Table of contents

1 BASIC RESEARCH IN PHOTOSYNTHESIS J. Y. Takemoto By doing what comes naturally (photosynthesizing) plants sustain themselves and provide non-plants with food and oxygen. To bring photosynthesis under direct human control, researchers ore experimenting with light-harvesting bacteria.

4 PESTICIDE PROGRAMS AT USU H. M. Deer Pesticides have become a standard ingredient in U.S. agriculture. Several programs at USU help to minimize possible hazards associated with their use.

8 GOATSRUE ERADICATION J. O. Evans The character of the weed such as dissemination, area of infestation and controllability at stages of growth presents the opportunity to eradicate it before it becomes a major problem.

12 CROWNVETCH L. M. Shultz Advertised as a versatile ground cover, Crownvetch has a darker side. It is an aggressive invader and may be toxic to livestock.

14 NEW GRAIN VARIETIES FOR UTAH R. S. Albrechtsen and W. G. Dewey Three new Utah grains, Ute, a short-strawed, hard red irrigated breadwheat. Wynne, a semi-dwarf high yielding spring wheat and Bracken, a spring barley, satisfy many grower needs.

22 LEGUMES FOR WILDLAND PLANTINGS M. D. Rumbaugh Diversity in rangeland vegetation has proved desirable, especially when it involves legumes. As more research is completed, the possible choices among legume species are being extended. The need is for wider on-site inclusion.

28 THE SODIC HAZARD IN COAL MINE OVERBURDEN C. Amrhein, A. Brown, and J. J. Jurinak Some disturbed lands must be reclaimed (treated with chemicals) before they can be revegetated. Researchers are looking for ways to accurately determine reclamation needs.