Registration of Five Upland Cotton Mutant Germplasm Lines with Superior Fiber Length, Strength, and Uniformity

被引:3
|
作者
Bechere, Efrem [1 ]
Zeng, Linghe [1 ]
Auld, Dick [2 ]
机构
[1] ARS, USDA, Crop Genet Res Unit, Stoneville, MS 38776 USA
[2] Texas Tech Univ, Lubbock, TX 79409 USA
关键词
QUALITY; POPULATION; YIELD;
D O I
10.3198/jpr2017.05.0024crg
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Mutant germplasm lines MD 15-Mut 13 (Reg. No. GP-1025, P1 681706), MD 15-Mut 31 (Reg. No. GP-1026, P1681707), MD 15-Mut 61 (Reg. No. GP-1027, PI 681708), MD 15-Mut 89 (Reg. No. GP-1028, PI 681709), and MD 15-Mut 138 (Reg. No. GP-1029, PI 681710) are unique genotypes of upland cotton (Gossypium hirsutum L.). These germplasm lines were developed by the USDA-ARS, Stoneville, MS, and released on 18 Apr. 2017. In 2008, about 5000 seeds of the germplasm line MD 15 were chemically mutagenized with 3.2% (v/v) of ethyl methane sulfonate. The treated seeds were hand planted in the field in 2008 to produce the M-0 generation One boll was hand-picked from each of 2000 surviving plants, and this bulk was planted in 2009 to produce the M-1. In 2010, 2011, and 2012, the same procedure was followed to produce the M-2, M-3, and M-4 generations, respectively. Individual progeny rows of the best fiber quality mutants, along with the check genotypes, were tested in replicated trials at Stoneville during 2013 to 2016. These tests identified five mutants designated as MD 15-Mut 13, MD 15-Mut 31, MD 15-Mut 61, MD 15-Mut 89 and MD 15-Mut 138 with outstanding fiber length, strength, and uniformity. These mutants have long to extra-long, very strong, and highly uniform fibers.
引用
收藏
页码:107 / 111
页数:5
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