Articles
Effect of treatment of ornamental bulb plants on fungal colonization of bulb and substrate during the rooting period and on plant growth and development
Article number
1435_36
Pages
271 – 278
Language
English
Abstract
The studies evaluated the effect of Bisteran (50% of silver stabilized hydrogen peroxide) and the fungicides Biszop 80 WG (80% of captan), Signum 33 WG (67 g of pyraclostrobin + 267 g of boscalid in 1 kg) and Yamato 303 SE (233 g of thiophanat methyl + 70 g of tetraconazole L-1), used for dressing hyacinth and narcissus in the form of 20-min soaking of bulbs to limit the development of fungi on bulbs and substrate during the rooting period in a cold store and their impact on plant growth and development.
The research showed that silver stabilized hydrogen peroxide (H2O2-Ag+) at a concentration of 2-10% and fungicides used to treat bulbs limited the development of fungi on bulbs and substrate during the rooting period.
When the hyacinth and narcissus were in full bloom, biometric measurements were made of the above-ground parts of the plants, showing the growth and quality of the plants, and the content of chlorophyll, flavonoids and the NBI index (nitrogen balance index) were determined using the Dualex 4 m.
For the traits tested, it was found that silver stabilized hydrogen peroxide (H2O2-Ag+) at concentrations of 2-10% and the tested fungicides significantly increased the chlorophyll index and nitrogen balance parameters compared to the control plants.
However, depending on the tested plant species, the positive effect on the tested traits varied.
Such studies must therefore be carried out individually for a given plant species.
It should be emphasized that none of the tested agents used to treat hyacinth and narcissus bulbs was phytotoxic.
The obtained results may be useful for the practical application of silver stabilized hydrogen peroxide in the form of dressing hyacinth and narcissus bulbs before rooting in a cold room.
The research showed that silver stabilized hydrogen peroxide (H2O2-Ag+) at a concentration of 2-10% and fungicides used to treat bulbs limited the development of fungi on bulbs and substrate during the rooting period.
When the hyacinth and narcissus were in full bloom, biometric measurements were made of the above-ground parts of the plants, showing the growth and quality of the plants, and the content of chlorophyll, flavonoids and the NBI index (nitrogen balance index) were determined using the Dualex 4 m.
For the traits tested, it was found that silver stabilized hydrogen peroxide (H2O2-Ag+) at concentrations of 2-10% and the tested fungicides significantly increased the chlorophyll index and nitrogen balance parameters compared to the control plants.
However, depending on the tested plant species, the positive effect on the tested traits varied.
Such studies must therefore be carried out individually for a given plant species.
It should be emphasized that none of the tested agents used to treat hyacinth and narcissus bulbs was phytotoxic.
The obtained results may be useful for the practical application of silver stabilized hydrogen peroxide in the form of dressing hyacinth and narcissus bulbs before rooting in a cold room.
Authors
A.T. Wojdyła, J.S. Nowak, J. Bocianowski, N. Skubij, E. Pruszkowska, J. Wiśniewski, E. Waszkiewicz
Keywords
hydrogen peroxide, fungicides, inhibition, fungi on bulb surface and substrate, plant growth
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