Variety trials

Planting Dates and Rate of Nitrogen on Cauliflower

In an attempt to confirm results obtained in 1979, the cultivars Armado April and Preminda (Royal Sluis Co.) were seeded on August 1, 16, and 30, 1979, and were transplanted on August 28, September 10, and October 8, respectively. Nitrogen rates, in addition to the base fertilizer at planting, were 1) 50 pounds N/acre sidedressed as ammonium nitrate on February 12 and again on March 7, 1980, and 2) 100 pounds N/acre on the same dates. Plots were 4 rows x 25 feet and treatments were in randomized block design.

Overwinter Cauliflower Variety Trial, 1977-1978

Seven varieties were direct-seeded on July 13, 1977. All varieties except Pinnacle (Asmer Seed Co.) were from Elsoms, Ltd. Plot size was one 24-foot row with the stand thinned to approximately one foot between plants. An additional 225 pounds/acre of ammonium nitrate (34-0-0) was applied on February 2, 1978. Harvest commenced on March 16 and heads were harvested two or three times per week until May 8.

Pepper Variety Trial, 1978

This trial included several sweet or bell pepper varieties which have been grown in the Valley for several years, new releases from seed companies, new hot pepper lines from the New Mexico State University breeding program, and a few common hot pepper types. Of the 32 varieties tested, 7 were hot or chile types, the remainder bell or other sweet peppers. Qualities desired are earliness, good yield potential, large and attractive fruit, and strong growth habit with good fruit cover.


Overwintering Onions for Spring Harvest, 1978

The purpose of these experiments was to evaluate the performance of several Japanese, French, and American onion varieties in overwintering trials. Willamette Valley growers need to improve their competitive position in onion production. One possible method is to overwinter plants for late spring or early summer harvest. The major needs are to find varieties which are sufficiently winter hardy and which resist bolting, and to determine the correct planting time. Weed and disease control also poses problems.