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Code of Federal Regulations Title 7. Agriculture § 7.201.56–11 Knotweed family, Polygonaceae

Current as of October 02, 2022 | Updated by FindLaw Staff

Kinds of seed:  Buckwheat, rhubarb, and sorrel.

(a) General description.

(1) Germination habit:  Epigeal dicot.

(2) Food reserves:  Cotyledons, starchy endosperm.

(3) Shoot system:  The hypocotyl elongates carrying the cotyledons above the soil surface. The epicotyl usually does not show any development within the test period.

(4) Root system:  A primary root, with secondary roots developing within the test period for some kinds.

(b) Abnormal seedling description.

(1) Cotyledons:

(i) Less than half of the original cotyledon tissue remaining attached.

(ii) Less than half of the original cotyledon tissue free of necrosis or decay.

(2) Epicotyl:

(i) Missing. (May be assumed to be present if cotyledons are intact.)

(ii) [Reserved]

(3) Hypocotyl:

(i) Deep open cracks or grainy lesions extending into the conducting tissue.

(ii) Malformed, such as markedly shortened, curled, or thickened.

(iii) Watery.

(4) Root:

(i) None.

(ii) Weak, stubby, or missing primary root with weak secondary or adventitious roots.

(5) Seedling:

(i) One or more essential structures impaired as a result of decay from primary infection.

(ii) Albino.

1  Includes matters within the responsibility of the Federal Grain Inspection Service.
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Cite this article: FindLaw.com - Code of Federal Regulations Title 7. Agriculture § 7.201.56–11 Knotweed family, Polygonaceae - last updated October 02, 2022 | https://codes.findlaw.com/cfr/title-7-agriculture/cfr-sect-7-201-56-11/

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