The 16 most abundant glucosinolates showed divergent patterns of change during this time course. During the first two days after planting; there was a general increase in all glucosinolates causing total concentration to rise to almost 1.60 nmol (seedling) 1; approximately 3.3% of dry weight. After this point; specific increases were observed for glucosinolates associated with vegetative tissues. Increases of at least 6-fold were detected for 4MSOB; 5-methylsulfinylpentyl-; 1MOI3M and 4-methoxyindol-3-ylmethyl- glucosinolate; while 6-methylsulfinylhexyl-; 7-methylsulfinylheptyl-glucosinolate and I3M increased about 2-fold (Brown et al. 2003)