【作者】 叶协锋； 刘国顺； 张晓远； 司辉； 王红锋；

【Author】 YE Xie-feng~1, LIU Guo-shun~1, ZHANG Xiao-yuan~2, SI Hui~3, WANG Hong-feng~4 (1. National Tobacco Cultivation and Physiological and Biochemical Research Centre of Henan Agriculture University, Zhengzhou 450002, China; 2. Quannan Tobacco Company of Jiangxi Province, Quannan, 341800, China;3.Wuhan Cigarette Factory, Wuhan ,430000, China;4.Shizhu tobacco company of Chongqing)

【机构】 河南农业大学国家烟草栽培生理生化研究基地； 江西省全南县烟草专卖局； 武汉烟草(集团)公司； 重庆市石柱县烟草公司；

【摘要】 采用盆栽试验研究了褐土区不同钾肥施用量对烤烟生长过程中几种酶活性的影响。结果表明,施用钾肥提高了烟株的NR活性和根系活力,增强了烟株生长前期叶片合成叶绿素的能力;钾素对SOD活性具有调节作用,在烟株生长的前期和中期有提高SOD活性的能力;栽后75d的蔗糖酶活性小于栽后60d的活性,施用钾肥对蔗糖酶活性有一定的提高,但是钾肥的不同用量处理之间差别不大;在烤烟生长中后期,随着烟株的生长发育,根系ATP酶活性是降低的,施用钾肥提高了根系ATP酶活性。更多还原

【Abstract】 Experiments in pot were carded out to study the effect of different potassium application rate on some enzymes activity during the course of the growth of Flue-cured tobacco in Cinnamon soil area. The NR activity and root activity are enhanced and the leaf ability of composing chlorophyll during the prophase of the growing process is increasing by using potassium fertilizer. Potassium can adjust the SOD activity and increase the SOD activity during the prophase and metaphase of the growing process. The invertase activity of 75 days after transplanting is lower than that of 60 days after transplanting. Using potassium fertilizer increases the invertase activity, but the difference among the different potassium application rate treatments is small. During the metaphase and anaphase of the growing process the ATPase activity of root is added by using potassium fertilizer, but the ATPase activity of root is reduced along with the growing of the plant.更多还原