For the past two weeks, I have been in a group of 3 studying how different lights affect plant growth. So we growth two chickpeas plants and put one in white light and the other in blue light.
These are the results:
Days Blue light White light (cm) (cm) __________________________________ 1 6.6 8.2 2 8.5 9.9 3 11.0 11.6 6 15.8 16.0 7 17.2 17.6 8 18.0 18.2 9 19.6 18.7
The blue-light plant didn't really branch out a lot whereas the white-light plant branched out a lot.
My question is:
What caused the white light plant to not grow as fast like blue; Why did the white light plant branch out?
What I read about the second question:
Experiments with blue light resulted in plants that are wider than usual. This can be explained by reference to the fact that more flowering buds (more branches) could form by reason of diminished apical dominance at the growth point. http://www.canna.com.au/influence_of_colours
I don't understand why the blue lights plant did not branch out a lot like the white light ones?