Affiliation:
1. University of Arkansas Division of Agriculture Northeast Research and Extension Center Keiser Arkansas 72351 USA
2. Cotton Incorporated, 6399 Weston Parkway Cary North Carolina 27513 USA
Abstract
AbstractArkot 1102ne (Reg. no. GP‐1142; PI 702558) is a conventional, nectariless cotton (Gossypium hirsutum L.) germplasm line released by the Arkansas Agricultural Experiment Station in October 2022. The germplasm line represents an ongoing effort to develop improved genotypes with enhanced yield, yield components, seed traits, earliness, host plant resistance, and fiber properties. Arkot 1102ne was compared to ‘UA48’ and ‘UA222’ over 5 years and four test sites in Arkansas. Across all the test sites, lint yields of Arkot 1102ne were 7.9% and 20.8% higher than those of UA222 and UA48, respectively, due to its higher lint percentage, seed per area, and fiber density. Arkot 1102ne produced the highest average yield of 21 genotypes over 10 locations in the 2019 Regional Breeders’ Network Test (RBTN). Arkot 1102ne produced the highest oil and protein percentages at four 2019 RBTN locations where seed were evaluated. Host plant resistance traits that have been measured on Arkot 1102ne include bacterial blight resistance and Verticillium wilt tolerance. Leaf pubescence and bract trichome density of Arkot 1102ne were intermediate between UA48 and UA222, but stem pubescence was lower. This combination of host plant resistance and yield components should lead to more stable yield production over contrasting environments. The fiber quality of Arkot 1102ne was lower than UA48 and was similar to that of UA222.
Funder
Cotton Incorporated
Arkansas Agricultural Experiment Station
Subject
Genetics,Agronomy and Crop Science
Reference31 articles.
1. Analysis of Cotton Yield Stability Across Population Densities
2. Bird L. S. &Blank L. M.(1951).Breeding strains of cotton resistant to bacterial blight(Bulletin no. 736).Texas Agricultural Experimental Station.
3. Bourland F. Beach A. Brown E. Kennedy C. Martin L. &Robertson B.(2022).Arkansas cotton variety test 2021(Research Series no. 683).Arkansas Agricultural Experiment Station.
4. Bourland F. Jones D. &Bridges W.(2016).Perspectives on boll sampling. InProceedings of the Beltwide Cotton Production Research Conferences(pp.819–826).National Cotton Council of America.
5. Bourland F. Studebaker G. &Teague T. G.(2014).Host plant resistance to tarnished plant bugs in Arkansas: I. Variation among cotton genotypes in small plots. InProceedings of the Beltwide Cotton Production Research Conferences(pp.668–678).National Cotton Council of America.