Germination and early growth of slickspot peppergrass (Lepidium papilli ferum) as affected by desert soil humic acids

摘要：

Slickspot peppergrass (Lepidium papilli ferum) is a reported.rare ephemeral endemic plant growing in the Southwest Idaho high desert, USA (Meyers et al 2005), whose seeds can remain dormant for several years.In 1999 this plant was listed as a species with.high threat magnitude, and.imminent immediacy of threat, under the Endangered Species Act. The name of the plant derives from its association with slickspots, which are small, crusted‐or smooth‐surfaced depressions in the soil that collect water within the regions sagebrush‐steppe ecosystem,and form a unique microhabitat in western US basins such as the Idaho Snake River plain (Moseley 1994).The objective of this study was to evaluate the effects of soil humic acids on the germination and early growth of slickspot peppergrass.

关键词： slickspot peppergrass soil humic acids effects on germination effects on early growth

作者: E.Loffredo A.J.Palazzo N.Senesi C.E.Clapp

作者单位: DIBCA.,University of Bari,70126-Bari,Italy ERDC-CRREL,Hanover,NH 03755-1290,USA USDA-ARS and University of Minnesota,St.Paul,MN 55108,USA

会议类型: 国际会议

会议名称: 2008世界草地与草原大会

会议地点: 呼和浩特

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）