8 Colo. Code Regs. § 1203-6, pt. 11

Current through Register Vol. 48, No. 1, January 10, 2025

Part 11 - ANALYSIS AND TESTING OF SEEDS

11.1. The methods of analyzing and testing seed samples shall be the same as prescribed in the Association of Official Seed Analysts Rules for Testing Seeds (October 2019) (as to incorporation of materials see Part 14), except that:

a) Kinds of seeds that do not have germination testing protocols in the Association of Official Seed Analysts Rules for Testing Seeds (October 2019) may be tested with a tetrazolium test in place of a germination test; and

b) Notwithstanding the fact that such protocols exist for Indian ricegrass (Achnatherum hymenoides), fourwing saltbrush (Atriplex canescens), and chokecherry (Prunus virginiana), these kinds of seeds may also be tested with a tetrazolium test in place of a germination test.

11.2. Except as provided in Rule 11.3 below, a standard germination test is valid for thirteen (13) months, unless the seed is stored in a hermetically sealed container, in which case it shall be valid for twenty-four (24) months.

11.3 Germination tests for seeds of the following kinds of cool season lawn and turf grasses shall be valid for sixteen (16) months, unless hermitically sealed: colonial bentgrass, creeping bentgrass, Kentucky bluegrass, chewings fescue, hard fescue, red fescue, tall fescue, annual ryegrass, intermediate ryegrass, and perennial ryegrass. If the seed is stored in a hermitically sealed container the test shall be valid for twenty-four (24) months.

11.4 The time for which a tetrazolium test is valid in place of a germination test shall be thirteen (13) months, unless the seed is stored in a hermetically sealed container, in which case it shall be valid for twenty-four (24) months.

8 CCR 1203-6, pt. 11

42 CR 13, July 10, 2019, effective 7/30/2019

43 CR 05, March 10, 2020, effective 3/30/2020

43 CR 19, October 10, 2020, effective 10/30/2020