Effect of Hyacinth Treatment by Hydrogen Peroxide Stabilized with Silver and Some Fungicides on the Fungal Infection of Substrate and Bulbs and on Plant Growth and Development

The aim of the study was to demonstrate feasibility using hydrogen peroxide stabilized with silver (H2O2-Ag+) and selected fungicides for treatment hyacinth bulbs determine their effects on development fungi colonizing substrate impact plant growth development. Hydrogen captan, pyraclostrobin + boscalid methyl thiophanate tetraconazole were used treat before planting, in form a 20 min soak. effect evaluated during rooting refrigerated storerooms after placement greenhouse. Observations also made showed significant H2O2-Ag+ reducing period rooting. It found that H2O2-Ag+, at concentrations ranging from 2% 10%, significantly increased Chlorophyll Index Nitrogen Balance Index. In some tested, it petal width, inflorescence number flowers, leaf length, quality, fresh weight without inflorescences dry plants tested. shown that, all used, flower diameter, total height, compared control plants. None treatments tested phytotoxic hyacinth.