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Effect of vermicompost and neem cake on rootknot nematode, Meloidogyne incognita infecting tomato

KrishiKosh

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Title Effect of vermicompost and neem cake on rootknot nematode, Meloidogyne incognita infecting tomato
 
Creator Mohapatra, Chitta Ranjan
 
Contributor Dash, B.K
 
Subject Pot Culture, Tomato, Neem Cake
 
Description Pot culture experiment was conducted in the net house of the Department of Nematology, College of Agriculture, OUAT, Bhubaneswar to study the “Effect of vermicompost and neem cake on rootknot nematode, (Meloidogyne incognita) infecting tomato”. The first experiment comprised of 10 treatments in order of T1= Vermicompost @ 500g/m², T2= Vermicompost @ 250g/m², T3= Neem cake @ 100g/m², T4= Neem cake @ 50g/m², T5= T1 + T3, T6= T1 + T4, T7= T2 + T3, T8= T2 + T4, T9= Carbofuran as standard check @ 0.3g a.i./m² and T10= Untreated Check. Each treatment was replicated thrice following complete randomised design. Results indicated that all treatments increased the plant growth parameters and reduced root knot nematode population and other infection parameters over check. But combined application of vermicompost @ 500g/m2 along with neem cake @ 100g/m2 (T5) performed the best by increasing the shoot and root length (86.17 and 82.36%), fresh root and shoot weight (79.44 and 50.24%) and fruit weight (70.48%) significantly with corresponding decrease in root galls (78.99%) and final root knot nematode population in soil (79.57%) over untreated check. In the second experiment, effect of vermiwash on penetration of juveniles of root knot nematode (Meloidogyne incognita) into tomato seedlings at different interval of time (treatments) was assessed. It comprised of six treatments viz. T1, T2, T3, T4, T5 and T6 at 4, 8, 12, 24, 48 and 72 hours respectively. For each treatment an untreated check was maintained where no vermiwash was added and only nematodes were inoculated. No penetration was recorded up to 8 hours, neither in vermiwash treated tomato roots nor in the corresponding untreated check (T1 and T2). At 12 hours interval (T3), nematode penetration was reduced by 100% in vermiwash treated roots over the corresponding untreated check. At 24 hours interval (T4) penetration was decreased by about 54.54% in vermiwash treated tomato roots over the untreated check. This was followed by 53.33% decline in penetration in vermiwash treated tomato roots over check at 48 hours interval (T5). Reduction in nematode penetration at 72 hours interval (T6) was same as that of 48 hours interval.
 
Date 2017-01-04T12:01:45Z
2017-01-04T12:01:45Z
2015
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/94368
 
Language en
 
Relation Th;4511
 
Format application/pdf