The influence of exogenous phytohormones and zinc sulfate on the morphophysiological characteristics of Salvinia natans (Salviniaceae) - I. V. Kosakivska; L. V. Voytenko; N. P. Vedenicheva; V. A. Vasyuk; M. M. Shcherbatiuk; K. O. Romanenko (Ukrainian Botanical Journal, 2024)