The semi-arid dryland wheat-producing areas of the Pacific Northwest are characterized by cool, moist winters and dry, hot summers. The amount of annual precipitation is generally quite variable and inadequate for annual cropping. Where soil depth is adequate, the predominant loessal soils generally supply sufficient moisture for small grain production...
Giant hills may be classified as semi-giant, giant, or super-giant
depending on the degree of the variation. All are large,
vigorous, profusely flowering plants with characteristically poor
tuber shape, although some giant hills may have smooth tubers.
Thirteen of the fifteen Russet Burbank giant hill selections grown
in Con/all is,...
Four experiments were conducted to evaluate the effects of
growth-promoting treatments on potato sprouts and plantlets grown in
vitro, and to determine the relationships between growth rate and
eradication of PVX and PVS through shoot-tip culture.
The approach consisted of exposing plant material to potential
growth-regulating treatments, selecting the more...
During physiological ageing of seed potatoes, the stored tuber
undergoes certain biochemical changes which cause the breaking of
dormancy and the initiation of bud growth. The ageing process can
be manipulated through storage temperature and duration. Higher
temperatures usually accelerate seed tuber ageing. In order to
define the process of...
Experiments were conducted to determine: (1) effects of pretransplant
stolon formation on performance of potato transplants in
the field and greenhouse; (2) effects of parent plant nodal position
on productivity of rooted nodal cuttings; and (3) relationships
between photoperiod and stolon formation.
The effects of early stolon formation on Russet...
Twenty Russet Burbank seed lots were collected from
four states and one Canadian Province in 1988 and planted in
replicated trails at Powell Butte and Hermiston, Oregon as
part of a two year study to quantify clonal differences in
the cultivar. Samples of each seed lot were concurrently
increased and...
Potato leafroll virus (PLRV) causes yield and quality losses in
potato. PLRV is identified by plant symptoms and serological tests
such as an enzyme-linked immunosorbent assay (ELISA). A similar
serological test, direct tissue blotting assay (DTBA), was used to
detect and monitor PLRV movement in field-inoculated Russet Burbank
plants and...