The topics in the book as follows ;·         Domestıc Terms Of Trade For Olıve Productıon In Turkey (2009-2019)·         Functıonalıty Of Irradıatıon For Cereal Graıns In Sense Of Food Securıty And Covıd-19 Pandemic·         Factors Affectıng The Tree Specıes Composıtıon Of Keltepe Mountaın Forests·         The Relatıonshıp Between Lıght And Nıtrate In Vegetable Plants And Impacts Of Led Lıght Usage On Nıtrate Accumulatıon·         Resupınatus Nıger (Basıdıomycota: Agarıcales): A Rare Fungus From Turkey·         Oxıdatıve Stress And Defence Systems In Plants·         Effect Of Altıtude On Some Wood Propertıes: A Revıew·         Tree And Shrub Plants İn The Black Sea Region Of Turkey And Iucn Risk Categories