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  • Title: Mycorrhizal frequency, physiological parameters, and yield of strawberry plants inoculated with endomycorrhizal fungi and rhizosphere bacteria.
    Author: Mikiciuk G, Sas-Paszt L, Mikiciuk M, Derkowska E, Trzciński P, Głuszek S, Lisek A, Wera-Bryl S, Rudnicka J.
    Journal: Mycorrhiza; 2019 Oct; 29(5):489-501. PubMed ID: 31264099.
    Abstract:
    Due to the impoverishment of agricultural and horticultural soils and replant diseases, there is a need to use bioproducts and beneficial microorganisms in order to improve the quality of soils and growth substrates. For this reason, research was undertaken to assess the impact of arbuscular mycorrhizal fungi and rhizosphere bacteria on changes in soil microbiology, the degree of colonization of plant roots by mycorrhizal fungi, selected physiological parameters, and fruit quality and yield of the strawberry cultivar "Rumba." The plants were inoculated with the mycorrhizal preparation Mykoflor (Rhizophagus irregularis, Funneliformis mosseae, Claroideoglomus etunicatum), MYC 800 (Rhizophagus intraradices), and the bacterial preparation Rhizocell C (Bacillus amyloliquefaciens IT45). The applied preparations increased the total number of bacteria and fungi in the soil and mycorrhizal frequency in the roots of the strawberry plants. They increased the chlorophyll "a" and total chlorophyll concentrations in the leaves as well as the rate of transpiration and CO2 concentration in the intercellular spaces in the leaves. The plants treated with Rhizocell C and MYC 800 exhibited a higher CO2 assimilation rate than control plants. The biopreparations increased chlorophyll fluorescence parameters such as maximum fluorescence (FM) and the maximum potential photochemical reaction efficiency in PS II (FV/FM). The influence of the species of rhizosphere bacteria and mycorrhizal fungi used in the experiment on the physiological traits of strawberry plants contributed, especially in the second year of the study, to increase the yield and mean weight of strawberry fruit.
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