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Creator:: Gallardo-Ramirez, Mirian
Abstract:: 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...
Resource Type:: Masters Thesis
Full Text:: sprout elongation 23 Experiment 2.- Interaction of 2,4-D and BAP on potato plantlet growth in vitro 25

Creator:: Thompson, Delila M.
Abstract:: 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...
Resource Type:: Masters Thesis
Full Text:: be thought of as the relative readiness of the tuber for sprout initiation and plant growth. The

Creator:: Whitworth, Jonathan L.
Abstract:: 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...
Resource Type:: Masters Thesis
Full Text:: roll, spindling sprout, and mosiac. Undoubtedly, these diseases contributed to differences and

Creator:: Mead, Richard M.
Resource Type:: Masters Thesis
Full Text:: into a form more adequate for sprout growth. Potassium, the dominant cation entering the developing

Creator:: Whitworth, Jonathan L.
Abstract:: 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...
Resource Type:: Dissertation
Full Text:: (A) healthy eye; (B) PLRV-infected sprout on a seed piece. Each blot is a core of an eye cut and

Creator:: Thompson, Joyce Ann
Abstract:: 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...
Resource Type:: Masters Thesis
Full Text:: numbers of buds or eyes on seed tubers may increase sprout survival, numbers of stems per plant, and

Creator:: Brunick, Robert L.
Abstract:: These studies compared giant hill strains of Russet Norkotah and Umatilla Russet to the parent varieties. Selections were initially based on late maturity and increased vine vigor. Subsequent evaluations emphasized yield and quality parameters in comparison to the parent varieties. Giant hills were collected from the Columbia Basin and Central...
Resource Type:: Masters Thesis
Full Text:: to sprout. Ehlenfeldt and Boe (1989) and Barichello et a1., (1990) found that higher respiration

Creator:: Hane, Dan C.
Abstract:: Virus contamination in a potato breeding program can seriously disrupt the variety development process. Experiments were conducted from 1989 through 1993 to: evaluate the extent to which Potato Leafroll Virus (PLRV) and Potato Virus Y (PVY) can invade a breeding program, determine viral spread within hills and within individual tubers,...
Resource Type:: Dissertation

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