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Articles by Praveen Pandey
Total Records ( 2 ) for Praveen Pandey
  Mritunjay Tripathi , Pratibha Singh , Praveen Pandey , Vankat R. Pandey and Harendra Singh
  This experiment has been conducted to study antioxidant activities and biochemical changes in round as well as long cultivars of brinjal. Results showed that maximum protein content, amino acids, important minerals (Ca, P, K) and crude fibres were recorded in Pusa Purple Round Pusa Purple Long. Maximum phenolic content of brinjal fruit in round varieties was obtained in Pusa Purple Round followed by Pant Rituraj and NDBH-1 (86.13 mg/100 g). Phenolic content was maximum in Pusa Purple Long followed by Pusa Kranti and NB-2 in long varieties and Pusa Purple Round in round varieties. A linear relation between the total phenolic content and DPPH activities of the extracts was observed. Antioxidant activity of brinjal fruit was noticed between (182.01-234.13 μg) in round varieties and (172.11-219.92 μg) in long varieties. Maximum antioxidant activity of brinjal fruit in round varieties was obtained in Punjab Bahar followed by Pusa Purple Round and NB-1. However in long varieties of brinjal fruit it was maximum in NDBH-2 followed by Pusa Purple Long and NB-1. While, lowest activity was recorded in round variety NDBH-1 and Pant Samrat in long variety. On the basis of biochemical investigation, it can be concluded that brinjal is very nutritive and useful vegetable because it is rich source of protein, minerals, crude fibre, phenolic content, antioxidant activity and important essential amino acids.
  S.N. Tripathi , Shailesh Marker , Praveen Pandey , K.K. Jaiswal and D.K. Tiwari
  The better way of exploiting genetic association with several traits having high heritability is to construct a selection index that combines information on all the characters which are having decisive role in influencing the yield. Therefore, an experiment consisting thirty wheat genotypes was grown in a randomized block design with three replications during Rabi 2007-08 to determine mutual relationship between various yield components in bread wheat. The mean performance of individual genotypes was employed for analysis of variance to test the significance for each character. The higher genotypic and phenotypic coefficients of variation were exhibited by harvest index, biological yield per plant, number of productive tillers per plant, test weight and grain yield per plant. The role of additive gene action was observed in the expression of the character like plant height, grain yield per plant, biological yield, harvest index and test weight. The correlation coefficient between grain yield per plant and other quantitative attributing to yield showed that grain yield was positively associated with plant height, spike length, number of grains per spike and test weight and biological yield. Path coefficient at genotypic level revealed biological yield had the highest direct positive effect on seed yield per plant followed by harvest index, days to maturity, test weight, spike length and number of productive tillers per plant, indicating these are the main contributors to yield.
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