Source-demand Relations in Varieties of Basil in Two Protected Environments

The objective of this study was to compare the growth potential and total biomass production on three varieties of basil (Ocimum sp.) under soilless culture and two protected environments. The experiment was set up in a greenhouse and a shade house located in Xalisco, Nayarit in western Mexico during Fall 2012–Winter 2013. Steiner solution was used at concentration level of 75%, using three commercial varieties of basil (Thai, Dolly, and Medinette).  A randomized complete-block experimental design with five replicates was used. Periodic samples of five plants per experimental unit were recorded: plant height, leaf number, leaf area, and above-ground dry biomass. The leaf area index and net assimilation rate were recorded. The results showed significant differences for plant height, leaf number, and leaf area as a result of the production environment. Net assimilation rate depends on the growth and yield biomass production.