INTRODUCTION Root developittent ill gr: issland has been sht1 (lied ianv Xyetars. A survey
of the underground plant parts in the Palouse Prairie of southeastern Washington was naide …

Knowledge of the soil as a medium for the growth of roots has increased very greatly in the
past three decades. Earlier studies on the root depth and distribution of native Midwestern …

Plants other than grasses constitute an important part of the native grasslands of North
America. M\4ost of these are forbs, a few are shrubs and half-shrubs. Probably 85 to 90 …

The perennial nature of the grass crop makes it essential to appreciate the influence of
environment and management upon the development of its underground plant organs as …

Data on the depth and spread of 31 species of trees and shrubs were collected at Fargo,
North Dakota. The average rainfall in this area is 22.34", but for the past 15 years it has been …

METHODS The methods used in this study were the same as those followed by Weaver and
his co-workers. The earth from around the roots was carefully and painstakingly removed by …

1. A typical square meter of vegetation was selected in the upland, Andropogon scoparius
prairie on Lancaster loam soil, near Lincoln, Nebraska, and another in the lowland, A …

A close relationship was found between root depth of most prairie grasses and resistance to
drying. Among the forbs, resistance to drought was closely correlated with root extent …

METHODS All of the material included in the present study was obtained at timberline on the
east slope of the Medicine Bow Range of the Rocky Mountains, Wyoming, between June 16 …

This study includes:(1) an investigation of environmental differences which affect plant
growth in the foothill, montane, and alpine belts of Rocky Mountain National Park; and (2) a …