DOI: https://doi.org/10.5513/JCEA01/24.2.3833
Original scientific paper
Evaluation of pepper breeding lines (Capsicum annuum L.) to important diseases in organic agricultural system
2023, 24 (2) p. 498-504
Katya Vasileva, Velichka Todorova
Abstract
The reaction of pepper breeding lines under organic production conditions to Verticillium wilt, viruses and phytoplasma was observed at Maritsa Vegetable Crop Research Institute, Plovdiv, Bulgaria during two successive years. The diseases severity was recorded, when symptoms of Verticillium dahliae, viruses and Phytoplasma diseases were deeply expressed. The Verticillium dahliae attack index for early production breeding lines varied widely from 15.04% for line O58/14 to 43.83% for O26/16. For kapia type materials, the attack rate of Verticillium wilt ranged from 39.27% (O17/15) to 46.68% (O79/16). The highest index of attack by the disease was established for the powder breeding line (OP69/16) – 49.85%. The viruses which were monitored belong to groups of tobamoviruses, cucumoviruses and tospoviruses and were only 5.00% in breeding lines for early production. The Phytoplasma development was from 10.51% (O12/15) to 32.92% (O38/14). It was established that among studied diseases Verticillium wilt (42.41%) was more dangerous for studied pepper breeding lines in organic conditions followed by Phytoplasma disease (20.67%) and viruses (0.59%).
Keywords
Capsicum, infestation, Verticillium wilt, viruses, phytoplasma
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