Table 1.

Correlation between the abundance of the known phytotoxic compounds from parthenium weed and the three measures of phytotoxicity in the laboratory. Values with asterisks indicate the components which were found to be statistically significantly correlated with the indicated toxicity measures via stepwise linear regression.

			Correlation with Phytotoxicity Measures
Compound	Formula	Accurate Mass	Germination	Radicle Length	Hypocotyl Length
Parthenin	C15H18O4	262.1140	−0.57	−0.41	−0.43
Ambrosin	C15H18O3	246.1256	−0.72 *	−0.54	−0.46
Coronopilin	C15H20O4	264.1362	−0.67	−0.47	−0.49
Damsin	C15H20O3	248.1412	−0.62	−0.55	−0.37
Chlorogenic acid	C16H18O9	354.0951	−0.60	−0.63 *	−0.61