Villa, F., Silva, D.F. da, Stumm, D.R. e Rosa, D.D. 2020. Winter cold deficit in low subtropical climate region and blackberry varieties phenology. Scientia Agraria Paranaensis. 1, 1 (maio 2020), 66–71. DOI:https://doi.org/10.18188/sap.v19i1.23610.