WAC 16-462-015   Definitions.  The definitions in this section apply throughout this chapter unless the context clearly requires otherwise:

     "Certified grape planting stock" means vines, rooted cuttings, cuttings or grafted plants taken or propagated directly from foundation vines or registered vines in compliance with the provisions of this chapter.

     "Department" means the department of agriculture of the state of Washington.

     "Director" means the director of the department of agriculture or the director's designee.

     "Foundation block" means a planting of grapevines established, operated and maintained by Washington State University, or other sources approved in writing by the director, that are indexed and found free from viruses designated in this chapter and that are not off-type.

     "Index" means testing for virus infection by making a graft with tissue from the plant being tested to an indicator plant, or by any other testing method approved by the department.

     "Indicator plant" means any herbaceous or woody plant used to index or determine virus infection.

     "Mother vine" means a grapevine used as a source for propagation material.

     "Off-type" means appearing under visual examination to be different from the variety listed on the application for registration and certification, or exhibiting symptoms of a genetic or nontransmissible disorder.

     "Registered block" means a planting of registered grapevines maintained by a nursery and used as a source of propagation material for certified grapevines.

     "Registered vine" means any vine propagated from a foundation block approved by the director, identified to a single vine source, and registered with the Washington state department of agriculture, in compliance with provisions of this chapter.

     "Tissue culture" means aseptically removing a vegetative shoot tip from growth arising from a dormant cutting from a foundation plant or from green growth (i.e., softwood) from a foundation plant during the growing season and aseptically transferring this shoot tip to a suitable vessel containing an appropriate culture medium.

     "Virus-like" means a graft-transmissible disorder with symptoms resembling a characterized virus disease, including, but not limited to, disorders caused by viroids and phytoplasmas.



[Statutory Authority: Chapters 15.14 and 34.05 RCW. 11-01-092, § 16-462-015, filed 12/15/10, effective 1/15/11; 06-19-009, § 16-462-015, filed 9/8/06, effective 10/9/06. Statutory Authority: Chapter 15.14 RCW. 02-11-100, § 16-462-015, filed 5/20/02, effective 6/20/02; 99-12-025, § 16-462-015, filed 5/25/99, effective 6/25/99; 86-08-078 (Order 1883), § 16-462-015, filed 4/2/86; 78-10-072 (Order 1583), § 16-462-015, filed 9/27/78; Order 1397, § 16-462-015, filed 4/7/75; Order 1193, § 16-462-015, filed 4/19/71; Order 1084, § 16-462-015, filed 4/2/68.]