Assessment of the Bioweedicidal effects of Alternaria alternata Metabolites against Parthenium species

  • Mukesh Meena
  • Vishal Prasad
  • R S Upadhyay

Abstract

Three different isolates of Alternaria alternata were
isolated from three different weed species viz. Eichhornia
sp., Achyranthes sp. and Parthenium sp. All
the isolates were checked for production of secondary
metabolites by performing TLC analyses of their respective
culture filtrates. Results of TLC analyses revealed
production of secondary metabolites by all the isolates.
A very considerable reduction in the germination of the
Parthenium seeds was observed following treatment
with different culture filtrates at their full strength as
well as half strength. The observed reduction in germination
was 27% by isolate no. 1, 44% by isolate no. 2
and 37% by isolate no. 3 using their full strength culture
filtrates respectively. When half strength culture filtratewas
used the reduction in germinationwas by 17%,
20% and 27% by the three isolates respectively. The root
length of the germinated seedlings was reduced by 51%,
53% and 42% following treatment with the full strength
culture filtrate of the three isolates 1, 2 and 3 respectively
while in case of half strength culture filtrate of the
three isolates 1, 2 and 3 the root length got reduced by
23%, 22% and 19% respectively. The shoot lengths of
the germinated seedlings was reduced by 45%, 41% and
48% following treatment with the full strength culture
filtrate of the three isolates 1, 2 and 3 respectively while
in case of half strength culture filtrate of the three isolates
1, 2 and 3 reduced the shoot length by 20%, 15%
and 22% respectively. These findings show the potentials
of Alternaria alternata isolates and their metabolites
for bioweedicidal properties against Parthenium
sp.

Published
2016-03-15
How to Cite
MEENA, Mukesh; PRASAD, Vishal; UPADHYAY, R S. Assessment of the Bioweedicidal effects of Alternaria alternata Metabolites against Parthenium species. Bulletin of Environmental and Scientific Research, [S.l.], v. 5, n. 1, p. 1-7, mar. 2016. ISSN 2278-5205. Available at: <http://besr.org.in/index.php/besr/article/view/60>. Date accessed: 17 sep. 2019.
Section
Articles