Development of prune harvester: New pickup principle improves machine designed to harvest French prunes from ground after removal from tree by shaking
AuthorsR. B. Fridley
P. A. Adrian
Authors AffiliationsR. B. Fridley is Assistant Specialist in Agricultural Engineering, University of California, Davis; P. A. Adrian is Agricultural Engineer, Agricultural Research Service, USDA, and Cooperative Agent, University of California, Davis.
Hilgardia 12(9):3-11. DOI:10.3733/ca.v012n09p3. September 1958.
A basic analysis of various pickup principles applied in the construction of prune harvesters was made during the spring of 1957 to develop—if possible—a gentle method of fruit pickup which would simulate hand picking and give a positive pickup without disturbing the soil surface.
Also in this issue:Strawberry processing costs: Cost-reducing adjustments in processing methods, plant size, and hours of operation may yield substantial savings
Sodium leaf scorch of apricot: Condition causing damage to orchards in Hemet area improved by heavy irrigation treatments with contour basin checks
Apricot irrigation studies: Consumptive use of water by trees and soil salinity control experiment conducted in western Stanislaus County orchards
Soil salinity hazard to seeds: Planting variation to minimize salinity to germinating seeds successful in field tests with alfalfa in Palo Verde Valley
Asparagus irrigation studies: Evidence indicates asparagus on sedimentary soil can utilize about 20″ of irrigation in addition to a normal 16″ rainfall
Nematodes and bacteria on rose: Root-lesion nematode and hairy-root bacterium on important rose crop in southern California controlled by treatments
Gibberellin on orange fruit: Content of ascorbic acid, hydrogen ion and juice increased while rind color, thickness and texture coarseness decreased
Defoliation for early pruning Bartlett: Pears defoliated without tree injury by application of caustic dust in tests on most efficient use as defoliant
Rootstock effect on olive: Influence on tree growth is found to vary with the scion variety in tests conducted at Winters, Corning, and Lindsay
Breeding for resistance to onion downy mildew caused by Peronospora destructor
A genetic analysis of red seed-coat color in Phaseolus vulgaris