Author:
MEENA RAM PRASNNA,SARAN PARMESHWAR L,KALARIYA KULDEEPSINGH A,MANIVEL P
Abstract
Alternaria species are causing diseases over broad range of agro-horticultural important crops with economic impact. The present experiment was conducted on leaf blight disease of chandrasur (Lepidium sativum) and the pathogen identified as Alternaria alternata. The fungus produces profuse dark brown to blackish mycelium on potato dextrose agar and transverse as well as longitudinal septate conidia. Attempts were also made to investigate the suppressive potential of fungicides and plant extracts. In vitro evaluation of fungicides, viz. Mancozeb, Metalaxyl- MZ, Copper oxy-chloride, Copper hydroxyl- chloride, Carbendazim, Azoxystrobin, Tebuconazol, Nativo and leaf extracts of A.indica, P. pinnata and M. alliacea was performed following the “poisoned food techniqueâ€. Among the tested fungicides Tebuconazole + Trifloxystrobin and Tebuconazol (0.1%) were found most effective to inhibit the mycelium growth up to 89% and neem leaf extract (5.00%) was quite superior over the other plant extracts. Assessment of infected seed samples registered 17.40% and 42.00% reduction in oil content and seed weight, respectively, under the severe epiphytotics.
Publisher
Indian Council of Agricultural Research, Directorate of Knowledge Management in Agriculture
Subject
Agronomy and Crop Science
Reference25 articles.
1. Bairwa S K, Prasad D, Shekhawat U S, Rai P K and Koli R. 2015. Disease management in Indian mustard (Brassica juncea) through integrated approaches. Annals of Agricultural Research New series 36(3): 251–57.
2. Caesar A J and Lartey R T. 2009. First report of a leaf blight caused by Alternaria brassicae on the invasive weed Lepidium draba in North America. Plant disease 93: 846.
3. Dang H X, Pryor B, Peever T and Lawerence C B. 2015. The Alternaria genomes database: a comprehensive resource for a fungal genus comparised saprophytes, plant pathogens, and allergic species. BMC Genomics 16: 239.
4. Devappa V and Thejakumar M B. 2016. Morphological and physiological studies of Alternaria alternata causing leaf spot disease of chilli (Capsicum annuum L.). International Journal of Applied and Pure Science and Agriculture 2(5): 2394–5532.
5. Ito K, Tanaka A, Hatta R, Yamamoto M, Akimitsu K and Tsuge T. 2004. Dissection of the host range of the fungal plant pathogen Alternaria alternata by modification of secondary metabolism. Molecular Microbiology 52: 399–411.
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