Re: What type of light is best for the different stages of growth in plants?

Hi:

You asked a broad question.  The length of exposure time to light, blue 
light, red light and far-red light indeed play very important role in 
regulation of plant growth and flower development, but the effects are 
relative to the affecting time of lights. For example, cocklebue flowers 
only when dark time exceeds 8.5 hours per day, but many wheat can 
only flower when a critical day length has been reached. For some plants, 
far-red light can promote flower while in other plants it will inhibit. 
Since I do not know what kind of plants you are growing, I can not 
simplely "yes" or "no". However, I think the soft white floresent bulb your 
are using is enough for most kinds of plants, at least in my case ( I grow 
Arabidopsis) it is sufficient.