Research Article

Suaveolic Acid: A Potent Phytotoxic Substance of Hyptis suaveolens

Figure 3

Effects of suaveolic acid on the shoot and root growth of garden cress, lettuce, Italian ryegrass, and barnyard grass seedlings. Means ± SE from three independent experiments with 10 seedlings for each determination are shown. Asterisks indicate a significant difference between control and treatment. , , and .