Submitted on: 20 February 2013.
Revised on: 25 April 2013.
Accepted on: 11 May 2013.
___________________AFRICAN JOURNAL OF RANGE & FORAGE SCIENCE
Submitted on: 18 February 1999.
Revised on: 19 April 1999.
Accepted on: 13 June 1999.
___________________AFRICAN JOURNAL OF RANGE & FORAGE SCIENCE
Submitted on: 12 January 2014.
Revised on: 01 May 2014.
Accepted on: 26 June 2014.
___________________AFRICAN JOURNAL OF RANGE & FORAGE SCIENCE
http://reply.papertrans.cn/1/10/913/913-14.png
http://reply.papertrans.cn/1/10/913/913-15.png
http://reply.papertrans.cn/1/10/913/913-16.png
Submitted on: 18 January 2003.
Revised on: 13 May 2003.
Accepted on: 23 May 2003.
___________________AFRICAN JOURNAL OF RANGE & FORAGE SCIENCE
http://reply.papertrans.cn/1/10/913/913-18.png
Submitted on: 12 February 2009.
Revised on: 16 May 2009.
Accepted on: 07 July 2009.
___________________AFRICAN JOURNAL OF RANGE & FORAGE SCIENCE
Submitted on: 15 January 2001.
Revised on: 10 May 2001.
Accepted on: 05 June 2001.
___________________AFRICAN JOURNAL OF RANGE & FORAGE SCIENCE