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EVALUATION OF ADVANCED RICE CULTURES AND MANAGEMENT OF PANICLE MITE Steneotarsonemus spinki Smiley

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Title EVALUATION OF ADVANCED RICE CULTURES AND MANAGEMENT OF PANICLE MITE Steneotarsonemus spinki Smiley
 
Creator SURESH, D
 
Contributor SHASHI BHUSHAN, V
 
Subject fungi, rice, grain, bacteria, planting, biological phenomena, acaricides, developmental stages, yields, land resources
Steneotarsonemus, spinki, Smiley
 
Description Experiments for screening of advanced (promising) rice cultures against
panicle mite Steneotarsonemus spinki, chemical management strategies against S.spinki
and identification of pathogens associated with panicle mite or glume discolouration
were carried out during kharif , 2010. Among the 49 rice cultures evaluated, eight
cultures viz., RNR 898, RNR 9038, RNR 8913, RNR 8860, RNR 2458, Godavari
Isukalu, NSN 21184 and NSN 34949 were moderately resistant against panicle mite
due to their well exerted panicles and early duration. Among the chemical treatments
evaluated for their performance against panicle mite, spiromesifen + propiconazole,
diafenthuron + propiconazole and fenpyroxymate alone treatments effectively
controlled panicle mite and associated grain discolouration. In terms of increase in
grain yield, spiromesifen + propiconazole, with 24.77 per cent increase in grain yield
over untreated control, was the best. Seven pathogens were identified to be associated
with grain discolouration / panicle mite based on their morphological and colony
growth characters of seed microflora observed on PDA medium which includes
Aspergillus, Fusarium, Alternaria, Curvularia, Rhizophus, Xanthomonas and
Actinomycetes.
 
Date 2016-06-07T15:06:34Z
2016-06-07T15:06:34Z
2011
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/66971
 
Language en
 
Relation D8856;
 
Format application/pdf
 
Publisher ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY