TITLE:
In Vitro Efficacy of Botanicals against Rice Blast Pathogen Magnaporthe oryzae oryzae
AUTHORS:
Z. Nazifa, F. M. Aminuzzaman, L. Laila, M. K. Rehena
KEYWORDS:
Rice Blast, Magnaporthe oryzae oryzae (MoO), Botanical Extracts, Ethanol
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.12 No.4,
April
29,
2021
ABSTRACT: Rice is the most staple cereal
crop of Bangladesh and rice blast caused by Magnaporthe oryzae oryzae (MoO)
has become a major factor limiting rice yield in Bangladesh and throughout the
world. Eight botanicals extracted both in water and ethanol namely Kalijira (Nigella sativa), Turmeric (Curcuma longa), Ginger (Zingiber officinalis), Garlic (Allium sativum), Onion (Allium cepa), Neem (Azadirachta indica), Allamanda (Allamanda cathartica) and Aloevera (Aloe vera)
were tested against MoO in vitro in
the Mycology Laboratory, Department of Plant
Pathology, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh. All
the botanicals significantly reduced radial growth of the tested pathogen.
Maximum mycelia growth inhibition of MoO was achieved with water extract of turmeric (1:1 w/v) and ethanol extracts of neem
(1:4 w/v) with 86.57% and 92.62% mycelia growth inhibition at 14 DAI,
respectively.