Fresh Market Vegetable Production

Corn head smut resistance (1987)


Report to the Oregon Processed Vegetable Commission

Jim Baggett
OSU Dept of Horticulture


  1. Test Plant Introduction lines and other germplasm sources for high field resistance to head smut.
  2. Determine if immunity or true seedling resistance exists in germplasm sources.
  3. Test commercial F1 hybrids and inbreds for head smut resistance.

Maturity and Yield Characteristics of Cauliflower



  • To describe the relationship between maturity characteristics of cauliflower and the timing of curd initiation, plant size at curd initiation, curd growth rate and the duration of curd growth.
  • To determine the relative contribution of gene-type and environment of the variability in the yield and maturity of cauliflower.
  • To prepare a comprehensive review of the research literature on factors affecting the yield and maturity of cauliflower.

Evaluation of supersweet corn varieties for the Treasure Valley



The project evaluates new supersweet and sugary-enhanced sweet corn varieties to identify superior plant materials. Varieties are evaluated for

  • Reliability in plant stand establishment.
  • Uniformity of maturity date.
  • Resistance to lodging.
  • Acceptability for yield and ear conformation.
  • Processing quality.

Determine the length of harvest period possible with a limited number of varieties.

Effects of nitrogen fertilizer rates and tillage treatments (soil compaction) on carrot root yields and root characteristics



  • To evaluate effects of supplemental nitrogen rates, in addition to growers base rates, on yield and root characteristics.
  • To evaluate effects of four or five tillage treatments that result in various degrees of soil compaction on carrot root growth and yield of two varieties (O.S.U. Vegetable Research Farm).

Development of corn earworm, Heliothis zea, on corn in Oregon



  • Refine corn earworm monitoring techniques using pheromone and black light traps.
  • Continue developing a statewide pheromone trapping program.
  • Study earworm flight and infestation trends that can be used to predict damaging infestations.
  • Develop corn earworm and sweet corn development models.
  • Conduct insecticide trials to determine if and when sprays are most effectively used.
  • Incorporate relevant information into a damage prediction model that can be used for management purposes.