The Development of a Micropropagation System for a Rare Variety of an Agricultural and Medicinal Elderberry Plant Sambucus nigra ‘Albida’
Jiří Sedlák | Martin Mészáros | Matěj Semerák | Pavel Pech
Black elder (Sambucus nigra L.) is a temperate shrub with flowers and fruits that are edible after processing. This species is not yet widely known in the global agricultural sector, but its adaptability and drought tolerance may generate more interest in this crop. Our study aimed to find suitable micropropagation techniques for the black elder &lsquo:Albida&rsquo: and compare suitable statistical methods for evaluating multiplication and rooting. For micropropagation, we tested the Murashige and Skoog (MS) growth medium with selected auxins and cytokinins. Five proliferation MS media containing 1, 2, and 4 mg/L BAP or 0.5 and 1 mg/L TDZ were tested. To induce root formation, three types of auxins were tested at a concentration of 1 mg/L in a 50% MS medium: IBA, IAA, and NAA. Data analysis was performed using different parametric and nonparametric tests to robustly capture the effects of treatments across varying distributional scenarios in developing explants subjected to the interactions of internal native and externally added plant growth regulators. The average multiplication rate ranged from 1.6 to 2.0 shoots per explant. High multiplication was recorded on the MS medium with 1 mg/L 6-benzylaminopurine. The root number per rooted explant was highly variable, ranging from 3.0 to 12.0 roots per explant. The highest average root number result was observed when 1 mg/L &alpha:-naphthalenacetic acid was used. All rooted plants were successfully acclimated to normal growing conditions. This in vitro propagation protocol allows for the production of hundreds to thousands of rooted plants from one initial explant within one year, enabling faster introduction to the agronomic sector.
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