【摘 要】
：
以早稻广陆矮(Oryza sativa L.)四号为材料,分析了水稻干种子在0、20、40、60KR(千伦)~(60)Co-γ射线的辐照下,幼苗的酯酶和过氧化物酶同工酶的变化,并观察其在盆栽条件下的
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以早稻广陆矮(Oryza sativa L.)四号为材料,分析了水稻干种子在0、20、40、60KR(千伦)~(60)Co-γ射线的辐照下,幼苗的酯酶和过氧化物酶同工酶的变化,并观察其在盆栽条件下的生物学性状的差异。结果表明,随着辐射剂量的加大,酯酶和过氧化物酶的酶谱条带数呈现出规律性的变化,其生物学性状亦有着相应的表现。生育期随剂量增高而推迟;株高、实粒数、千粒重及每株平均产量均与辐照剂量成负相关,空壳率则正好相反。通过同工酶的变化与外部性状表现关系的分析,可能对加强辐射育种选择的预见性有所帮助。
Taking the Oryza sativa L. No.4 as material, the effects of 0, 20, 40, 60KR (a thousand) ~ (60) Co-γ rays on the esterase And peroxidase isoenzyme changes, and observe the differences in the biological characteristics under potting conditions. The results showed that with the increase of radiation dose, the enzyme bands of esterase and peroxidase showed regular changes, and their biological characteristics also showed corresponding performance. The growth period was postponed with dose increasing. The plant height, grain number, 1000-grain weight and average yield of each plant were negatively correlated with the irradiation dose, while the shell percentage was the opposite. An analysis of the relationship between changes in isoenzyme and external traits may be helpful in predicting the choice of radiation breeding.
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