2006-09-02 12:40:14 · 3 answers · asked by Kevin H. 3 in Science & Mathematics ➔ Botany
Light is absorbed by chlorophyll. However, there are two forms of chlorophyll- A and B. Of these, one absorbs more to the red side of the spectrum, and the other absorbs more to the blue side. See the chart in reference 1, below.
Changing the ratio between these two types of chlorphyll will cause an apparent change in the coloration of the plant, as more blue is absorbed, or more red is absorbed. Of course, the balance of the light is reflected, making the plant look more red or blue, respectively. Some types of photosynthetic plants look reddish for this reason, and others may look more blue.
Other compounds that help plants photosynthesize by "capturing" light outside of the absorption spectra of A and B chlorophylls will help, and can also affect the coloration of the plant.
2006-09-02 13:46:54 · answer #1 · answered by Anonymous · 0⤊ 0⤋
You should ask Michael Savage of the Savage Nation......he has a doctorate in Botany! I just know blue spruce is beautiful!
2006-09-02 19:48:33 · answer #2 · answered by WitchTwo 6 · 0⤊ 1⤋
Pigments in the leaves.
2006-09-02 19:51:20 · answer #3 · answered by Display Name 3 · 0⤊ 1⤋