Preheat the oven to 350 levels F (175 levels C). Grease a 9×5-inch loaf pan. Stir flour, baking powder, nuts, and salt collectively in a bowl.
Beat 1 cup sugar and butter collectively in a separate massive bowl till fluffy; beat in eggs one after the other. Stir in 1/2 cup orange juice and orange zest. Pour in flour combination, and stir till moistened; switch into ready loaf pan.
Bake within the preheated oven till a toothpick inserted into the middle of the loaf comes out clear, about 1 hour. Take away loaf from oven, however not from pan.
Mix 1/2 cup orange juice with 1/4 cup sugar in a small saucepan. Warmth and stir to dissolve sugar. Spoon glaze over scorching loaf. Let stand in pan for 10 minutes earlier than eradicating loaf to a rack to chill.