California Agriculture, June 1949
Volume 3, Number 6
Raisin grape picking operations reduced
Raisin grapes: Study shows way to reduce picking operations and speed up harvest
by Louis E. Davis, Leo K. Edwarde
The following article is a condensation of a progress report on a Motion and Time Study of the Methods of Harvesting Raisin Grapes, conducted by members of the University of California's Division of Mechanical Engineering, with the coüperatwn of Dr. H. R. Wellman, Director of the Giannini Foundation, College of Agriculture Experiment Station, Berkeley, and N. D. Hudson and R. A. Break, College of Agriculture Extension Service, Fresno County.
Sulfur burn in citrus: Radioactive sulfur used in studies to distinguish between fruit-contained and applied sulfur
by F. M. Turrell, M. B. Chervenak
Not available – first paragraph follows: Radioactive sulfur tracers and a Geiger counter were used at the Riverside Experiment Station in investigations made to learn how sulfur burns citrus fruits—so sulfur could be safened.
Longer-lived alfalfa: Transference of resistance to bacterial wilt gives promise of greater productivity
by E. H. Stanford
B. R. Houston, Assistant Professor of Plant Pathology and Assistant Plant Pathologist the Experiment Station, Davis, is coüperating this development program.
New insecticides: Effectiveness and limitations of chlorinated hydrocarbon insecticides not yet fully determined
by A. E. Michelbacher, W. W. Middlekauff
Not available – first paragraph follows: Of all the new chlorinated hydrocarbon insecticides, DDT has been the one investigated most thoroughly—and despite a vast amount of research, all of its limitations have not been ascertained.
Storage of citrus fruits: Studies indicate use of 2,4-D and 2,4,5-T sprays on trees prolong storage life of citrus fruits
by Wm. S. Stewart
The study initiated in January 1947 was a coüperative project between the Research Department of the California Fruit Growers Exchange, Ontario, and the Division of Plant Physiology of the University of California Citrus Experiment Station, Riverside.
Dairy cattle nutrition: Eneray, Protein, Mineral and vitamin requirements for maintenance and production
by G. P. Lofgreen
Not available – first paragraph follows: All problems in dairy cattle nutrition can not be solved merely by furnishing the proper nutrients in the proper amounts. Other factors such as palatability, suitability, and economy must always be considered.
Milk production records: Continued dairy herd improvement possible when breeding program i s based on adequate records
by W. M. Regan
Not available – first paragraph follows: California's dairy industry leads all other states in the number and proportion of cows being tested—with more than 153,000 cows, or 17% of her cow population, in dairy-herd-improvement association work
Almond hulls: Tested as feed for dairy cattle and lambs showed promise and limitations in value
by Robert F. Miller
Not available – first paragraph follows: Some of the 40,000 tons of almond hulls produced annually in California—as a by-product in the process of hulling almonds—are fed to dairy cattle, sheep, and milk goats.
New pomegranate mite: Russeting and cracking of peel characterize injury responsible for much culling
by Walter Ebeling, Roy J. Pence
Not available – first paragraph follows: Pomegranate growers in a section some five miles north of Porterville in Tulare County began about six years ago to notice a russeting and cracking of the peel of pomegranate fruits in some orchards.
Cannibalism in poultry: Causes of problems complex and probably involve nutrition, genetics and management
by Wilbor O. Wilson
Not available – first paragraph follows: Chickens and turkeys normally feed on grains, vegetation and meat but under certain conditions they may become meat eaters to the extent of being cannibalistic.
Sweet corn hybrids: Effects on hybrid varieties when 2,4-D is used in sprays for weed control
by F. W. Zink
Not available – first paragraph follows: Pre-emergent or post-emergent spraying with 2,4-D for control of weeds in field corn may reduce cultivation to a minimum.
California spinach: Economic status in 1948 reviewed and trends in marketing considered
by Sidney Hoos, P. C. Habib