Co^(60)-γ射线不同剂量辐射黑稻M1代性状研究

Research on the M1 Character of Different Dosage Co^(60-γ) Radiation Treated Black Rice

黑稻(Y4)经Co60-γ射线不同剂量辐射M1代性状初步研究表明,生物性状比对照弱,随着辐照剂量的增大而明显下降,主要表现为生物损伤。而半致死剂量,半损伤剂量,临界剂量和处理表现优良等综合考虑,以300GY出现的频率最高。千粒重,株高,穗长等表现优良的可以标定M2代单独研究。

Irradiating the black rice（Y4） with different dosage Co^60-γ ray the M1 character were studied. The experiment indicated that the biological character weaker of M 1 than that of control reached, along with increase of irradiation dosage, the M1 character are strongly decreased, especially the biological damage. According to all aspects of synthesis considered, such as the 50% lethal dose, the 50% damage dose, the critical dose and the fine performance, the frequency which 300GY appears is highest. The M2 Sequentially study which fine performance of 1000 -grain weight, plant height and panicle length.