IMPACT OF BIOFERTILIZERS ON NUTRIENT CONTENT AND ANTIOXIDANT ACTIVITY OF AMARANTHUS

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dc.contributor.advisorSUMATHI, S
dc.contributor.authorRAVI SHANTHI KUMARI, A
dc.date.accessioned2016-06-09T14:18:31Z
dc.date.available2016-06-09T14:18:31Z
dc.date.issued2011
dc.description.abstractAmaranth greens, are common leafy vegetables available throughout the tropics and in many warm temperate regions. It is remarkably rich in vitamin C, iron, calcium and folate. However, there is very little information on the use of biofertilizers and organic manures alone or in combination with chemical fertilizers on Amaranthus yield and quality. Thus this study is desgined to evaluate the impact of biofertilizers on nutrient content and antioxidant activity of Amaranthus. The experiment was conducted in complete randomized design with 12 treatments and three replications. Vermicompost, chemical fertilizers and biofertilizers were applied to the soil according to the treatments imposed. Amaranthus seeds were sown in poly bags with different treatments. The crop was harvested at 30 days (first picking), 45 days (second picking), 60 days (third picking) DAS. At each picking, yield was noted. Fresh leaf samples were used for estimation of vitamin C content and total carotene content. Dry powdered leaf samples were used for estimation of total antioxidant activity, total phenols and mineral content. The physico-chemical properties of soil and microbial population of soil was estimated before sowing and after harvesting of crop. The shelf life was assessed after harvesting at room temperature and refrigeration temperature. There were significant differences in yield, vitamin C content, carotene content, minerals, phenols and antioxidant activity of Amaranthus. Among treatments significantly higher yield was recorded with the application of 50% RDF+NBF+PSBF. Total dry weight differed significantly among the treatments at all stages. Higher total dry weight was recorded with the application of 50 % RDF+NBF+PSBF. The quality parameters viz., vitamin C content, carotene content, minerals, phenols and antioxidant activity were significantly higher with the application of 50% RDF+NBF+PSBF. The shelf life of Amaranthus was significantly better with the application of 50% RDF+NBF+PSBF and the lowest shelf life was recorded in 100% RDF. The results from this study demonstrated that yield and quality parameters will be improved by combined application of chemical fertilizers and biofertilizersen_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/67130
dc.language.isoenen_US
dc.publisherACHARYA N.G. RANGA AGRICULTURAL UNIVERSITYen_US
dc.relation.ispartofseriesD8848;
dc.subAgricultural Biotechnology
dc.subjectbiofertilizers, vermicomposting, fertilizers, azotobacter, yields, planting, bacteria, amaranthus, organic fertilizers, nitrogenen_US
dc.subjectAMARANTHUS, ANTIOXIDANT, BIOFERTILIZERSen_US
dc.these.typeM.Sc
dc.titleIMPACT OF BIOFERTILIZERS ON NUTRIENT CONTENT AND ANTIOXIDANT ACTIVITY OF AMARANTHUSen_US
dc.typeThesisen_US
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