Institute of Mycology and Plant Pathology University of the Punjab, Lahore, Pakistan.
*Correspondence author: E-mail: rukhsanabajwa_mppl@yahoo.com
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This study evaluated the in vitro antifungal activity of aqueous, methanol and n-hexane shoot extracts (0, 1, 3 and 5%) of three rice varieties (Basmati-385, Basmati-386 and Basmati Super) against two phytopathogenic fungi [Ascochyta rabiei (Pass.) Lab. and Macrophomina phaseolina (Tassi) G. Goid]. Aqueous and n-hexane extracts significantly suppressed the in vitro growth of M. phaseolina. The aqueous and n-hexane extracts of different rice varieties caused 21–52% and 18–60% reduction in growth of M. phaseolina, respectively. However the effect of methanol extracts was non-significant. A. rabiei proved less susceptible to these extracts as compared to M. phaseolina. Only 1% aqueous extracts of Basmati 385 and Basmati 386 significantly declined the growth of this fungus, while, all other extracts either had insignificant effect or stimulated the fungal growth.
Antifungal, Ascochyta rabiei, genotypes, Macrophomina phaseolina, phytopathogens, rice
