Evaluation of Grey System Theory on Progency of Sorghum Seed Induced in High Space

The seeds of Tanghui 28 which is a sorghum restorer line were carried by recoverable satellite launched by our country in 1996 The recovered seeds were sowed in experimental field, and more variation of inducing progency were observed The uniform of SP 3 generation was close stable, some good lines were obtained from it These good lines were evaluated by grey system theory model, some lines with excellent comprehensive characters were finally chosen By this method, a large quantative of work will be reduced when these lines heterosis and combing ability being tested next step