Preheat oven to 400 degrees F. Coat 12 muffin cups with cooking spray.

Combine apricots and 1/4 cup orange juice in a small bowl. Cover with vented plastic wrap and microwave on High for 1 minute. (Alternatively, bring to a simmer in a small saucepan. Remove from the heat.) Set aside to plump.

Whisk whole-wheat flour, all-purpose flour, 3/4 cup wheat germ, baking powder, baking soda and salt in a large bowl.

Whisk eggs and brown sugar in a medium bowl until smooth. Whisk in buttermilk, oil, orange zest, vanilla and remaining 1/4 cup orange juice. Add to the dry ingredients and mix with a rubber spatula just until moistened. Add the plumped apricots and juice and mix just until blended. Scoop the batter into the prepared muffin cups. Sprinkle with remaining 1 tablespoon wheat germ.

Bake the muffins until lightly browned and the tops spring back when touched lightly, 15 to 25 minutes. Let cool in the pan for 5 minutes. Loosen the edges and turn the muffins out onto a wire rack to cool slightly before serving.

Tip: No buttermilk? You can use buttermilk powder prepared according to package directions. Or make "sour milk": the ratio is 1 tablespoon lemon juice or vinegar to 1 cup milk.