Multi-State/Institution
- Apple Testers Input Database
- NECC-1009: Multidisciplinary Evaluation of Tree Fruit Cultivars
- NC-140 Regional Rootstock Research Project
- Virtual Orchard Collaborative Orchard News and Information
- International Organic Fruit Symposium
Northeast
Cornell University
- Cornell Gardening Resources, Apple Tree Rootstocks
- Five Important Apple Varieties Named by Cornell
- Apple Varieties and their Uses for Varieties Sold at Cornell Orchards, Ithaca, NY
- Cornell Pest Management Guidelines for Tree Fruits