>>1
>The world of Bread
Yes, that's possible. Although "Мир хлеба" might be more obvious if this was the main meaning that was meant.
>(A or The)daylight of bread
No, "свет" just means "light", not "daylight" (дневной свет).
>(A)Light on bread
No, that would be "свет на хлебе", whereas "свет хлеба"="the light of bread" or "The Bread's Light" (the title I chose).