Skip to main content
. 2011 Nov 23;6(11):e27998. doi: 10.1371/journal.pone.0027998

Figure 1. Experimental design.

Figure 1

Each experimental unit (1.5 m×1.5 m) consists of a 0.5 m×0.5 m central plot (CP) surrounded by a 0.5-m-wide zone (surrounding zone). High, Medium and Low stand for homogenous, high, medium and low light supply, i.e. the whole unit received 100%, 40% and 10% natural light, respectively; Low contrast and High contrast represent heterogeneous, medium and low light supply, i.e. the central plot of the unit received 40% and 10% natural light, respectively, and the surrounding zone received 100% natural light.