1, Variety difference: Heart radish is a common vegetable, and there are differences between its color and variety. Some varieties of radish have white or light red hearts, while others have deep red or black hearts. Because of the genetic differences among different varieties, radish hearts show different colors.

2. Growing environment: The growing environment is also an important factor affecting the color of radish. For example, nutrients in the soil, light, water and other conditions will affect the color of radish heart.