Submit or Track your Manuscript LOG-IN

Nematicidal activity of seaweeds against Meloidogyne javanica

Nematicidal activity of seaweeds against Meloidogyne javanica

S.A. Khan†, M. Abid and F. Hussain1

Dr. Abdul Ghaffar Laboratory of Aerobiology and Plant Pathology, Department of Botany
Federal Urdu University of Arts, Science and Technology, Gulshan-e-Iqbal Campus, Karachi,
Karachi-75300, Pakistan
1Department of Agriculture and Agribusiness Management, University of Karachi, Karach-
75270, Pakistan
†Corresponding author email: shaheena_khaan@yahoo.com

ABSTRACT

Root-knot nematodes (Meloidogyne spp.) are serious disease causing agents and attack nearly all types of plants. In
this study 32 seaweeds were evaluated to determine nematicidal activity against Meloidogyne javanica (egg
hatching and larval mortality tests) in vitro. Results revealed that seaweed biochemical potential in two different
solvents viz., water and methanol @ ratios 2.5, 5 and 10%. It is observed that Sargasssum tenerrimum, Padina
tetrastromatica and Melanothamnus afaqhusainii showed maximum egg hatching (96%) and larval mortality (99%)
and (100%), respectively in water and methanol extract @ 10% concentration after 72 hours exposure time.
Similarities between Ward’s cluster analysis of hatching egg and larval mortality in water and methanol extract of
different seaweeds showed significant difference. Methanol extract was more effective as compared to water extract.
In conclusion, use of seaweeds is positive sign against harmful microorganisms which are responsible for
considerable losses in agriculture yield.

To share on other social networks, click on any share button. What are these?

Pakistan Journal of Nematology

June

Pakistan Journal of Nematology, Vol. 42, Iss. 1, Pages 1-87

Featuring

Click here for more

Subscribe Today

Receive free updates on new articles, opportunities and benefits


Subscribe Unsubscribe