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Theses

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200912
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Subject: Microbiology × End date: 2009 × Start date: 2009 × Thesis Type: M.Sc ×
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Now showing 1 - 9 of 12
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    ThesisItemOpen Access
    SELECTION AND CHARACTERIZATION OF PGPR FROM RHIZOSPHERE OF CAPSICUM (CAPSICUM ANNUUM L.)
    (DR. YASHWNAT SINGH PARMAR UNIVERSITY OF HORTICULTURE AND FORESTRY NAUNI SOLAN, 2009) MANDYAL, PRIYANKA; KAUSHAL, RAJESH
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    ThesisItemOpen Access
    SELECTION AND CHARACTERIZATION OF ENDOPHYTIC AND RHIZOSPHERIC MICROORGANISMS OF CHRYSANTHEMUM (DENDRANTHEMA GRANDIFLORA TZVELVE)
    (DR. YASHWNAT SINGH PARMAR UNIVERSITY OF HORTICULTURE AND FORESTRY NAUNI SOLAN, 2009) SHARMA, KHUSHBOO; KAUSHAL, RAJESH
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    ThesisItemOpen Access
    EFFECT ON GROWTH OF PEA SEEDLINGS BY PHOSPHATE SOLUBILIZING RHIZOBIUM LEGUMINOSARUM
    (DR. YASHWNAT SINGH PARMAR UNIVERSITY OF HORTICULTURE AND FORESTRY NAUNI SOLAN, 2009) AHLUWALIA, NEHA; SHIRKOT, C. K.
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    ThesisItemOpen Access
    PRODUCTION AND PROPERTIES OF ALKALINE XYLANASE BY BACILLUS MACERANAS IN SOILD STATE FERMENTATION OF APPLE POMACE
    (DR. YASHWNAT SINGH PARMAR UNIVERSITY OF HORTICULTURE AND FORESTRY NAUNI SOLAN, 2009) SHARMA, VINAYAK; SHIRKOT, C. K.
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    ThesisItemOpen Access
    PHOSPHATE SOLUBILIZING POTENTIAL OF PLANT GROWTH PROMOTING RHIZOBACTERIA (PGPR) ISOLATED FROM TOMATO SEEDLINGS
    (DR. YASHWNAT SINGH PARMAR UNIVERSITY OF HORTICULTURE AND FORESTRY NAUNI SOLAN, 2009) SHARMA, NIPUN; SHIRKOT, C. K.
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    ThesisItemOpen Access
    EVALUATION OF CARRIERS AND METHODS OF APPLICATION FOR PLANT GRWOTH PROMOTING RHIZOBACTERIAL (PGPR) INOCULANTS ON APPLE
    (DR. YASHWNAT SINGH PARMAR UNIVERSITY OF HORTICULTURE AND FORESTRY NAUNI SOLAN, 2009) THAKURM SANGEETA; KAUSHAL, RAJESH
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    ThesisItemOpen Access
    IDENTIFICATION AND CHARACTERIZATION OF TECHNIQUES TO IDENTIFY AND TO STUDY PLANT BENEFICIAL PSEUDOMONAS SPECIES
    (DR. YASHWNAT SINGH PARMAR UNIVERSITY OF HORTICULTURE AND FORESTRY NAUNI SOLAN, 2009) BHADORIA, SMITA; KAUR, MOHINDER
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    ThesisItemOpen Access
    EVALUATION OF CARRIERS AND METHODS OF APPLICATION FOR PLANT GROWTH PROMOTING RHIZOBACTERIAL (PGPR) INOCULANTS ON APPLE
    (2009) THAKUR, SANGEETA; KAUSHAL, RAJESH
    ABSTRACT The present investigations entitled “Evaluation of carriers and methods of application for plant growth promoting rhizobacterial (PGPR) inoculants on apple” was carried out during 2007-2009. An attempt was made to evaluate different carrier materials,viz. charcoal,peat,talc powder, vermicompost and vermiculite and to standardize the methods of application of carrier based / liquid formulation of Bacillus megaterium on apple under net house conditions .The relationship of optical density with viable cell counts and quantity of inoculum with carrier material was established. The viable counts decrease with increase in storage period irrespective of carrier materials. Charcoal was found to be best carrier material to retain maximum number of viable cells after 180 days of storage. The effect of liquid shake culture prepared in nutrient broth was more effective compared to water based rest culture. The inoculation of carrier based formulation excels to register their effects on seed germination and other plant growth parameters over liquid (rest /shake) formulation. The application of charcoal based inoculum in sterilized vermicompost has not only significantly influenced seed germination, shoot length, root length, leaf size and number of leaves, but also improved the available nitrogen and phosphorus content of the soil. These findings clearly reveal that charcoal is the best carrier material to retain long shelf life of Bacillus megaterium and the application of charcoal based inoculum with sterilized vermicompost is the best method to produce healthy seedlings of apple.
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    ThesisItemOpen Access
    EFFECT ON GROWTH OF PEA SEEDLINGS BY PHOSPHATE SOLUBILIZING Rhizobium leguminosarum
    (2009) AHLUWALIA, NEHA; SHIRKOT, C.K.
    ABSTRACT Rhizobium leguminosarum isolated originally isolated from root nodules of pea was tested for its ability to solubilize tricalcium phosphate (TCP). This strain showed solubilization on Pikovaskaya’s agar medium with 1.38 solubilization index and solubilized a substancial amount of TCP 785 mg/ml in PVK broth. Among the carbon sources, mannitol was found to be best carbon source with yeast extract as bets nitrogen source showing maximum P-solubilization 787.00 mg/l and 797.30 mg/l and % growth inhibition 41.10 and 40.12 percent against Fusarium oxysporum. While 28 ºC temperature, 7.5 pH, 72 h incubation period and 0.5 % TCP concentration were found to be best for the growth and P-solubilization by Rhizobium leguminosarum in yeast extract mannitiol broth. Concurrent production of IAA, siderophore, antifungal activity along with phosphorus solubilization revealed its plant growth promoting potential. Seed treatment with charcoal based culture of Rhizobium leguminosarum with TCP amendment increased the germination percent of pea seeds under growth chamber as well as in net house conditions. Among different TCP concentration 262 mg/ 2 Kg of soil showed maximum shoot length, root length, shoot dry weight and root dry weight. Thus the ability of per forming multifarious activities in tandem suggesting Rhizobium leguminosarum a novel strain for plant growth promotion and has significance to develop cost effective ecofriendly sustainable system in the management of environmental and agriculture problems.