na INLIS000000000003009 Ind 0010-1118003009 Somatic cell genetics of the potato (Solanum tubersum L.); intra and interspecific somatic hybridization VRIES, Sytske Eelkje door Sytske Eelkje de Vries Groningen Rijskuniversiteit te Groningen 1987 105 p. : ills. ; 24 cm. 105 p. : ills. ; 24 cm. 635.21-153VRIs Thesis(Doctor)-Rijksuniversiteit te Groningen, 1987 635.21-152 POTATOES SOMATIC HYBRIDIZATIONS CELLS 762/DTS/89