Agricultural Marketing Service, USDA § 201.56–7

(C) Split extending into the (B) Stubby primary root with weak hypocotyl. secondary roots. (v) Seedling: (v) Seedling: (A) One or more essential structures (A) One or more essential structures impaired as a result of decay from pri- impaired as a result of decay from primary infection. mary infection. (B) Albino. (B) Albino. [59 FR 64503, Dec. 14, 1994, as amended at 65 (b) Chives, leek, onion, Welsh onion. FR 1708, Jan. 11, 2000] (1) General description. (i) Germination habit: Epigeal § 201.56–7 Lily family, Liliaceae. monocot. Kinds of seed: Asparagus, chives, (ii) Food reserves: Endosperm which leek, onion, and Welsh onion. is hard, semi-transparent, and non- (a) Asparagus. starchy; minor reserves in the coty- (1) General description. ledon. (i) Germination habit: Hypogeal (iii) Cotyledon: A single cylindrical monocot. cotyledon. The cotyledon emerges with (ii) Food reserves: Endosperm which the seed coat and endosperm attached is hard, semi- transparent, and non- to the tip. A sharp bend known as the starchy; minor reserves in the coty- ‘‘knee’’ forms; continued elongation of ledon. The endosperm surrounds the the cotyledon on each side of this knee entire embryo. pushes it above the soil surface. The (iii) Cotyledon: A single cylindrical cotyledon tip is pulled from the soil cotyledon; following germination, all and straightens except for a slight but the basal end remains embedded in kink which remains at the site of the the endosperm to absorb nutrients. knee. (iv) Shoot system: The epicotyl elon- (iv) Shoot system: The first foliage gates and carries the terminal bud leaf emerges through a slit near the above the soil surface. The epicotyl base of the cotyledon, but this does not may bear several small scale leaves. A usually occur during the test period. short hypocotyl is barely distinguish- The hypocotyl is a very short transi- able, joining the root to the basal end tional zone between the primary root of the cotyledon. More than one shoot and the cotyledon, and is not distin- may arise simultaneously, and the guishable for purposes of seedling eval- seedling may be considered normal if uation. at least one shoot is well- developed (v) Root system: A long slender pri- and has a terminal growing point, pro- mary root with adventitious roots de- vided other essential structures are veloping from the hypocotyl. The pri- normal. mary root does not develop secondary (v) Root system: A long slender pri- roots. mary root. (2) Abnormal seedling description. (2) Abnormal seedling description. (i) Cotyledon: (i) Cotyledon: (A) Short and thick. (A) Detached from seedling. (B) Without a definite bend or (B) Deep open cracks at basal end. ‘‘knee’’. (ii) Epicotyl: (C) Spindly or watery. (A) Missing. (B) Terminal bud missing or dam- (ii) Epicotyl: aged. (A) Not observed during the test pe- (C) Deep open cracks. riod. (D) Malformed, such as markedly (B) [Reserved] shortened, curled, or thickened. (iii) Hypocotyl: (E) Spindly. (A) Not evaluated. (F) Watery. (B) [Reserved] (iii) Hypocotyl: (iv) Root: (A) Deep open cracks. (A) No primary root. (B) [Reserved] (B) Short, weak, or stubby primary (iv) Root: root. (A) No primary root. (v) Seedling:

357

VerDate Sep<11>2014 17:10 Feb 10, 2016 Jkt 238014 PO 00000 Frm 00367 Fmt 8010 Sfmt 8010 Q:\07\7V3.TXT 31 lpowell on DSK54DXVN1OFR with $$_JOB § 201.56–8 7 CFR Ch. I (1–1–16 Edition)

(A) One or more essential structures and become thin, leaf-like, and photo- impaired as a result of decay from pri- synthetic. mary infection. (3) Shoot system: The hypocotyl (B) Albino. elongates carrying the cotyledons above the soil surface. The epicotyl [59 FR 64504, Dec. 14, 1994] usually does not show any development § 201.56–8 Flax family, Linaceae. within the test period. Areas of yellowish pigmentation may develop on Kind of seed: Flax. the hypocotyl in cotton. (a) General description. (4) Root system: A primary root, with (1) Germination habit: Epigeal dicot. secondary roots usually developing (Due to the mucilaginous nature of the within the test period. Areas of yel- seed coat, seedlings germinated on lowish pigmentation may develop on blotters may adhere to the blotter and the root in cotton. appear to be negatively geotropic.) (b) Abnormal seedling description. (2) Food reserves: Cotyledons which (1) Cotyledons: expand and become photosynthetic. (i) Less than half of the original cot- (3) Shoot system: The hypocotyl yledon tissue remaining attached. elongates carrying the cotyledons (ii) Less than half of the original cot- above the soil surface. The epicotyl yledon tissue free of necrosis or decay. usually does not show any development (Remove any attached seed coats at within the test period. the end of the test period for evalua- (4) Root system: A primary root, with tion of cotyledons.) secondary roots usually developing (2) Epicotyl: within the test period. (i) Missing. (May be assumed to be (b) Abnormal seedling description. present if both cotyledons are intact.) (1) Cotyledons: (ii) [Reserved] (i) Less than half of the original cot- (3) Hypocotyl: yledon tissue remaining attached. (i) Deep open cracks or grainy lesions (ii) Less than half of the original cot- extending into the conducting tissue. yledon tissue free of necrosis or decay. (ii) Malformed, such as markedly (2) Epicotyl: shortened, curled, or thickened. (i) Missing. (May be assumed to be (4) Root: present if cotyledons are intact.) (i) None. (ii) [Reserved] (ii) Weak, stubby, or missing primary (3) Hypocotyl: root with weak secondary or adven- (i) Deep open cracks extending into titious roots. the conducting tissue. (5) Seedling: (ii) Malformed, such as markedly (i) One or more essential structures shortened, curled, or thickened. impaired as a result of decay from pri- (4) Root: mary infection. (A cotton seedling with (i) None. yellowish areas on the root or (ii) Weak, stubby, or missing primary hypocotyl is classified as normal, pro- root with weak secondary or adven- vided the cotyledons are free of infec- titious roots. tion.) (5) Seedling: (ii) Albino. (i) One or more essential structures impaired as a result of decay from pri- [59 FR 64505 Dec. 14, 1994] mary infection. § 201.56–10 Spurge family, (ii) Albino. Euphorbiaceae. [59 FR 64505 Dec. 14, 1994] Kind of seed: Castorbean. (a) General description. § 201.56–9 Mallow family, Malvaceae. (1) Germination habit: Epigeal dicot. Kinds of seed: Cotton, kenaf, and (2) Food reserves: Cotyledons, which okra. are thin and leaf-like; endosperm (a) General description. (fleshy food-storage organs) usually (1) Germination habit: Epigeal dicot. persisting in the laboratory test. (2) Food reserve: Cotyledons, which (3) Shoot system: The hypocotyl are convoluted in the seed; they expand lengthens, carrying the cotyledons,

358

VerDate Sep<11>2014 17:10 Feb 10, 2016 Jkt 238014 PO 00000 Frm 00368 Fmt 8010 Sfmt 8010 Q:\07\7V3.TXT 31 lpowell on DSK54DXVN1OFR with $$_JOB