Section 3033.4 - Inspection and Testing Procedures; Eligibility of Stock; Refusal, Suspension or Cancellation of Registration(a) Generally. Inspection and testing procedures prescribed in this article may be made by the University of California and the Department, and shall be conducted in an approved manner at times determined as suitable by the Department. In the testing procedures required in this section, the Department may approve the substitution of other indicator plants if equally suitable or may approve indexing on a fewer number of indicator plants, if the plant being tested is itself a good indicator for the sunblotch viroid or may approve other procedures for testing if determined equally suitable. Additional inspections or tests other than provided in this section may be required by the Department if any of these conditions exist: seasonal conditions or other factors tend to obscure the sunblotch viroid symptoms or make adequate inspection impossible; sunblotch viroid infection is suspected; sunblotch viroid symptoms may be masked in a particular variety.(b) Eligibility of Stock. (1) Candidate Tree. Each candidate tree shall be assigned an in-test identification number and shall be either: (A) indexed for sunblotch viroid in an approved greenhouse facility under the supervision of the University of California and the Department. Each index test shall include indexing for sunblotch viroid by inoculating a minimum of 12 Guatemalan or West Indian variety avocado seedlings grown from registered foundation stock and graft-inoculated with tissue from the candidate tree. The inoculated seedlings shall be observed for a period of at least two years, except where results show a candidate tree is infected with sunblotch viroid. If no evidence of sunblotch viroid is found, the candidate tree may be registered as a foundation stock tree. or,
(B) tested using the approved Polymerase Chain Reaction (PCR) developed to identify the sunblotch viroid. This test shall be performed by the University of California. Testing shall done in accordance with procedures developed by R. J. Schnell in 1997 as amended by J. A. Dodds in 1997. These procedures are available from the department upon request. If no evidence of sunblotch viroid is found, the candidate tree may be registered as a foundation stock tree.
(2) Foundation Stock Tree. Candidate trees found to be free of sunblotch viroid following testing may be registered for use as primary sources of stock for the production of registered seed and scion materials. Registration is for a two-year period beginning with the start of the testing of the candidate tree. The in-test identification number of each candidate tree will become the tree registration number unless registration is refused or canceled as hereinafter provided.(3) Increase Block. Trees propagated using foundation stock seed and budwood shall be acceptable for planting in an increase block. Propagative material from an increase block may be planted in the same increase block to replace plants or increase its size or to establish other increase blocks.(A) The Department will assign a registration block number to each applicant's increase block upon receipt of an acceptable application and the proper fees.(B) Registration of increase block trees shall be for a period of two years from June 30 in the calendar year in which the registration was issued.(C) Registration of an increase block may be continuous provided application is filed with the Department prior to the expiration date of the original registration.(4) Registered Nursery Tree. Nursery trees shall be propagated using registered seed and scionwood. (A) Seed and budwood collection shall be done in a manner approved by the Department.(B) The Department, upon receipt and acceptance of an application and fees for a registered nursery planting, will assign a registration number to the nursery planting block.(C) Registration of a nursery planting shall be for a period of two years from June 30 in the calendar year in which the registration was issued.(c) Refusal, Suspension or Cancellation of Registration. Registration may be refused, suspended, or canceled for any planting or portion thereof when:(1) The requirements of this article have not been met, or(2) The plant or plantings are found to be sunblotch viroid infected or off-type, or(3) A registered tree is found sunblotch viroid infected and it is determined that plants propagated from it also are liable to be infected, or(4) For any reason the identity of a plant or planting becomes uncertain or has not been properly maintained, or(5) A registration number is misused or misrepresented.Cal. Code Regs. Tit. 3, § 3033.4
1. Amendment filed 10-24-75; effective thirtieth day thereafter (Register 75, No. 43).
2. Renumbering of former Section 3033.4 to Section 3033.5 and renumbering and amendment of former Section 3033.3 to Section 3033.4 filed 12-30-83; effective thirtieth day thereafter (Register 84, No. 1). For prior history, see Register 77, No. 31.
3. Amendment filed 4-4-2002; operative 5-4-2002 (Register 2002, No. 14). Note: Authority cited: Sections 407 and 5823, Food and Agricultural Code. Reference: Section 5821, Food and Agricultural Code.
1. Amendment filed 10-24-75; effective thirtieth day thereafter (Register 75, No. 43).
2. Renumbering of former Section 3033.4 to Section 3033.5 and renumbering and amendment of former Section 3033.3 to Section 3033.4 filed 12-30-83; effective thirtieth day thereafter (Register 84, No. 1). For prior history, see Register 77, No. 31.
3. Amendment filed 4-4-2002; operative 5-4-2002 (Register 2002, No. 14).