Ecklonia Maxima Extract Effect in Tissue Regeneration of Symbionts at in Vivo Heteroplasmic Grafting of Some Tomatoes

Abstract

The research was conducted to determine the Ecklonia maxima extract effect in the symbiont accretion at the in vivo heteroplasmic grafting of some tomatoes. E. maxima or sea bamboo is a seaweed used for obtaining of organic extracts used as stimulators in horticulture because consists the natural plant hormones such as auxins and cytokinins which have optimal role in cell division, important activity for tissue regeneration. The experimental variants were grafted plants, combinations between different symbionts, cultivar fragments from Lycopersicon esculentum specie. The symbionts were two scions, F1 hybrids, 'Siriana' (Romanian cultivar), 'Abellus' (Dutch cultivar) and two rootstocks, 'Buzău' variety (Romanian cultivar), 'Emperador' F1 hybrid (Dutch cultivar). The algae extract used had auxins (11 mg/L) and cytokinins (0.3 mg/L). Two treatments were applied before grafting on scion and rootstock, 1 mL/500 mL water and a treatment at grafting on soil, 5 mL/L water. Control variant was without hormone extract. Determinations, observations and interpretations of the algae effect were made on symbionts. The best results on tissue regeneration were obtained in plants treated with sea bamboo extract compared to untreated control plants. The E. maxima extract influenced the tissue regeneration.

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