欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2009, Vol. 25 ›› Issue (14): 118-121.

所属专题： 生物技术； 水稻

• 农学 农业基础科学 • 上一篇    下一篇

免耕对水稻根系生长及根际环境的影响——Ⅱ免耕对水稻根系保护酶活性的影响

周佳民,徐世宏,江立庚   

  • 收稿日期:2009-04-16 修回日期:2009-03-24 出版日期:2009-07-20 发布日期:2009-07-20

Influence of no tillage on root growth and rhizosphere environment in rice ⅡInfluence of no tillage on activities of antioxidant enzymes in root

Zhou Jiamin, Xun Shihong,,, Jiang Ligeng   

  • Received:2009-04-16 Revised:2009-03-24 Online:2009-07-20 Published:2009-07-20

PDF (PC)

598

摘要： 以金优253为材料进行盆栽试验，比较水稻在免耕、常耕、分根栽培三种栽培条件下水稻根系保护性酶活性的差异。结果表明，免耕栽培水稻根系或分根栽培中免耕侧根系的SOD、CAT、POD酶活性在拔节期比常耕栽培水稻根系或分根栽培中常耕侧根系活性低，其MDA含量较高。相反，免耕栽培水稻根系或分根栽培中免耕侧根系的SOD、CAT、POD酶活性在灌浆期比常耕栽培水稻根系或分根栽培中常耕侧根系活性高，其MDA含量较低。因此，免耕栽培水稻根系后期衰老较常耕栽培水稻根系慢。

关键词: 芦荟黑斑病, 芦荟黑斑病, 病原菌, 发生规律, 杀菌剂

Abstract: Pot experiments were conducted in the early and late seasons of 2007 to compare the differences of activities of antioxidant enzymes in rice root under no tillage, conventional tillage and root separating cultivation conditions. Results showed that activities of SOD, CAT and POD in the root of no tillage rice or no tillage side in separating cultivation were lower that in root of conventional rice root or in root of conventional side in separating cultivation at elongation stage, while their contents of MDA were higher. However, this trend was exactly opposite. It can be concluded that, compared with conventional tillage rice, no tillage rice was provided with the characteristic of slower root senescence at later growth period.