou Street, Bistrita, Romania Author
  • Georgeta Maria Guzu Fruit Research and Development Station Bistrita, 3 Drumul Dumitrei Nou Street, Bistrita, Romania Author

DOI:

https://doi.org/10.1199/vq2wb667

Keywords:

plum, shot hole infection, cultivars, fungal disease, leaf

Abstract

The plum (Prunus domestica L.) holds the position of dominant fruit tree species in Romania, as reported by the FAOSTAT (2024) database. On a global scale, Romania ranks the second place on total production of plums in 2022, following China. This species is vulnerable to several economically diseases, including shot hole, caused by Stigmina carpophila Lév. The occurrence and frequency of disease damage are significantly influenced by climatic conditions. Therefore, in the context of favourable climatic condition for its development along the vegetative period of in the year 2023 at the FRDS Bistrița, the effects of Stigmina carpophila infections were monitored on 26 plum cultivars. Throughout the growing stage, 12 conventional phytosanitary treatments were applied up to harvest time. The visual observations were conducted in the field after harvesting the fruits from each cultivar. The response to shot hole infection on the limb of the leaf varies across studied cultivars. The results indicate that there were no infections with Stigmina carpophila in cultivars such as ‘d’Agen’, ‘Matilda’, ‘Elena’, ‘Zamfira’, ‘Iulia’, ‘Flora’, ‘Andreea’, ‘Doina’, and ‘Carpatin’. However, there were some cultivars that exhibited symptoms and a high percentage of infected leaves, such as 'Jojo', 'Empress' and 'Centenar'. All the results obtained are statistically supported. These findings are encouraging, as they allow selection of tolerant cultivars to shot hole disease, especially considering the increasing impact of climate change. Furthermore, the global trend toward organic farming necessitates the use of resistant cultivars to effectively manage problematic pathogens in agriculture.

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Published

2024-08-01

Issue

Vol. 6 No. 2 (2024): Horticulture

Section

Fruit Growing