Managing Bitterweed to Reduce Sheep Losses.

2 p

Managing Bitterweed to Reduce Sheep Losses.

2 p

Responses of Species in Kalsow Prairie, Iowa, to an April Fire

Selected prairie species were observed during the first growing season following a prescribed burn on Kalsow Prairie, a mesic tall grass prairie in central Iowa. Changes in dry weight, vegetative cover, and flowering response were measured on burned, unburned and mowed areas. Significant changes were recorded for many species following the burn ranging from a flowering response of prairie dropseed (Sporobolus heterolepis) on burned areas 30 times that on unburned areas to a slight reduction in flowering of bluegrass (Poa pratensis) on burned areas

A Handy Field Herbarium for Identification of Plant Species

A procedure is described for preparation of plant specimens for field use with transparent, self-adhering material

Distribution Patterns of Eastern Red-Cedar Juniperus virginiana L. in Henry County, Iowa

The distribution patterns of Eastern red-cedar were studied in Henry County, Iowa, in a general survey and also in three intensive study areas in Marion, Jackson, and Wayne townships. It was found that the abundant seed sources of red-cedar and the predominantly rolling land in Henry County make extensive establishment of red-cedars possible. In the northern tier of townships red-cedars are restricted to fence lines and roadsides whereas in the hilly southern three tiers of townships they are much more abundant

Managing Bitterweed to Reduce Sheep Losses.

2 p

Comparison of Near-Infrared Spectroscopy Measured Muscle Metabolism with Predicted Whole-Body Metabolism

poste

Establishing the Reproducibility of Mitochondrial Capacity using Near-Infrared Spectroscopy

poste

Aerobic Capacity Independently Predicts Central Augmentation Index Among Apparently Healthy Adults

poste

Ecotypic Differentiation in Response to Photoperiodism in Several Species of Amaranthus

Amaranthus retroflexus, A. hybridus and A. powellii were grown in a uniform garden at Ames from seed collected over a wide geographic area. Intraspecific variability in flowering response to photoperiod was studied. There was a significant correlation between date of flowering and the collection site