Allelopathic effects of Cassia fistula L on germination and seedlings growth of Raphanus sativus L
Allelopathic effects of Cassia fistula L on germination and seedlings growth of Raphanus sativus L
- Author(s) Rakesh Kumar Joshi, Suniti Kumar Kuriyal, Neeta Joshi and Shanti Prakash Sati
- Year: 2024
- Month: March
- Volume: 61
- Pages: 189-206
Aqueous and organic solvent extracts of stem bark, leaves and pods of Cassia fistula L. and their residues were tested for their phytotoxic effects on seed germination and seedling growth of Raphanus sativus L. Bioassay with different solvents extracts revealed that inhibition by ethyl acetate extract of stem bark, leaves and pods was more than other extracts. Epiafzelechin and epicatechin (tannins or the building blocks of the proanthocyanidins) were present in the ethyl acetate extract of pods, kaempferol was obtained from the stem bark, while 1,8-dihydroxy-3-methyl anthraquinone (chrysophenol) and 1,8-dihydroxy-3-methyl-6-methoxy acetophenone (physcion) were found in the leaves of Cassia fistula L. The chemical studies revealed that epiafzelechin and epicatechin (tannins) most inhibited the plumule and radicle growth of Raphanus sativus.
