Mark Ehlenfeldt

Dr. Mark Ehlenfeldt

Blueberry - Research Plant Geneticist

Marucci Center for Blueberry and Cranberry Research & Extension
125A Lake Oswego Road 
 Chatsworth, NJ 08019 Phone: 609-726-1590 ex. 4421

 Staff:  Robert Martin, Jr. - Biological Science Lab Technician           

                                    Matthew Kist - Field Technician

Research interests

• Identification and incorporation of resistance to two fungal diseases of blueberry, mummy berry (Monilinia vacinii-corymbosi) and anthracnose fruit-rot (Colletotrichum acutatum).

• Development of screening procedures to allow for early evaluation of resistance, mechanisms of resistance, and studies of inheritance are important aspects of this research. 

• The breeding program has ongoing studies of germplasm introgression, utilizing V. ashei, V. constablaei, and V. darrowi, and studies of fruit quality characteristics focused on organic acid composition and firmness.

The USDA blueberry breeding program co-operates with programs in seven states, and distributes materials of both highbush and rabbiteye blueberries. The program supports continued evaluation and variety release with state co-operators, and has released four cultivars in the last four years.

Publications (click on publication tab at left)