Celem badań było określenie wpływu wybranych związków chemicznych i preparatu Biosept 33 SL (33% ekstrakt z miąższu i nasion grejpfruta) na zdrowotność oraz kiełkowanie nasion marchwi odmiany Amsterdamska i odmiany Berlikumer 2. Nasiona moczono przez10, 20 i 30 minut w roztworze nadtlenku wodoru (3%), roztworze kwasu mlekowego (5%) oraz preparacie Biosept 33 SL (0,5%). Kontro­lę stanowiły nasiona moczone w wodzie destylowanej przez 10, 20 i 30 minut oraz nasiona nietraktowane. Nasiona obu odmian byływ różnym stopniu zasiedlone przez grzyby rodzaju Alternaria. Traktowanie nasion obu odmian roztworami nadtlenku wodoru, kwasu mlekowego i preparatu Biosept 33 SL bez względu na czas trwania zabiegu zmniejszało ich stopień zasiedlenia przez grzyby rodzaju Alter­naria oraz zwiększało odsetek nasion wolnych od grzybów. Traktowanie nasion odmiany Amsterdamska roztworami H2O2 przez 20 minut i kwasu mlekowego przez 10 minut zwiększało ich kiełkowanie po 14 dniach, w stosunku do nasion nietraktowanych i moczonych w wo­dzie destylowanej. Niezależnie od sposobu i czasu traktowania nasion zaobserwowano poprawę kiełkowania oraz zmniejszenie odsetka nasion martwych u odmiany Berlikumer 2 w stosunku do nasion nietraktowanych.

The aim of the study was to determine the effect of selected chemical compounds and the preparation Biosept 33 SL (33% extract from grapefruit pulp and seeds) on the health and germination of carrot seeds of the Amsterdamska cultivar and the Berlikumer 2 cultivar. The seeds were soaked for 10, 20 and 30 minutes in a solution of hydrogen peroxide (3%), a solution of lactic acid (5%) and the preparation Biosept 33 SL (0.5%). The control consisted of seeds soaked in distilled water for 10, 20 and 30 minutes and untreated seeds. The seeds of both cultivars were colonized by fungi of the Alternaria genus to a varying extent. Treating the seeds of both cultivars with solutions of hydrogen peroxide, lactic acid and the preparation Biosept 33 SL, regardless of the duration of the treatment, reduced their degree of colonization by fungi of the Alternaria genus and increased the percentage of seeds free from fungi. Treatment of seeds of the Amster­damska cultivar with H2O2 solutions for 20 minutes and lactic acid for 10 minutes increased their final count compared to untreated seeds and seeds soaked in distilled water. Regardless of the method and time of seed treatment, an improvement in germination was observed, as well as a reduction in the percentage of dead seeds in the Berlikumer 2 cultivar compared to untreated seeds.

ekstrakt z grejpfruta; nadtlenek wodoru; kwas mlekowy; kiełkowanie nasion; zdrowotność nasion; Alternaria spp.; grapefruit extract; hydrogen peroxide; lactic acid; seeds germination; seeds health

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