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Filtering by: Creator Mellenthin, Walter M., 1920- Decade 1980-1989

Pollination and commercial varieties of pears in oregon

Creator:

Stebbins, Robert L., Mellenthin, Walter M., 1920-, Lombard, P. B. (Porter B.), and Oregon State University. Extension Service

Abstract:

Why be concerned about pollination? While most varieties of pear will set some fruit without cross pollination, usually they will set more and better fruit with it. Cross pollination means the transfer of pollen from the anthers of flowers of one variety to the stigma of flowers of another.

Resource Type:

Technical Report
Fluoride investigations at the Mid-Columbia Experiment Station, 1961-1979

Creator:

Facteau, Timothy Joseph, 1940-, Rowe, Kenneth Eugene, 1934-, and Mellenthin, Walter M., 1920-

Abstract:

Fruit set of sweet cherries was reduced if sprays containing fluoride (sodium or ammonium fluoride or hydrofluoric acid) were applied during anthesis. Sprays applied at other times during the fruit-growing season caused fruit and leaf symptoms, depending on the concentration of fluoride, but no reductions in fruit set. Symptoms of...

Resource Type:

Technical Report