1FAO. The Second Report on the State of World' s Plant Genetic Resources for Food and Agriculture[ EB/OL]. (2010-10-01) [2011-06-01 ]. http://www, tsoshop, co. uk/bookstore, asp? FO = 1159999&DI =628378.
2FAO. International treaty on plant genetic resources for food and agriculture [EB/OL]. (2009-10-01) [2011 -06 -01]. http ://www. planttreaty, org/.