Sakata Seed America Inc. 

American Takii, Inc.

Commercial Grower Resouces

University of California Agriculture and Natural Resources

University of California Vegetable Research and Information Center

Growing Produce Magazine

California Crop Improvement Association

California Seed Association

International Seed Federation

American Seed Trade Association

Government Agricultural Agencies

US Department of Agricultre

Department of Fish & Game

State Department Pesticide Regulation