0000000000351482
AUTHOR
L. Badalucco
Herbicidal activity of essential oils extracted from different Eucalyptus and Citrus species against Avena fatua
Weeds are a serious threat for crop yield and quality since they compete for water, light, soil nutrients and space. Avena fatua L. is one of the ten worst annual weeds of temperate agricultural regions of the world. It could reduce annual crop yields by as much as 70%. The main traits of this species include high fecundity, self-pollination, and variable degrees of primary seed dormancy. A. fatua is in the 4th position of herbicide resistant weeds in the word. It has developed resistance to eight different modes of action. .. The European legislation also supports weed control by means of Integrated Pest Management. It is important to manage A. fatua interference preventing environmental p…
Soil bioindicators and weed emergence as affected by essential oils extracted from leaves of three different Eucalyptus species
The widespread use of synthetic herbicides has resulted in herbicide-resistant weeds, altered ecological balance and negative effects on human health. To overcome these problems, efforts are being made to reduce the reliance on synthetic herbicides and shift to natural products. Essential oils (EOs) extracted from plants have been demonstrated to have potential herbicide activity. EOs, composed by volatile organic compounds and characterized by a strong odor, are used in the cosmetic, pharmaceutical and food industries as they are thought to be safe compounds for humans, animals, and the environment. EOs extracted from Eucalyptus leaves have antimicrobial, antiviral, fungicidal, insecticida…
Effetti dell’applicazione in post emergenza degli oli essenziali di eucalipto sulle piante infestanti e sulla comunità microbica del suolo
L'uso diffuso di erbicidi sintetici ha un impatto negativo sulla salute umana e sull’ecosistema. Per il superamento di questi problemi, si stanno valutando soluzioni alternative per ridurre l’utilizzo di erbicidi sintetici. Molti studi hanno dimostrato che gli oli essenziali (EO) estratti da alcune piante hanno un'attività erbicida. Gli EO, sono costituiti da composti organici volatili e caratterizzati da un forte odore; vengono utilizzati dalle industrie cosmetiche, farmaceutiche e alimentari in quanto sono considerati composti sicuri per l’uomo, gli animali e l'ambiente. Diversi studi hanno dimostrato che gli EO estratti dalle foglie di eucalipto hanno effetti antimicrobici, antivirali, f…
Dynamics of carbon pools in a soil covered with different forest tree species after controlled heating and wetting
Fire-induced soil heating deeply affects soil organic C pools and their dynamics. The objective of this study was to investigate, in a soil covered with different forest tree species (Eucalyptus camaldulensis, E. occidentalis, Pinus halepensis, and Cupressus sempervirens), the effect of controlled heating on C pools and C mineralization dynamics. Soil samples were heated under controlled condition in laboratory (160 and 380°C) and then wetted with distilled or sea water to simulate the extinction of wildfires. Soil organic C pools react to heating in different way depending on forest tree species. Total organic C was almost halved following the heating of soils at 380°C. Soil covered with P…