【摘要】 在自然光照射条件下 ,研究了UV B辐射增强对小麦籽粒中可溶性糖、淀粉、赖氨酸、蛋白质等化学组分及其相互转化的影响 .结果表明 :增加 0 2 5W·m- 2 的UV B辐射使灌浆期的小麦籽粒中可溶性糖含量显著高于对照 ,淀粉含量变化幅度增大 ,赖氨酸含量下降速度较快 ,成熟期总蛋白质含量增加 .增加 0 75W·m- 2 的UV B辐射能降低成熟籽粒中可溶性糖和淀粉的含量 ,增加赖氨酸及总蛋白质的含量 .更多还原

【Abstract】 In the conditions of field and natural light,the effect of enhanced UV-B radiation on the chemical constituent and transformation of wheat seeds,such as soluble sugar,starch,lysine and protein have been investigated.The result indicates that UV-B radiation of 0.25W·m -2 incrases the content of soluble sugar,enhances the changes of starch and lysine;UV-B radiation of 0.75 W·m -2 reduces soluble sugar and starch content,increases the content of lysine and total protein.更多还原