Phytotoxic Metabolites from <i>Hyptis</i> Species: Chemical Profiling and Bioherbicide Activity Against <i>Amaranthus</i>.

ABSTRACT: The phytotoxic effects of extracts from Hyptis crenata ( Hcre ), Hyptis suaveolens ( Hsua ), Hyptis saxatilis ( Hsax ), Hyptis campestris ( Hcam ), and Hyptis brevipes ( Hbre ) were evaluated against three Amaranthus weed species under controlled germination chamber conditions. Extracts Hcre , Hsua and Hsax inhibited seed germination by 85-93% relative to the control and markedly suppressed radicle and hypocotyl growth in Amaranthus viridis and Amaranthus hybridus in Petri dish assays. At 200 ppm, Hcre and Hsax reduced radicle and hypocotyl lengths by up to 90% in both species, comparable to the e

SUBMITTER: Silva MA 

PROVIDER: S-EPMC12572983 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature