Annals of Plant Protection Sciences
Year : 2003, Volume : 11, Issue : 1
First page : ( 86) Last page : ( 89)
Print ISSN : 0971-3573. Online ISSN : 0974-0163.

Effectiveness of Phylloplane Fungi in Induction of Localized Resistance Against Foliar Diseases of Mustard

Kaur Arvinder, Kolte S.J., Singh U.S.

Department of Plant Pathology, G.B Pant Univ of Agri. & Tech, Pantnagar, 263145, India

Abstract

A bioassay for induced localized resistance (ILR) to Albugo Candida in mustard was evaluated by cotyledon treatment using avirulent Alternana brassicae isolate D (10³ spores/ml), Collectrotnchum jalcatum (10⁶ spores ml), Cunidana lunata (10⁵ spores/ml), Helminthosporum sativum (10³ spores/ml), and Trichoderma harzianum isolate M₁ and M₂ (10⁶ spores/ml) Tn order to evaluate the spectum of ILR, another fungal pathogens Peronospora parasitica and virulent A brassicae isolate A were used The suspension was applied by placing droplets on the adaxial surface of cotyledon Development of white rust and Alternaria blight symptoms were significantly reduced on cotyledons pre-treated with A brassicae isolate D (AbD), and H sativum compared to check Among biotic agents, AbD provided maximum localized host reistance against the pathogen. The level of protection was higher against A canadida (52.7%) P parasitica (62.0%) compared to A brassicae isolate A (20.2%)

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Keywords

Alternana blight, Brassica juncea, Induced resistance.

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