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Submitted on: 15 September 2007.
Revised on: 07 November 2007.
Accepted on: 12 December 2007.
___________________AgroLife Scientific Journal---UNIV AGRONOMIC SCIENCES & VETERINARY MEDICINE BUCHAREST - USAMV
Submitted on: 03 October 2015.
Revised on: 11 January 2016.
Accepted on: 08 February 2016.
___________________AgroLife Scientific Journal---UNIV AGRONOMIC SCIENCES & VETERINARY MEDICINE BUCHAREST - USAMV
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Submitted on: 31 December 2012.
Revised on: 31 January 2013.
Accepted on: 11 March 2013.
___________________AgroLife Scientific Journal---UNIV AGRONOMIC SCIENCES & VETERINARY MEDICINE BUCHAREST - USAMV
Submitted on: 10 February 2005.
Revised on: 20 May 2005.
Accepted on: 09 July 2005.
___________________AgroLife Scientific Journal---UNIV AGRONOMIC SCIENCES & VETERINARY MEDICINE BUCHAREST - USAMV
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