Allelopathy Journal
  • Year: 2007
  • Volume: 19
  • Issue: 2

Phytotoxic effects of Cassia uniflora leaf leachates on germination and seedling growth of radish (Raphanus sativus) and mustard (Brassica juncea)

  • Author:
  • N.A. Ghayal1,, K.N. Dhumal1,2, N.R. Deshpande1,3, A.M. Kulkarni1,3, A.U. Phadke1,3, S.M. Shah1,3
  • Total Page Count: 12
  • Page Number: 361 to 372

1Department of Botany, Abasaheb Garware College, Pune - 411004, India.

2Department of Botany, University of Pune, Pune - 411007, India.

3Department of Chemistry, Sir Parshurambhau College, Pune - 411030, India.

*Correspondence Author. E. Mail: gnivedita_ghayal@rediffmail.com

Abstract

The leaf leachates of Cassia uniflora weed stimulated the seed germination of Brassica juncea and Raphanus sativus at low concentrations (2.5–5%), but higher concentrations (15–20%) were most inhibitory to both crops. The higher concentrations were inhibitory to both seed germination and seedling growth. The phytochemical and TLC analyses showed that Cassia leaves were rich in phenolics and various neutral and nonpolar compounds and allelochemicals (tannins, glycosides, proteins and carbohydrates).

Keywords

Allelochemicals, allelopathy, bioassay, Brassica juncea, Cassia uniflora, germination, Raphanus sativus