Table 4.

Inhibitory potential of 2α,3β,7β,23-tetrahydroxyurs-12-ene-28-oic acid on shoot height and root length of L. sativa, R. sativus, and E. crus-galli, compared with p-hydroxybenzoic acid.

Compounds	IC50 in mM for Inhibition of Shoot Height			IC50 in mM for Inhibition of Root Length
	L. sativa	R. sativus	E. crus-galli	L. sativa	R. sativus	E. crus-galli
The compound 1	1.33a ± 0.02	-	2.62a ± 0.04	1.36a ± 0.02	8.52b ± 1.6	0.41a ± 0.02
p-Hydroxybenzoic acid	2.47b ± 0.03	-	15.33b ± 1.5	1.41b ± 0.01	5.27a ± 1.3	2.11b ± 0.04

Values are means ± SE (standard errors); Values in the columns are the quantities (mM) need to inhibit 50% shoot height and root length of L. sativa, R. sativus, and E. crus-galli. Values in a column with similar letters are not significantly different (p < 0.05). -: measurements were not conducted.