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Allelopathic Effect of Extracts of Pomegranate (Punica granatum), Eucalyptus (Eucalyptus spp.) and Noni (Morinda citrifolia) on Germination and Development of Lettuce Seeds (Lactuca sativa), Tomato (Solanum lycopersicum) and Pepper (Capsicum baccatum)

Thainan Brumati, Edvandro Luis Sales Carneiro, Naiara Karime Joverno Artico, Luciana Teixeira De Paula, Cynthia Venâncio Ikefuti, Uderlei Donizete Silveira Covizzi and Idiberto José Zotarelli Filho

The germination tests were carried out in the presence of extracts of the fruit of pomegranate (Punica granatum), noni (Morinda citrifolia) and leaves of eucalyptus (Eucalyptus spp.), with commercial seeds of lettuce (Lactuca sativa), tomato (Solanum lycopersicum) and pepper (Capsicum baccatum). The extracts were extracted and applied inside the Petri plates with filter paper base with the seeds already distributed in the plates. The seeds of all the germinated crops in the presence of the extract of the Noni fruit caused an accelerated germination and a greater development compared to the control. As the extracts of pomegranate and eucalyptus retracted the germination and delayed its development compared to Noni extract, all followed by a water check.