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Articles by Anil Dhar
Total Records ( 2 ) for Anil Dhar
  M.R. Mir , Amina Khan , Anil Dhar and Bilal A. Wani
  The leaf of mulberry (Morus spp.) constitutes the only food to silkworm (Bombyx mori L.). Like all other crops, it is prone to attack by a number of pests and diseases which result in reduced leaf yield and quality. Among other diseases leaf spot and powdery mildew are important and cause much loss to mulberry leaf. Besides other defence systems, the plants defend themselves against pathogens by means of structural characteristics which act as physical barriers and inhibit the pathogen from gaining entrance and spreading through the host. Morphoanatomical features of some mulberry genotypes were studied in relation to incidence and intensity of leaf spot caused by Cercospora moricola (Cooke) and powdery mildew caused by Phyllactinia corylea. The present study was carried out on four years old mulberry trees of genotypes namely Goshoerami, Ichinose, Kairynezamigaeshi (KNG), Rokokuyaso, Chinese White, Tr-10 and one local genotype Chattatul Zangir for leaf spot and powdery mildew diseases. The Percent Incidence (PI) and Percent Disease Index (PDI) were calculated. Different anatomical features were studied as per standard laboratory methods. Results indicated that the anatomical features play an important role to hinder the infection and spread of the pathogens causing the diseases and hence can be used for rapid screening of mulberry genotypes for their resistance to these diseases.
  G.K. Ramegowda , Irfan Illahi , Vishal Mittal , Imtiyaza Akhter , Anil Dhar and M.A. Khan
  This study was conducted at Pampore in Kashmir valley, India during 2009-2011 cropping seasons to measure the incidence and severity of lesser mulberry pyralid, Glyphodes pyloalis Walker (Lepidoptera: Pyralidae) (LMP) and mulberry looper, Hemerophila atrilineata Butler (Lepidoptera: Geometridae) (ML). Fortnightly observations were made on incidence and severity from May to October. Influence of weather parameters on the seasonality and severity LMP and ML was quantified. LMP was recorded from July onwards until leaf fall in October during 2009 and 2010. It was recorded early during 2011 by May 2nd fortnight. Incidence and severity levels of ML were relatively lower compared to that of LMP. During 2009 and 2010 mulberry looper prevailed from July onwards till leaf fall in October. In contrast, during 2011 ML appeared a month late from August 2nd fortnight onwards with a steep increase during last two intervals of observation. Correlations were negatively significant at p = 0.01 for LMP incidence with minimum and maximum temperatures and number of rain days during same fortnight (SFN). Severity of LMP with preceding second fortnight’s morning relative humidity was negative and significant at p = 0.01. Correlations for both incidence and severity of ML with minimum temperature of SFN were negatively significant at p = 0.01. Multiple regression modules with weather parameters of SFN had higher probability and R2 values. There is need to continue the studies to establish precise relations with weather and pest incidence and severity.
 
 
 
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