Biostimulant and Elicitor Responses to Cricket Frass (Acheta domesticus) in Tomato (Solanum lycopersicum L.) under Protected Conditions
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2023Abstract
Agriculture in the current century is seeking sustainable tools in order to generate plant
production systems with minimal negative environmental impact. In recent years it has been shown
that the use of insect frass is an option to be used for this purpose. The present work studied the effect
of low doses (0.1, 0.5, and 1.0% w/w) of cricket frass (Acheta domesticus) in the substrate during the
cultivation of tomatos under greenhouse conditions. Plant performance and antioxidant enzymatic
activities were measured in the study as explicative variables related to plant stress responses in
order to determine possible biostimulant or elicitor effects of cricket frass treatments during tomato
cultivation under greenhouse conditions. The main findings of this study indicated that tomato
plants responded in a dose dependent manner to cricket frass treatments, recalling the hormesis
phenomenon. On the one hand, a 0.1% (w/w) cricket frass treatment showed typical biostimulant
features...