Mean phytochemical content of broccoli genotypic classes.

<p>A. Mean phytochemical content of broccoli F₁ hybrids versus open pollinated cultivars, and B. Mean phytochemical content of early, mid- and late-maturing cultivars grown across all trials at two locations (Maine and Oregon), in two seasons (Fall and Spring) and in two management systems (Conventional and Organic) and conventional management systems. See <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0095683#pone-0095683-t001" target="_blank">Table 1</a> for key to cultivar F1 hybrid versus open pollinated classification and maturity classification. Significance (* = P<0.05, ** = P<0.01, *** = P<0.001).