• Cantaloup Bed Shape Modification for Mechanical Harvest

      Harriott, B. L. (College of Agriculture, University of Arizona (Tucson, AZ), 1965-08)
      Current Arizona cultural practices for cantaloup are not compatable with mechanized harvesting equipment now being developed for cantaloup. Mechanical harvesters will require a uniformly sloped bed, preferably flat, at harvest time. Experiments thus far indicate that this condition can be met by reshaping the conventional bed after the plants have emerged.
    • Characteristics of Harvested Lettuce Heads

      Oebker, N. F.; Hariott, B. L.; Page, Carmy G.; Foerman, B. R.; Grounds, R. E. (College of Agriculture, University of Arizona (Tucson, AZ), 1965-08)
      A study was made of the characteristics of harvested lettuce heads in Arizona during the 1964-65 season. Information on size, weight, firmness and number of wrapper leaves of each head sampled was collected and set up for analysis. No results were available at the time of this progress report.
    • Low Volume Spray Applications of Technical Malathion to Vegetable Crops

      Gerhardt, Paul D. (College of Agriculture, University of Arizona (Tucson, AZ), 1965-08)
      An experimental application of technical grade malathion was made by helicopter to a mixed planting of vegetables on the University of Arizona Mesa Experiment Station. Technical malathion at the rate of one pint per acre was not phytotoxic to onions, carrots, lettuce, cabbage, broccoli and cauliflower. This dosage did not satisfactorily control cabbage loopers and beet armyworms.
    • Verticillium Wilt of Potato

      Stone, William J. H. (College of Agriculture, University of Arizona (Tucson, AZ), 1965-08)
      Isolates of Verticillium Albo-atrum were obtained from potato and from cotton. Investigations are in process to ascertain the relationship between cotton Verticillium wilt and potato Verticillium wilt and to determine the significance of the disease to Arizona potato production.
    • Bacterial Soft-Rot of Vegetables

      Stone, William J. H. (College of Agriculture, University of Arizona (Tucson, AZ), 1965-08)
      A highly virulent bacterial isolate was obtained from Arizona vegetables. Pathogenicity and physiological studies were made in an effort to correctly identify the isolate.
    • Feasibility of Protectice Cropping (Plastic Greenhouse Production) in Central Arizona

      Foerman, B. R. (College of Agriculture, University of Arizona (Tucson, AZ), 1965-08)
      After commercial production on a trial basis during a four-year period (1961-65), protective cropping of tomatoes and possibly a few other higher return vegetable crops shows a promising alternative enterprise for local production whosever risks are intensified. Better adapted varieties, disease control and market development are primary objectives to be overcome.
    • Irrigation Trials with Cabbage

      Pew, W. D.; Park, J. H. (College of Agriculture, University of Arizona (Tucson, AZ), 1965-08)
      The influences of soil moisture are pronounced in cabbage grown under Arizona's semiarid conditions. An understanding of these effects is a must if the most effective cabbage production is to be achieved. High, constant levels of moisture reduces solidity, increases apparent size, reduces color and general market acceptance. On the other hand, dry soil moisture conditions increases solidity and color and reduces size and generally impairs market quality because of the smallness of size and the tough and woody texture of the cabbage thus produced. Best quality cabbage commensurate with acceptable yields and greatest effectiveness is obtained where moisture is kept at 75-80 centibars of tension.
    • Curly Top Resistant Tomato Variety Observations

      Oebker, N. F.; Davison, Arlen; Bears, John (College of Agriculture, University of Arizona (Tucson, AZ), 1965-08)
      The performances of four curly top resistant tomato varieties were observed in Arizona during the period 1961 to 1964. Owyhee showed resistance but produced small fruits. Breeding line No. 126 and its improved replacement VF 122, had field resistance, but VF 122 did not set fruit as well as other varieties under high temperature conditions. Payette appeared to be the most promising of the varieties tried. It showed better resistance than Owyhee and produced good yields of desirable fruit when staked and trained properly.
    • Teaching Program in Vegetable Crops

      Fazio, Steve (College of Agriculture, University of Arizona (Tucson, AZ), 1965-08)
    • Irrigation Practices with Potatoes

      Pew, W. D.; Park, J. H. (College of Agriculture, University of Arizona (Tucson, AZ), 1965-08)
      Data from five years of experimentation with irrigation and soil moisture levels indicate that a certain knowledge and general understanding of these factors is important in potato production. Nine treatments ranging from a constant very wet level to a constant dry treatment were used. Yield differences were significant and varied from a low of 321 cwt, from plants exposed to a very wet (18-20 centibars tension) level early in the season followed by a dry (75-80 centibars tension) condition during the last part of the growing season, to 416 cwt where the plants were kept at a dry level early and changed to a very wet level late in the season. Growers often unknowingly reduce yields and lower quality by applying excessive amounts of irrigation water.
    • Studies on Fall Production Problems with Irish Potatoes in Arizona

      Bessey, Paul M. (College of Agriculture, University of Arizona (Tucson, AZ), 1965-08)
    • Effects of Treatments on the Postharvest Senescence of Green Leaves

      Bessey, Paul M. (College of Agriculture, University of Arizona (Tucson, AZ), 1965-08)
    • Cantaloup Harvest Aids

      Larsen, W. E. (College of Agriculture, University of Arizona (Tucson, AZ), 1965-08)
    • Lettuce Nutrition as Influenced by Nitrogen, Phosphorus, Potassium and Magnesium Fertilization

      Stanersen, L. A.; Turner, Fred Jr. (College of Agriculture, University of Arizona (Tucson, AZ), 1965-08)
    • Labor Requirements for Vegetable Crops in Arizona

      Pawson, Walter (College of Agriculture, University of Arizona (Tucson, AZ), 1965-08)
    • Estimated Use of Plant Nutrients in Arizona, by Crops

      Pawson, W. W.; Stanberry, C. O.; Fuller, W. H.; Tucker, T. C.; Pew, W. D.; Hillman, J. S. (College of Agriculture, University of Arizona (Tucson, AZ), 1965-08)
    • Cucurbita Research

      Bemis, W. P. (College of Agriculture, University of Arizona (Tucson, AZ), 1965-08)
    • Biochemical Studies of Rib Discoloration and Pink Rib of Lettuce

      Sharples, G. C. (College of Agriculture, University of Arizona (Tucson, AZ), 1965-08)
    • Lettuce Packing Procedures

      Oebker, N. F.; Grounds, R. E.; Foerman, B. R. (College of Agriculture, University of Arizona (Tucson, AZ), 1965-08)