Vegetable Report 1965
ABOUT THIS COLLECTION
The Vegetable Report is one of several commodity-based agricultural research reports published by the University of Arizona.
This report was first published in 1965.
The purpose of the report is to provide an annual research update to farmers, researchers, and those in the agricultural industry. The research is conducted by University of Arizona and USDA-ARS scientists.
Both historical and current Vegetable Reports have been made available via the UA Campus Repository, as part of a collaboration between the College of Agriculture and Life Sciences and the University Libraries.
Contents for Vegetable Report 1965
- Lettuce Variety Trials in Cochise County
- Precision Planting Lettuce
- Lettuce Nutrition as Influenced by Nitrogen, Phosphorus, Potassium and Magnesium Fertilization
- Effect of Fertilizers on Yield, Quality and Nutrient Uptake by Lettuce
- Sclerotiniose or Drop of Lettuce
- Lettuce Insect Control with Experimental Insecticide Compounds
- Mechanical Harvesting of Lettuce
- Biochemical Studies of Rib Discoloration and Pink Rib of Lettuce
- Characteristics of Harvested Lettuce Heads
- Lettuce Packing Procedures
- Economic Feasibility of Cantaloup Production in Navajo County, Arizona
- Cantaloup Bed Shape Modification for Mechanical Harvest
- Effects of Magnesium, Nitrogen, and Micronutrients on the Yield and Incidence of Crown Blight of Cantaloups in Yuma Area
- Cucurbit Virus Investigations
- Cantaloup Harvest Aids
- Cucurbita Research
- Arizona Potato Variety Trials, 1961-1964
- Influence of Seed Piece Size on Potato Yields
- Fertilizer Studies with Potatoes in the Queen Creek Area
- Potato Fertilization
- Fertilizer Placement in Potato Production
- Irrigation Practices with Potatoes
- Studies on Fall Production Problems with Irish Potatoes in Arizona
- Potato Insect Control with Granular Systemic Insecticides
- Verticillium Wilt of Potato
- Potato Soft-Rot Diseases
- Influence of Tuber Maturity, Phorate Insecticide, Storage Conditions and Reconditioning on Chip Potato Quality and Chip Characteristics
- Irrigation Trials with Cabbage
- Insect Control on Cabbage with New Pesticide Compounds
- Irrigation Studies with Carrots
- Response of Dry Onions to Varying Levels of Soil Moisture
- Economic Feasibility of Chili Production in Northern Arizona
- Chili Pepper Variety Trials
- Yuma Sweet Corn Variety Trials
- Fall Armyworm Control on Sweet Corn with Granular Insecticide
- Curly Top Resistant Tomato Variety Observations
- Effects of Treatments on the Postharvest Senescence of Green Leaves
- Estimated Use of Plant Nutrients in Arizona, by Crops
- Feasibility of Protectice Cropping (Plastic Greenhouse Production) in Central Arizona
- Bacterial Soft-Rot of Vegetables
- Low Volume Spray Applications of Technical Malathion to Vegetable Crops
- Labor Requirements for Vegetable Crops in Arizona
- Vegetable Crops Extension Program
- Teaching Program in Vegetable Crops
- Vegetable Growers Association Memorial Scholarships
Low Volume Spray Applications of Technical Malathion to Vegetable CropsAn 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.
Bacterial Soft-Rot of VegetablesA 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 ArizonaAfter 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.
Curly Top Resistant Tomato Variety ObservationsThe 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.
Fall Armyworm Control on Sweet Corn with Granular InsecticideSeveral seasons of work indicate that topical application of granular pesticides to the whorl of fall grown sweet corn will effectively control the fall armyworm. First application to be made when the corn is approximately 12 inches high, followed by one or two additional applications at intervals of one week. The following three materials: 5 percent Diazinon granular, 5 percent Zectran granular, and 2 percent Endrin granular are the most promising when applied at 20-30 pounds per acre.
Chili Pepper Variety TrialsResults from pepper variety tests across the state indicate that New Mexico 6-4, Rio Grande 21 and Sandia A are desirable varieties to grow in Arizona. Which variety to select will depend on use, location and individual preferences. No variety in the tests was found suitable for growing for paprika.
Response of Dry Onions to Varying Levels of Soil MoistureOnions respond favorably to increasing levels of soil moisture as measured by increase in bulb size and total yields. Maintaining a soil moisture level of 18-20 centibars of tension (nearly field-holding capacity) produces the greatest yields of bulbs. However, dry onions so produced are somewhat softer in texture, tended toward thick -neck growth, matured slower, and are more difficult to cure adequately in the normal length of time. Onions grown on lesser amounts of water tend to have the reverse characteristics. Costs of production are similarly increased under high soil moisture levels because of the need for replacing nitrogen leached out of the root zone. Also, the costs of the water and its application must be increased. Therefore, the economics involved would be a required consideration.
Irrigation Studies with CarrotsData from four years of irrigation studies with carrots indicate this crop has a rather wide tolerance to varying soil moisture levels as measured by yield and quality of roots. Yields have varied between treatments from 514 to 665 crates per acre. Soil moisture levels ranging from a very wet level (18-20 centibars of tension) to a dry level (75-80 centibars of tension) have shown no significant differences in yield. Only from treatment 5, the very dry schedule, was the yield significantly lower than for all other treatments.
Insect Control on Cabbage with New Pesticide CompoundsA number of different chemicals have been evaluated for control of cabbage loopers and other lepidopterous pests of cole crops over the past several years. These materials are usually formulated as dusts or emulsifiable concentrates but some have been prepared as wettable powders or granular formulations. Some are more effective against one species of insect than another. Only a very few of the prospective pesticides passed all the required testing and became available commercially.
Irrigation Trials with CabbageThe 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.