Morning Glories: 219 genes make the difference, 1 by dany12

dany12 wrote:
Good roots (light soil), a fertilizer with high P and K percentage, so the plants will expressed all their potentiels.soil pH can potentially affect the colors.

Many mutations are due to action of genes on the stamens, pistil or petals as shown in this sketch.
No doubt over the quality of the fertility.
Some genes induced sterility - the stamens and pistil are present but there is no pollen or no ovules.