Biostimulant based on Inula viscosa L. (Dittrichia viscosa L.), algae and microorganisms in the growth and defense of Spinacia oleracea L. and Lactuca sativa L.

D. Prisa¹

Section:Research Paper, Product Type: Journal-Paper
Vol.6 , Issue.11 , pp.1-6, Nov-2020

Online published on Nov 30, 2020

Copyright © D. Prisa . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
In this study the possibility of using a biostimulant based on Inula viscosa L. (Dittrichia viscosa L.) to improve the growth and quality of Spinacia oleracea L. and Lactuca sativa L. plants and protection against Pythium spp. was evaluated. I. viscosa plants play a role agro-ecological very important because: i) show high allelopathic activity as they produce chemical compounds toxic to other plant species; ii) act as a dwelling place for antagonists useful to combat plant pests and therefore fundamental in the biological struggle; iii) find application in the phyto-remediation of contaminated soil in processesn of phyto-extraction, bioaccumulation. The experiments, started in September 2020, were conducted in the greenhouses of CREA-OF in Pescia (Pt), Tuscany, Italy. The five experimental groups in cultivation were: i) group without biostimulant, irrigated with water and substrate previously fertilized; ii) group with microrganisms, irrigated with water and substrate previously fertilized; iii) group with algae, irrigated with water and substrate previously fertilized; iv) group with Inula viscose, irrigated with water and substrate previously fertilized; v) group with INORT: mix microorganisms + Inula viscosa + algae, irrigated with water and substrate previously fertilized. All Lactuca sativa L. and Spinacia oleracea L. plants treated with a biostimulant based on Inula viscosa showed a significant increase in the agronomic parameters analyzed compared to the untreated control. The results show that the use of the biostimulant introduced in the medium can improve the quality of treated plants by significantly increasing seed germination and plant growth. The data also show that the use of this product has effects on the protection of plants from Pithyum spp. Therefore, further interesting and innovative aspects of the use of this plant have been highlighted, given its acknowledged importance from a medicinal, melliferous and biodiversity point of view. Further experiments are currently underway to confirm the use of INORT as a possible product that can guarantee the grower a possible reduction of fertilizers and plant protection in horticulture.

Key-Words / Index Term :
Microorganisms; Sustainable applications; Plant extract; Rhizosphere, Plant stimulation

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