Phenolic compounds are known to have biological activity with beneficial effects on human health. Fruit of cultivated tomatoes (Solanum lycopersicum L.) are a major source of phenolics in the U.S. diet because this crop is the second most consumed vegetable per capita, but actual levels are low compared to other...
Sclerotinia sclerotiorum (Lib.) de Bary is a necrotrophic pathogen capable of causing white mold, a severe disease in common bean. White mold is of particular concern to the Oregon snap bean processing industry, where processors allow less than
3% incidence in harvested shipments. Breeding for white mold resistance in beans...
Soil moisture and temperature regimes during spring-summer 1996 were evaluated
in plots with compaction and organic residues treatments established in 1993 at three sites
in the Sierra National Forest after forest harvesting. The results indicate that the bare
condition (non-compacted soil with total removal of the harvesting residues and forest...
The purpose of this research was to develop tools and germplasm for the production of tomatoes (Solanum lycopersicum L.) with high fruit phenolics without the use of genetic engineering. A candidate gene analysis was undertaken to identify genes regulating anthocyanin biosynthesis in tomato fruit (Aft, Abg, atv, and Purple Smudge)....
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James R. Myers
The purpose of this research was to develop tools and germplasm for the
Effects of three mulches of tree foliage and twigs (red alder, Douglas-fir, and
salal) and homogenized, partially decomposed material (forest floor) on soil macronutrients
(Ca, K, Mg, P, NO3, and NH4) were evaluated in the summer of 1997. These
effects were measured with buried, coated ion-exchange resin bags at two...
The optimum goal of forest management is to foster long-term productivity and ecological integrity while maintaining or increasing short-term growth and yield through sustainable practices. Understory vegetation plays a definite role in forest functions through nutrient cycling and habitat provisions. The objective of this study was to determine how salal,...
A methodology for estimating streamf low characteristics on Ungaged
streams was developed for northwestern Oregon. Basin area and
basin area multiplied by the square root of relief were found to be
effective independent variables in regression models for estimating
the average annual flow, the average daily flood with a two-year...
Interspecific hybridization was initiated between wild P. acutifolius accession G40199 and P. vulgaris to introgress resistance to Acanthoscelides obtectus (bean seed weevil). F1 interspecific hybrids were recovered by embryo rescue and maintained until flowering. Mostly sterile hybrids were backcrossed twice to common bean cultivar ICA Pijao to recover sufficient fertility...
White mold, caused by Sclerotinia sclerotiorum (Lib.) De Bary, is a destructive yield-limiting disease of common bean (Phaseolus vulgaris L.). Genetic resistance to this pathogen is limited in common bean. Identification of high levels of partial physiological resistance in a genetically cross compatible species, Phaseolus coccineus, is advisable. The objectives...
Small-scale fisheries account for at least 40 percent of global fisheries catch, 90 percent of the people employed along capture fisheries value chains operate in small-scale fisheries, and 45 million women participate in small-scale fisheries globally. The past few years have brought warnings from policymakers and resource managers about risks...
During four cruises in July and September of 2008 and 2009, the shipboard X-band radar was tuned to detect the modulated bands of surface roughness caused by converging and diverging currents associated with high-frequency nonlinear internal wave (NLIW) packets. The data collected was used to quantify the propagation direction (ϴp),...
Development of marine heat waves (MHWs) in the Chile-Peru Current System (CPCS) is influenced by multiple physical processes at the air-sea interface whose individual role in these destructive events is difficult to infer. We identified MHW events from sea surface temperature (SST) anomalies from time periods of extreme ocean warming...
The temperature-dependent development of pupae and adults of strawberry root weevil (SRW) Otiorhynchus ovatus (L.) was studied in strawberry (Fragaria x ananassa Duch. var. 'Totem'). The development of pupae and adults was investigated at constant temperatures from 3-33°C at 3°C intervals. Major emphasis was on the development of a weighted...
Leafhoppers (Homoptera: Cicadellidae) were surveyed in Western Oregon vineyards in 1999. Four sites were sampled for leafhoppers using a sticky trap method, and 29 vineyards were sampled for leafhoppers using a sweep net method in the summer of 1999. The sticky trap and sweep net methods were chosen based on...
The forest products industry often uses intermediate-support cable logging systems to transport logs from the harvest site to a staging area. A method is presented to assist in the analysis and design of these cable systems. The method determines tensions in individual cables, forces on and stresses in the support...
A new male sterile (MS) mutant was found in 1988 in an inbred
line of cucumber (Cucumis sativus L.) in the greenhouse of
Sunseeds Company. The mutant is characterized by normal
corolla in both male and female flowers, normal fertility in
the female, and absence of pollen in otherwise normal-appearing...
A concern which has restricted the use of parthenocarpic pickling cucumbers in the
United States has been firmness of fruit processed by brining. Fruit firmness and defects
of parthenocarpic and nonparthenocarpic pickling cucumbers were evaluated in 1992 and
1993. Fruits were produced with or without pollination by growing plants with...
Gynoecious inbred lines of cucumbers (Cucumis sativus
L.) with high (HF), medium (MF) and low (LF) percentage of
gynoecious plants were used in crosses with monoecious
Chinese cultivars with high (HN), medium (MN) and low (LN)
percentage of nodes with female flowers. F₁ and F₂ progenies
from these parents crossed...