基金Supported by National Science and Technology Supporting Project(2007BAD45B07)Key Technology Research and Development Project of Hainan Province(080201,2009YFZX003)~~
基金funded by the graduate student fund of the South-West Agricultural Universityfund of Scientific and Technological Research Project of 2008 of Hainan Entry-Exit Inspection and Quarantine Bureau(Project No.HIKJ2007-14)~~