ICAR Research Data Repository for Knowledge Management
Integrated management of major diseases of lentil
KrishiKosh
View Archive Info| Field | Value | |
| Title |
Integrated management of major diseases of lentil
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| Creator |
Vijay Kumar
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| Contributor |
Tripathi, H.S.
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| Subject |
integrated control, lentils, seedborne fungi, Fusarium oxysporum, Uromyces viciae-fabae, foliar application, fungal diseases, biological control, wilts
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| Description |
Thesis-PhD
Lentil wilt caused by Fusarium oxysporum f.sp. lentis is an important soil-borne disease of lentil, and caused by (Uromyces viciae-fabae (Pers.) de Bary) is an another important foliar disease both are destructive resulting heavy yield losses. The present investigation was undertaken to develop suitable management strategies through chemical control, bioagents, oils, animal products, organic amendments, biofertilizer, Rhizobium strains and host resistance with a view to formulate an integrated approach against the wilt and rust diseases under field conditions. In vitro and in vivo studies of fungicides against wilt bayleton proved the best fungicide. Six plant oils evaluated in in vitro and in vivo condition, menthol oil proved the best oil followed by geranium oil and citronella oil while jatropha oil was least effective. The fungal antagonistic Trichoderma harziamum tested against F. oxysporum f.sp. lentis in dual culture, the growth of antagonist over lapped the mycelium of the test pathogen after 72 hrs when both were incubated simultaneously. In vivo condition Trichoderma harzianum + Pseudomonas fluorescens showed lowest disease incidence and maximum grain yield followed by P. fluorescens and T. harzianum. Among the animal products cow dung was found to be highly effective in reducing the wilt incidence and cow milk was least effective. Soil application of organic amendments FYM was highly effective while disease incidence was maximum in spent compost. Out of eight fungicides evaluated in vitro and in vivo against rust, bayleton was found most effective and saaf was least effective. Among the six oils evaluated under in vitro and in vivo condition neem oil was found highly effective and citronella was least effective. Four animal products evaluated in vitro and in vivo condition cow dung was found most effective and cow milk was least effective among all the animal products. Among the three biocontrol agents on the severity of rust under field condition indicated that minimum disease severity and maximum grain yield was recorded with Trichoderma harzianum + Pseudomonas flouorescens and followed by P. fluorescens and T. harzianum. Treatment of biomaterials (FYM, vermicompost) resulted minimum disease severity and height grain yield, respectively, while spent compost was least effective. Rhizobium strain LR-35-B-01 resulted minimum disease (wilt incidence and rust severity) and maximum grain yield and DL-1 resulted minimum grain yield. Biofertilzer + 20 kg N/ha + 2% urea spray resulted minimum disease and maximum grain yield while 20 kg N/ha resulted minimum grain yield and maximum disease was found. Effect of PGPR strains against wilt and rust of lentil Rhizobium + PUK-17-1 resulted in minimum disease and maximum grain yield and Rhizobium + CRB-2 was least effective. Available line of lentil were evaluated L-4147, L 4688, L 4691, L 4583, VL-133, RLG 73, IPL-315 and HUL-57 showed resistance D ³ 5. Under field condition, seed treatment with Baylton + P. fluorescens was found most effective while cow ghee + mustard oil was least effective. Two prophylactic sprays of Bayleton + P. fluorescens were found most effective followed by mancozeb + P. fluorescnes and captaf + T. harzianum while cow ghee + mustard oil was least effective. |
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| Date |
2016-09-21T11:03:59Z
2016-09-21T11:03:59Z 2009-07 |
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| Type |
Thesis
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| Identifier |
http://krishikosh.egranth.ac.in/handle/1/77950
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| Language |
en
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| Format |
application/pdf
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| Publisher |
G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
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