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DPPH scavenge capacity of grassland feed at the end of may, depending on fertilization, by PC&CA

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dc.contributor.author Harmanescu, Monica
dc.date.accessioned 2021-04-22T11:03:44Z
dc.date.available 2021-04-22T11:03:44Z
dc.date.issued 2017
dc.identifier.citation Harmanescu, Monica. 2017. "DPPH scavenge capacity of grassland feed at the end of may, depending on fertilization, by PC&CA". Lucrări Ştiinţifice USAMV - Iaşi Seria Agronomie 60(1): 257-262.
dc.identifier.uri https://repository.uaiasi.ro/xmlui/handle/20.500.12811/939
dc.description.abstract The main topic of this study was to use Principal Components & Classification Analysis (PC&CA) for statistic evaluations of DPPH scavenge capacity of perennial feed from hill grassland related to fertilization cases. It was harvested the plants at the end of May. StatSoft – STATISTICA, Version 10, performed PC&CA. DPPH values of perennial feed were included as supplementary variable in the PC&CA complex matrix. Active variables of the matrix were: soil humus, organic fertilization data with fermented sheep manure, mineral fertilization data based on nitrogen, the gravimetric distribution in grassland covering of Trifolium sp. (Tsp.%), Calamagrostis epigejos (Ce%), Festuca rupicola (Fr%), Inula britannica (Ib%), Filipendula vulgaris (Fv%). It was selected seven cases (with five replications): three fertilized organic, three mineral and one unfertilized. The correlation coefficient between Filipendula vulgaris (%) and DPPH scavenge capacity of perennial feed was 0.55. Calamagrostis epigejos (%) was influenced positively by the mineral nitrogen fertilization, correlation coefficient being 0.91, but this perennial plant did not increase the DPPH scavenge capacity of grassland feed (correlation coefficient was -0.47). Fermented sheep manure influenced positively the Trifolium sp. (%) in permanent grassland covering, correlation coefficient being 0.88, but it did not improve significantly the DPPH scavenge capacity of grassland feed in this period of the year (correlation coefficient was 0.01). PC&CA can represent a promising statistic tool for monitoring the DPPH scavenges capacity of perennial grassland forages as functional feed, depending on fertilization management. en_US
dc.language.iso en en_US
dc.publisher “Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi en_US
dc.subject multivariate analyses en_US
dc.subject grassland en_US
dc.subject scavenge capacity en_US
dc.subject perennial forage en_US
dc.subject functional feed en_US
dc.title DPPH scavenge capacity of grassland feed at the end of may, depending on fertilization, by PC&CA en_US
dc.type Article en_US
dc.author.affiliation Monica Harmanescu, Banat’s University of Agricultural Sciences and Veterinary Medicine, Timisoara
dc.publicationName Lucrări Ştiinţifice USAMV - Iaşi Seria Agronomie
dc.volume 60
dc.issue 1
dc.publicationDate 2017
dc.startingPage 257
dc.endingPage 262
dc.identifier.eissn 2069-6727


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