Submitted on: 01 October 1998.
Revised on: 13 December 1998.
Accepted on: 01 February 1999.
___________________ACS Agricultural Science & Technology
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Submitted on: 18 July 1998.
Revised on: 08 November 1998.
Accepted on: 01 January 1999.
___________________ACS Agricultural Science & Technology
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Submitted on: 31 December 2012.
Revised on: 23 February 2013.
Accepted on: 30 March 2013.
___________________ACS Agricultural Science & Technology
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Submitted on: 06 October 2010.
Revised on: 14 November 2010.
Accepted on: 06 January 2011.
___________________ACS Agricultural Science & Technology
Submitted on: 04 November 2002.
Revised on: 06 December 2002.
Accepted on: 02 February 2003.
___________________ACS Agricultural Science & Technology