During 1996- 1997, sixty samples were collected from apricot in Hebei Province, from which nineteen ice nucleation active bacterial strains were isolated. Nine
DUS testing technique used for plant variety protection was reviewed in the paper, and somesuggestions were made on how to establish the appropriate technology
A diploid strawberry (Fragaria vesca L. ) which can naturally produce unreduced gametes (2n pollen) and doubled-unreduced gametes (4n pollen) was used to study