Pepó, PálErdei, Éva2021-06-282021-06-282007-11-15Acta Agraria Debreceniensis, No. 27 (2007) , 49-542416-1640https://hdl.handle.net/2437/316622Due to climatic barriers, the genetic variability of Sorghum varieties decreases away from the gene centre, therefore hybrids cultivated in Hungary are restricted to a relatively limited genetic basis. This limited genetic basis results in a lower rate of genetic improvement, so the genetic basis of cytoplasm factors are to be extended. We enhanced the diversity of primary materials by fast neutron treatment. As a result of this treatment we detected sterile, deformed specimens with double panicles in the stock treated with a dose of 12.5 Gy in the M 1 generation. Agronomically useful specimens were found in the stock treated with 10 Gy and 7.5 Gy doses, where the leaf area index (LAI) and Harvest- index gave higher values than those of the control group. In the stock treated with 5 Gy dose, variations were less significant. In the reseeded M 2 generation we detected albino specimens with extreme chlorophyll defects in the 10 Gy Zádor stock.application/pdfSorghum bicolor L.mutational improvementfast neutronfolyóiratcikkOpen Accesshttps://doi.org/10.34101/actaagrar/27/3102Acta Agraria Debreceniensis27Acta agrar. Debr.