Variety trials

Overwinter Cauliflower Trials, 1982

This report deals with the continuation of a series of tests of overwinter cauliflower (Brassica oleracea L. var. botrytis) production which began in 1977. Previous research established the feasibility of overwinter cauliflower production in the Willamette Valley and centered on cultivar and planting date trials, and the effect of spring-applied N on yields. The 1980-81 experiments reported here included a cultivar trial and a planting date trial.

Overwinterd Onion Variety Trials, 1980-1982

The purpose of these experiments was to evaluate the performance of several onion (Allium cepa L.) cultivars in overwinter trials. The Willamette Valley appears to have a suitable climate for production of overwintered onions if bolting, disease, and weed control problems can be overcome. Previous experiments at the North Willamette Station have indicated that late August or early September planting dates are superior to later planting dates for maximum yields. With a June or July harvest, this might allow another crop on the onion ground both before planting and after harvest.

Green Bean Breeding and Evaluation (2009)

Report to the Oregon Processed Vegetable Commission

Jim Myers and Brian Yorgy

Objectives: Breed improved Bush Blue Lake green bean varieties with: a. White and gray mold resistance b. Improved plant architecture c. High economic yield d. Improved pod quality (including straightness, color, smoothness, texture, flavor and quality retention, and delayed seed size development) e. Tolerance to abiotic stresses. Improve seed quality of materials in the breeding program to provide greater resistance to mechanical injury and low germination.

In-Field Forcing of Rhubarb with Gibberellic Acid (1984)

Prices paid for rhubarb are usually highest at the beginning of the production season. Growers would benefit from an inexpensive and reliable method for forcing crowns into early production. Hot house forcing has been used but this practice is expensive and the field must be replanted. Clear plastic mulch has been used to force rhubarb in the field but mulch costs may exceed $200/acre and plastic removal and disposal are an additional expense.

Early Cabbage Variety Trial (1984)

Research report from OSU's North Willamette Agricultural Research and Extension Center

Delbert Hemphill and N. Mansour
OSU Dept of Horticulture, NWREC

The purpose of this trial was to evaluate several lines of cabbage for late spring or early summer harvest. This requires planting out in early spring and many varieties will bolt under these conditions. Since direct-seeding is often impractical in early spring and emergence would be slow and erratic, the lines were seeded in an unheated screenhouse and transplanted about six weeks later.


Overwinter Cauliflower Variety Trial Report (1984)

This trial is the fourth in a series of winter cauliflower variety trials dating from 1978. Previous trials have established that best quality is obtained with varieties that mature in April or May in average years. Very early varieties are less hardy, often fail to produce sufficiently large frames to support large heads, and may suffer frost damage to the curd. Several varieties maturing in late May and June have good yield potential but poor curd quality. This trial focused on mid-maturity varieties to determine those with the best combination of yield and quality.