Submitted by Fatima Abedi on Tue, 29/09/2009 - 17:39
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Seed stocks (designated as AKM 2221 and BKM 2221, respectively) were obtained from Fort Hays Branch Experiment Station, Kansas State University,USA. The maintainer line was derived by crossing Tift 23DB with PI 185642. Tift 23DB is a maintainer line of Tift 23DA developed at Tifton in Georgia, USA. PI 185642 was collected in 1949 from a market in Kumasi, Ghana, and supplied by the Southern Region, Plant Introduction Experiment Station, Georgia, in 1971. AKM 2221 was derived by backcrossing the maintainer line four times into the cytoplasm of Tift 23DA with continuing pedigree selection. ICMA 3 and ICMB 3 were reselected for downy mildew resistance in the downy mildew nursery at ICRISAT Center following two generations of plant(A) x plant(B) crossing and pedigree selection. | ![]() |
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