Table 3.

Comparative allelopathic effects (%) of isolated compounds on growth of tested plants.

Sample	Concentration (µg/mL)	L. sativa			E. crus-galli				S. altissima
		GR	RL	SL		GR	RL	SL		GR
Methanol		(8/8) a 0.0	(1.95) b 0.0	(0.76) c 0.0		(8/8) 0.0	(4.53) 0.0	(3.03) 0.0		(13/20) 0.0
MA	400	0.0	52.38	50.67		78.57	95.96	96.70		86.75
MB		100.00	94.71	84.59		100.00	100.00	100.00		100.00
MAB		58.33	91.82	82.82		100.00	100.00	100.00		100.00
ME	1000	0.0	+92.68	6.61		0.0	+16.48	+8.01		39.53
7KS		0.0	+60.93	13.65		nd	nd	nd		nd
ME-7KS		0.0	+93.00	5.71		0.0	13.33	29.52		94.66
pHA		0.0	63.14	37.01		0.0	58.46	36.12		44.66

Data shows inhibition percentages over the control; +, stimulation percentages over the control; MA, momilactone A; MB, momilactone B; MAB, mixture of momilactones A and B (1:1, v/v); ME, momilactone E; 7KS, 7-keto-stigmasterol; ME-7KS, mixture of momilactone E and 7-keto-stigmasterol (1:1, v/v); pHA, p-hydroxybenzoic acid; GR, growth rate; RL, root length; SL, shoot length; nd, not determined. Numbers in parentheses are baselines of negative control; ^a, number of germinated seeds; ^b,c, root and shoot lengths (cm).