Two methods of separating sugars and acids of Bartlett pears
were compared to decide upon a working method for later studies
involving identification and quantitation of sugars and acids during
ripening of pears and in the production and storage of pear concentrate.
The first method involved precipitation of acids with...
The influence of evaporative cooling for delay of 'Bartlett' and
'Bosc' fruit bud development for frost avoidance was investigated.
Two mist systems, one in a mature pear orchard and the other in a
young pear hedgerow, delayed 'Bartlett' and 'Bosc' bloom up to 15 and
8 days respectively. A low...
The purpose of the present study has been the specification
and measurement of the characteristics of the intraseasonal demand
for fresh Bartlett pears. In particular, the study has focused
attention on a particular producing area, the Rogue River Valley
of Oregon.
The intraseasonal analysis for fresh Bartlett pears was
performed...
Published March 1980. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
The principal objective of this study was to identify
and investigate the underlying basis for variations in the
volumes of exports of U.S. winter pears during the 1947 to
1974 period. A number of factors thought to be of importance
in the determination of the volume of exports of a...
Published March 1978. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Various aspects of the biology of the woolly pear aphid
Eriosoma pyricola were studied in order to further understand its annual
cycle. It was already known that. E. pyricola produces alate sexuparae
in response to the onset of dormancy in its secondary host, a pear.
This study of E. pyricola...