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Phytotoxic Phenolic Compounds in Sericea Lespedeza Residues 1
Author(s) -
Langdale George W.,
Giddens Joel E.
Publication year - 1967
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1967.00021962005900060028x
Subject(s) - protocatechuic acid , ferulic acid , vanillin , lespedeza , chemistry , vanillic acid , coleoptile , botany , food science , biochemistry , biology , antioxidant
Sericea lespedeza ( Lespedeza cuneata ) stem residues incorporated into soils were effective in depressing corn growth. Four phenolic compounds—protocatechuic acid, vanillin, ferulic acid, and p‐coumaric acid—were detected by thin layer or gas chromatographic techniques in sericea residues. Stems contained the greatest amount of these compounds. Higher concentration of protocatechuic acid than other phenolic compounds was detected. The protocatechuic acid appeared to be less effective in inhibiting auxin activity of indoleacetic acid in Avena coleoptiles than the smaller concentrations of vanillin, ferulic acid, and p‐coumaric acid.