草业学报2011，Vol.20Issue(4)：236-243,8.
甘肃省干旱灌区连作马铃薯根际土壤中镰刀菌的变化
Changes of Fusarium in rhizosphere soil under potato continuous cropping systems in arid-irrigated area of Gansu Province
摘要
Abstract
For a thorough understanding of the relationships between the distribution of Fusarium in rhizo-sphere soil and potato continuous cropping systems, the changes of Fusarium in rhizosphere soil under potato continuous cropping and rotation cropping were studied by way of root debris separation using the cultivar Atlantic. There were 8 species of Fusarium from rhizosphere soils of different rotations. F. Proliferatum was the dominant species of corn-potato rotation systems with a separation frequency up to 23. 34 %, but in rhizosphere soils of potato continuously cropped for 1 - 3 years, F. Solani was the dominant species with separation frequencies up to 30. 78%, 37. 70% and 45. A8%. With long term continuous cropping of potato, the total amount of Fusarium tended to increase but there were changes in the different Fusarium species. The amounts of F. Solani and F. Oxysporum increased while the amounts of F. Culmorum and F. Proliferatum decreased, and the amount of F. Equesiti did not changed.关键词
镰刀菌/马铃薯/连作Key words
Fusarium/ potato/ continuous cropping分类
农业科技引用本文复制引用
牛秀群,李金花,张俊莲,沈宝云,柴兆祥,王蒂..甘肃省干旱灌区连作马铃薯根际土壤中镰刀菌的变化[J].草业学报,2011,20(4):236-243,8.基金项目
科技支撑计划(2006BAD218053),农业部马铃薯产业技术体系(gwzj-19)和农业部行业专项(nyhyzx07-006-3)资助. （2006BAD218053）
