In Mediterranean area there are few candidate crops as dedicated for biomass production, due to water shortage during spring-summer time. According to the sustainability criteria some native perennial grasses could be included since they are adapted to these environments and can utilize water more efficiently than annual crops even though sometime are more difficult to grow. In the present work a comparison between four native perennial grasses has been carried out using low input levels. S. spontaneum showed is great potentiality respect to the other studied grasses in term of aboveground biomass yield.
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