1Jorge Fernandez-Cornejo.The seed in- dustry in U.S. agriculture: An explo- ration of date and information on crop seed markets, regulation, industry structure, and research and develop- ment [ M] .Resouwe Economics Di- vision, Economic Research Service, U.S. Department of Agriculture. Agri- culture Information Bulletin No.AIB786, February, 2004: 7-8. 被引量：1
3Piet Schenkelaars, Huib de Vriend, Nicholas Kalaitzandonakes.Drivers of consolidation in the seed industry and its consequences for innovation [ M ] . commissioned by COGEM, 2011, 123: 16. 被引量：1
4Michael L Morris.Maize seed industry in developing countries [ M] Lynne Rienner Publishers, 1998. 被引量：1
5Armstrong J.1994, the role of certified seed in the twenty-first century, pre- sented at the 1994 annual meeting of the Association of Official Seed Certifying Agencies, Fort Mitchell, Kentuchy. 被引量：1
6Robert Tripp.Seed provisions and a- gricuhural development: the institu- tions of rural change [ M] .ODI, 2001, 182: 25. 被引量：1
7I Robert Tripp.Supporting integrated se- ed systems: Institutions, Organiza- tions and Regulations. 被引量：1
