1998 NORTH JERSEY TREE FRUIT RESEARCH
Prepared By Win Cowgill
Rutgrers Cooperative Extension
http://orchard.uvm.edu/win/

Rutgers Snyder Research and Extension Farm Projects

The goal has been to develop sustainable tree fruit production systems. Emphasis has been placed on the evaluation of new apple and peach cultivars and rootstocks adapted for Northern New Jersey growing conditions and marketing niche.

DEVELOPMENT OF A SUSTAINABLE APPLE PRODUCTION SYSTEM Established in 1990. Development of apple production systems for New Jersey and the northeast. Focuses on the evaluation of seven advanced scab resistant apple selections from the NJAES and other apple breeding programs for commercial adaptability and marketability. Established with funding from the USDA and NJ SARE grant programs.
Two cultivars look promising for commercial implementation: Liberty, a MacIntosh type cultivar, which is field immune to apple scab and extremely precocious. Enterprise, a late October apple, also field immune to apple scab and fireblight. Enterprise is a large fruited variety of high quality. May have potential as a processing apple. Ongoing studies on a calcium disorder called Mystery Spot have been established at the Snyder Farm.
W. P. COWGILL,D. POLK, W. TIETJEN, M. MALETTA, J. GOFFREDA

SCAB RESISTANT APPLE CULTIVAR EVALUATIONS
Established in 1993. Evaluate advanced selections from the NJAES and other COOP disease resistant apple cultivars for commercial adaptability in northern New Jersey. Fifteen advanced scab resistant selections from the breeding programs of NJAES, PRI and Cornell. Resistant apple cultivars are being evaluated for performance, precocity and fruit quality. Established with NJ SARE funding and maintained with Snyder Farm local Needs grant funding. Goldrush and CL20-22 are the highest quality cultivars in this trail. Goldrush has been released commercially. It is field immune to apple scab and is a golden delicious type with a unique flavor and crispness.
W.P. COWGILL, W. TIETJEN, D. POLK, M. MALETTA, J. GOFFREDA,J. COMPTON

SCAB RESISTANT APPLE CULTIVAR/ROOTSTOCK EVALUATION Established in 1993 to evaluate disease resistant cultivars for commercial planting in North Jersey. The performance, compatibility and interaction of eight commercially promising scab resistant cultivars on five dwarfing rootstocks adapted for North Jersey growing conditions are being evaluated. Established with NJ SARE funding. and maintained with Snyder Farm local Needs grant funding.
Liberty on M26 is the best performing combination. P22 rootstock is maturing into a precocious weak growing tree best suited for vigorous cultivars in super high density plantings of 1000 trees per acre or higher
W.P. COWGILL, W. TIETJEN, D. POLK, J. COMPTON