Plum Tree named ‘HoneySweet’

Abstract

A new and distinct variety of plum is transgenic and is characterized by the presence of the plum pox virus coat protein gene and genes for kanamycin resistance (NPTII) and β-glucuronidase (GUS). The plum pox virus coat protein transgene imparts a high level of resistance to plum pox virus. In field tests, ‘HoneySweet’ has been shown to be immune to transmission of plum pox virus by the natural aphid vectors present at the field test site. When ‘HoneySweet’ is bud-graft inoculated with plum pox virus, it supports only a very low level of virus and is symptomless or shows only transient, very mild symptoms. Fruit of ‘HoneySweet’ is large and sweet, firm and attractive. The tree is productive vigorous, with an upright growth habit.

We claim:  
     
       1. A new and distinct variety of plum tree, substantially as shown and described, which is large, productive, vigorous with an upright growth habit, contains the plum pox virus coat protein gene and is thereby resistant to plum pox virus infection, and produces annual crops of medium to large size, freestone fruit with yellow flesh of firm texture and sweet flavor and blue skin.