In this paper we have proposed evaluation how the biostimulator ASFAC BC 04 improve product quality of the Stanley plum tree. This study was performed into a plantation of SC Ceravis SA located in Itesti village of Bacau County in 2013 and 2014.This covering a surface of 2 hectares with 9-10 year-old trees at a 5-metre planting distance between rows and 3 metres on the row, corresponding to a density of 667 pomi/ha. The fruit in the lot treated with ASFAC BC 04 presented a marketable qualities such as size and intense colour and a good productivity. For all biometric and biochemical parameter analyzed was registered a positive results.
