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European journal of molecular biology and biochemistry

Volume 1, Issue 5, 2014
Mcmed International
European journal of molecular biology and biochemistry
Issn
2348 - 2192 (Print), 2348 - 2206 (Online)
Frequency
bi-annual
Email
editorejmbb@mcmed.us
Journal Home page
http://mcmed.us/journal/ejmbb
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Abstract
Title
MANAGEMENT OF LEAF BLIGHT DISEASE IN SOLANUM NIGRUM USING FUNGICIDES AND BIOCONTROL AGENTS
Author
B.Meena* and K.Rajamani
Email
meepath@rediffmail.com
keyword
Solanum nigrum, Alternaria.
Abstract
Leaf blight disease of Solanum nigrum caused by Alternaria solani is a serious fungal disease in Tamil Nadu state of India. Field experiment was conducted for the integrated management of leaf blight disease in S. nigrum. Spraying with fungicides and biocontrol agents was done on 30 and 40 days after sowing. The results revealed that spraying mancozeb (0.2%) on 30 DAS and Pseudomonas fluorescens (2 g/l) on 40 DAS recorded the lowest leaf blight disease intensity of 13.6% and 15.8% at 45 DAS and 60 DAS respectively. In control, the highest leaf blight disease intensity of 31.4 per cent and 42.4 per cent was recorded on 45 and 60 DAS respectively. In addition to disease reduction, the leaf yield was also found to be maximum of 22.9 t/ha in the treatment of spraying mancozeb (0.2%) on 30 DAS and P. fluorescens (2 g/l) on 40 DAS. In control, the lowest yield of 15.6 t/ha was observed.
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