Arkot 0912-18

Name	Arkot 0912-18
Alias	Ark0912-18 [view all 4]
GRIN ID	PI 697032
Type	Cultivar
Species	Gossypium hirsutum
Description	Arkot 0912-18 is a conventional cotton germplasm line with morphological traits similar to 'UA222' and 'UA48' (check cultivars), except Arkot 0912-18 has higher trichome density on abaxial leaves, stems and bract margins than UA222 and UA48. Lint yields of Arkot 0912-18 from replicated field tests at four sites in Arkansas over five years exceeded lint yields of UA222 and UA48 at each location. Over all locations, lint yields of Arkot 0912-18 were 13.8 and 24.3% greater than UA222 and UA48, respectively. Soils at all sites are silt loams, except the Sharkey clay at Keiser. Compared to UA222, Arkot 0912-18 produced higher lint fraction (40.8 vs. 40.2%), seed ha-1 (16635 x 1000 vs 15270 x 1000), lint index (7.9 vs. 7.7 g), plant height (105 vs. 100 cm), leaf pubescence rating (5.5 vs. 4.1 ), stem pubescence (6.3 vs. 5.6 rating), marginal bract trichome density (39.9 vs. 35.5 trichomes cm-1), fiber micronaire (4.68 vs. 4.54), fiber uniformity index (86.6 vs. 85.6%), fiber strength (340 vs. 323 kN m kg-1 ), and fiber elongation (7 .0 vs. 6.3% ); equal seed index (11.2 vs. 11.1 g), fiber density (146 vs. 149 fibers mm-2 of seed coat), open boll percentage (53 vs. 50%), quality score (58 vs. 56), and fiber length (31.5 vs. 31.2 mm); and lower fibers per seed (15940 vs. 16224) and short fiber content(6.0 vs. 6.7%). Arkot 0912-18 is resistance to all U.S. races of Xanthomonas citri ssp. malvacearum (ex Smith 1901) Schaad et al. 2007, the causal agent of bacterial blight. Damaged flowers for Arkot 0912-18 (50%) was lower than UA48 (55%) and susceptible check (74%) but higher than UA222 (42%) in tests of resistance to tarnished plant bug [Lygus lineolaris (Palisot de Beauvais)]. Lint yields at Judd Hill location (site of high Verticillium wilt) suggest that Arkot 0912-18 is more tolerant to Verticillium wilt [caused by Verticillium dahliae Kleb] than UA222 and UA48, but it expressed more Verticillium wilt leaf symptoms than either check cultivar.
Origin Country	United States
Origin Detail	Arkansas
Pedigree	UA222 (U.S. Patent no. 8,869,862) / UA48 (PVP 201100041)
Maternal Parent	UA 222
Paternal Parent	UA 48
Maternal Parent of	N/A
Paternal Parent of	N/A
Phenotypic Data	[view all 208]
SSR Genotype Data	N/A
SNP Genotype Data	N/A
Map	N/A
DNA Library	N/A
Sequence	N/A
Comments	N/A
Reference	Bourland FM, Jones DC. Registration of two Arkot 0912 sister cotton germplasm lines. Journal of Plant Registrations. 2022 Jan 1; 16(1):80-86.

Synonym
Ark0912-18
Ark 0912-18
GP-1098
PI 697032

Year	Publication
2022	Bourland FM, Jones DC. Registration of two Arkot 0912 sister cotton germplasm lines. Journal of Plant Registrations. 2022 Jan 1; 16(1):80-86.

Database	Accession
GRIN	PI 697032