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Registration of 34 Sorghum Germplasm Lines Resistant to Acetolactate Synthase–Inhibitor Herbicides
Author(s) -
Tesso Tesfaye T.,
Kershner Kellan,
Ochanda Newton,
Al-Khatib Kasim,
Tuinstra Mitchell R.
Publication year - 2011
Publication title -
journal of plant registrations
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.316
H-Index - 21
eISSN - 1940-3496
pISSN - 1936-5209
DOI - 10.3198/jpr2010.03.0184crg
Subject(s) - germplasm , acetolactate synthase , biology , backcrossing , sorghum , hybrid , cytoplasmic male sterility , sorghum bicolor , herbicide resistance , agronomy , plant breeding , breeding program , cultivar , microbiology and biotechnology , genetics , gene , weed control
Sorghum [ Sorghum bicolor (L.) Moench] germplasm lines designated KS201 through KS234 (Reg. No. GP‐684, PI 659520 to Reg. No. GP‐717, PI 659553) were developed and released by the Kansas Agricultural Experiment Station, Manhattan, KS in 2007. The donor of the herbicide resistance gene, Tailwind, was crossed to adapted‐seed and pollinator‐parent lines. The progenies were treated with the target herbicide, and resistant individuals were repeatedly backcrossed to the adapted parents. Backcrossing was performed until the undesirable wild characteristics from the donor parent were eliminated. Lines KS201 through KS218 are R lines and restore fertility in A1 cytoplasm system; lines KS219 through KS234 are B lines and do not restore fertility in A1 cytoplasm. All lines possess a unique genetic resistance to acetolactate synthase (ALS)–inhibitor herbicide families and are useful breeding materials for the development of commercial hybrids with ALS resistance. The lines are all of combine‐harvester height and reach 50% flowering 60 to 82 d after planting at Manhattan, KS. A majority of the lines are pigmented plant types and have variable grain color and seed sizes within the range common to existing public inbreds.