Preheat oven to 325°.With fingers, carefully loosen the skin from both sides of turkey breast. Combine lemon juice and oil; brush under the skin. Combine the pepper, rosemary, thyme and garlic salt; rub over turkey.
Place onion and celery in a 3-qt. baking dish. Top with turkey breast, skin side up. Pour wine into the dish.
Bake, uncovered, 2 to 2-1/2 hours or until a meat thermometer reads 170°, basting every 30 minutes with pan drippings. (Cover loosely with foil if turkey browns too quickly.) Cover and let stand 15 minutes before carving. Yield: 10-12 servings.