摘要
以油桃品种"中油桃8号"为试材,设置0(CK)、15(T1)、30(T2)μW/cm2 3个辐射强度,在露地和盆栽条件下研究了UV-B增强下油桃叶片光合特性和抗氧化酶活性的变化。结果表明:2个处理叶片的净光合速率显著降低,但低辐射处理T1的叶绿素含量显著提高。各处理的SOD活性较对照显著提高,分别增加22.71%、23.80%;CAT活性随UV-B辐射强度的增强,表现出先上升后降低的趋势;T2处理的POD活性显著高于对照。2个处理的MDA含量均显著增加。
With Prunus persica nectarina ’Zhongyoutao No.8’ as test material,by using 3 treatment（CK,T1：supplemental UV-B 15 μW·cm-2,T2：supplemental UV-B 30 μW·cm-2）,the effects of enhanced UV-B radiation on photosynthesis and antioxidase activity of nectarine were investigated under the field condition of pot cultivation.The results showed that Pn of different treatments decreased significantly,but chlorophyll content of T1 increased.Compared to CK,SOD activities of T1 and T2 were higher by 22.71% and 23.80%.With UV-B intensity enhanced,CAT activities increased first and decreased then.However,POD activities of T2 were higher.MDA content of the treatments was significantly raised.
出处
《北方园艺》
CAS
北大核心
2012年第11期27-29,共3页
Northern Horticulture
作者简介
第一作者简介：张良英（1981-），女，硕士，讲师，现主要从事园艺植物生理生态研究工作。E-maiL：zhang!．iangying_123@163．com。
责任作者：刘林（1980-），男，博士，副教授，现主要从事果树生理研究工作。E-mail：Liuxlin54@sina．com。
