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2017 - 20192
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Author: Anjali × End date: 2019 ×
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    Comparison of shelf life and bioefficacy of liquid and charcoal based biofertilizer in chickpea
    (Punjab Agricultural University, Ludhiana, 2019) Anjali; Sharma, Poonam
    The present investigation was carried out to compare the shelf life and bioefficacy of liquid and charcoal based biofertilizers of LGR33+RB1 amended with different additives viz. 0.1% CMC, 2% PVP and 10mM trehalose stored at 4⁰ and 28⁰C upto 300 days in chickpea. Viable cell count as well as plant growth promoting (PGP) traits viz. IAA production, P solubilization and siderophore production were obtained at an interval of 30 days and results revealed that all liquid based biofertilizer treatments with additives recorded significantly high viable population, IAA production and P solubilisation during the entire study period (300 days) at 4⁰ and 28⁰C as compared to charcoal based biofertilizer treatments. However, among different additives amendment with 0.1% CMC showed maximum viable population and PGP traits in both liquid as well as charcoal based biofertilizers. In vitro seed germination experiment was conducted to evaluate the effect of liquid and charcoal based biofertilizer amended with different additives on growth parameters in chickpea. Liquid biofertilizer treatment LGR33+RB1+0.1% CMC recorded significantly high plumule length (12.5cm), radical length (5.8cm), fresh weight and dry weight of seedling (0.72 and 0.68 g, respectively) along with improved seed survival rate of inoculants on chickpea seeds upto 48 hrs (8.27log cfu/ml). In vivo studies all liquid as well as charcoal based biofertilizer treatments with additives improved growth parameters in chickpea as compared to recommended consortium treatment without additives. Liquid biofertilizer treatment LGR33+RB1+0.1% CMC recorded maximum seed emergence, plant height, chlorophyll content, number of nodules, dry weight of nodules as well as leghaemoglobin content, soil enzyme activity, total N and P content of shoot and soil along with improvement in grain yield over uninoculated control.
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    ThesisItemOpen Access
    Effect of magnetic field on the solubility and pH of sodium chloride in distilled water
    (Punjab Agricultural University, Ludhiana, 2017) Anjali; Paramjeet Singh
    The water passed through magnetic field is known as magnetized water and it has been claimed that the magnetic water change the physical, chemical and microbiological properties. The influence of magnetic field on water is to change the dimension of the cluster, which affects the physical properties of water. Magnetic water has very useful effects in agriculture such as on germination of seeds, pH of soil, increase in yield, plant length and crop productivity. Magnetic water has different properties and action than ordinary water. The main purpose of the present study is to investigate whether or not magnetic water treatment changes the electrical conductivity, TDS and pH of NaCl solution. During the experiment, NaCl solution was exposed to different exposure of magnetic field strength and change in electrical conductivity, total dissolved salts (TDS) and pH of NaCl solution before and after the effect of magnetic field strength was compared. In the present study, the physical parameters like electrical conductivity and total dissolved salts of NaCl solution increases with more exposure of time (3hrs, 5 hrs and 7 hrs) at magnetic field strength (0.05T-0.25T). pH of the NaCl solution increases with magnetic field strength but for 3 hours is more and for 7 hours is less. Statistical analysis of data with SPPS software version 20.0 changes values for TDS, electrical conductivity and pH of NaCl solution. Analysis with regression coefficient and ANOVA at 5% level of significant (p < 0.05) has been tested.