Bulgarian Journal of Agricultural Science
Array ( [session_started] => 1756372871 [LANGUAGE] => EN [LEPTON_SESSION] => 1 )
Help
 
Register

Login:


Forgot Details? Sign-up



Behavior of the natural arbuscular mycorrhiza of oil-bearing rose under the influence of organic fertilization
Rumyana Georgievaorcid
Abstract: The present study aims to identify the composition of the natural arbuscular mycorrhizal society of Damask rose, and to investigate if the different organic fertilization products influence its colonization rate. The present research also investigated the density of the mycorrhizal community during the plant's crucial growth stages. The experiment was carried out using the randomized complete block design, in three replications over three years (2022, 2023, and 2024). The following organic fertilizers were used in the experiment: dried poultry manure, Polynamatura NP, OrgaNexport N:P 10:8, and vermicompost, each applied at the respective dose. For the test period, the two factors - organic fertilization and climate conditions, do not lead to significant changes in the composition of the natural mycorrhizal society. The species affiliation of 9 arbuscular mycorrhizal fungi was identified. Spores of Claroideoglomus claroideum, Glomus irregulare, Funneliformis caledonius, and Funneliformis mosseae were detected at the highest frequency. The density of the mycorrhizal community varies, throughout the different stages of rose development. The highest density is observed during the flowering phase, when the plants have the greatest nutrient demands. In contrast, the leaf occurrence phase is associated with the lowest density of the arbuscular mycorrhizal community. Fertilization with bone meal stimulates the density of mycorrhiza to the greatest extent for the entire testing period. During the flowering phase, fertilization with meat and bone meal increases the colonization rate between 28.3% for the second year and 32.6% for the third year. As a result of fertilization with vermicompost, the percentage of colonization increases between 8.5% for the second year and 16.9% for the first year. A similar effect is exerted by fertilizing with dried poultry manure. The control variants report the lowest values for the indicator. In years with better precipitation, such as 2023 and 2024, a higher percentage of colonization and an increased density of spores are reported.
Keywords: Damasc rose; fertilization; mycorrhiza colonization; organic production
Citation: Georgieva, R. (2025). Behavior of the natural arbuscular mycorrhiza of oil-bearing rose under the influence of organic fertilization. Bulg. J. Agric. Sci., 31(4), 681–689.
References: (click to open/close)
Date published: 2025-08-27
Download full text