Morphological and physico-chemical characteristics of fruits of pepino (Solanum muricatum), wild relatives (S. caripense and S. tabanoense) and interspecific hybrids. Implications in pepino breeding - J. Prohens; M. C. Sánchez; A. Rodríguez-Burruezo; M. Cámara; E. Torija; F. Nuez (European Journal of Horticultural Science)