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Life Sciences

Series

1979

Disease

Articles 1 - 4 of 4

Full-Text Articles in Education

G79-445 Soybean Variety Selection, Leroy V. Svec Jan 1979

G79-445 Soybean Variety Selection, Leroy V. Svec

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide has information on soybean characteristics that should be considered before selecting a variety to plant.

Soybean characteristics that need to be considered in making the selection of a variety to plant include maturity, yield potential, plant type, height, seed size, emergence score, lodging, shattering, and disease and insect resistance. Many years are required to develop a new variety from the time an initial cross of soybeans is made until the time seed is available on a widespread basis. The advance of a potential variety through the early generations may be accomplished with only a few seeds of the …


G79-471 Choosing Corn Hybrids, Lenis Alton Nelson Jan 1979

G79-471 Choosing Corn Hybrids, Lenis Alton Nelson

University of Nebraska-Lincoln Extension: Historical Materials

This publication explains what factors to consider and compare when selecting a corn hybrid and how to obtain recent hybrid test data. One of the most important decisions a corn producer makes is choosing the hybrid seed. Hundreds of hybrid names and numbers are advertised and offered for sale. Selecting the few that offer the greatest yield and profit potential requires time, effort, and study. This should be a continuous process for a corn grower because important information on new or established hybrids may be encountered at any time.


G79-429 Tan Spot Disease Of Wheat (Revised June 1993), John E. Watkins, Robert N. Klein, Eric D. Kerr Jan 1979

G79-429 Tan Spot Disease Of Wheat (Revised June 1993), John E. Watkins, Robert N. Klein, Eric D. Kerr

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide describes the development of tan spot disease in wheat and gives recommendations for controlling it by means of crop rotation, fungicides and good crop residue management.

Tan spot, caused by the fungus Pyrenophora tritici-repentis, is a major leafspot disease of winter wheat in the Great Plains of North America. It has become an increasing problem in wheat cropping systems using conservation tillage. Although tan spot can be a serious threat by itself, it more often occurs as a part of a foliar disease complex involving tan spot, leaf rust and Septoria leaf blotch. Usually tan spot symptoms …


G79-465 Urinary Calculi (Waterbelly) In Cattle And Sheep, Ivan G. Rush, Dale Grotelueschen Jan 1979

G79-465 Urinary Calculi (Waterbelly) In Cattle And Sheep, Ivan G. Rush, Dale Grotelueschen

University of Nebraska-Lincoln Extension: Historical Materials

This publication discusses the symptoms, management and treatment of various types of urinary calculi diseases in cattle and sheep.

The term "urinary calculi" refers to deposits in the urinary tract. These deposits may block the flow of urine, particularly in male cattle and sheep. Prolonged blockage generally results in rupture of the urinary bladder or urethra, releasing urine into the surrounding tissues. This produces the condition commonly referred to as "waterbelly."

Two types of urinary calculi, both mineral in nature, predominate in cattle and sheep: (1) the phosphatic type formed principally under feedlot conditions and (2) the siliceous type occurring …