In addition to the definitions set out in the Texas Agriculture Code, Chapter 19 (the Act), and in Chapter 21, Subchapter A of this title (relating to Citrus Quarantines) the following words and terms, when used in this subchapter, shall have the following meanings unless the context clearly indicates otherwise:

1. (1) Certified budwood--Budwood that has been tested for pathogens listed under §21.32 (a) of this title (relating to Establishment of the Foundation Grove).
2. (2) Certified citrus nursery tree--A citrus tree propagated by any vegetative means, germplasm or re-propagated from the same germplasm source. Propagation by vegetative means includes but is not limited to citrus propagated by budding, grafting, cuttings, and air-layering.
3. (3) Certified laboratory--A public or private laboratory authorized to perform tests for citrus pathogens.
4. (4) Increase Block--An area in which budwood from the foundation grove are budded or grafted onto rootstock to increase budwood production.
5. (5) Mandatory variety or mandatory--A variety of citrus tree that may be produced only directly from certified budwood obtained from an approved foundation grove.

Source Note:The provisions of this §21.30 adopted to be effective November 10, 1999, 24 TexReg 9828; amended to be effective July 16, 2003, 28 TexReg 5529; amended to be effective July 26, 2006, 31 TexReg 5800; amended to be effective June 29, 2010, 35 TexReg 5523.