California Agriculture, April 1950

Volume 4, Number 4
Peach varieties developed for warm climates

research articles

Peaches for warm climates: New varieties are solving problem of insufficient winter chilling in southern California orchards
by M. M. Winslow
pp3-13, doi#10.3733/ca.v004n04p3
Abstract
Not available – first paragraph follows: New peach varieties requiring little winter chilling to break dormancy are solving the problem of delayed foliation in orchards in the lower elevations of southern California.
Expanded Abstract | PDF

Increasing olive fruit sizes: Thinning important in lifting fruit from substandard grade into canning quality
by H. T. Hartmann , Karl W. Opitz
pp4-14, doi#10.3733/ca.v004n04p4
Abstract
Not available – first paragraph follows: Olives of canning fruit size are of particular interest to California olive growers due to the probable 50% cut in the tariff on olive oil.
Expanded Abstract | PDF

2,4-D and citrus fruit sizes: Increase of citrus fruit size primarily due to accelerated growth rate from spray treatment
by Wm. S. Stewart , H. Z. Hield
pp5-6, doi#10.3733/ca.v004n04p5
Abstract
Not available – first paragraph follows: For the sixth successive year the grower of Valencia oranges apparently is faced with small-sized fruit in 1950— even though the size is larger than in 1949.
Expanded Abstract | PDF

Male-sterile tomatoes: Unfruitful mutants offer several advantages for the production of hybrid seed
by Charles M. Rick
pp7-12, doi#10.3733/ca.v004n04p7
Abstract
Not available – first paragraph follows: Male-sterile tomatoes offer advantages in the production of hybrid seed— from which substantially higher yields than those of parent varieties have been reported.
Expanded Abstract | PDF

The redwoods of California: Conservation of Sequoias possible through seedling maintenance and proper cutting practices
by Emanuel Fritz
pp8, doi#10.3733/ca.v004n04p8
Abstract
Not available – first paragraph follows: The redwoods of California are the only living species of Sequoia.
Expanded Abstract | PDF

Oak pit scales: Control possible with emulsion-type foliage oil and toxaphene spray
by A. Earl Pritchard , Robert E. Beer
pp9-14, doi#10.3733/ca.v004n04p9
Abstract
Not available – first paragraph follows: Oak pit scales are serious pests of oak trees in California. Terminal growth, branches, and smaller trees are often killed as a result of the feeding scales, and large trees may be weakened seriously. Experimental work indicates that oak pit scales may be controlled.
Expanded Abstract | PDF

Ripe fruit rot in tomatoes: Early maturity of fruit and harvest before fall rains are factors in reducing loss
by R. G. Grogan
pp10-14, doi#10.3733/ca.v004n04p10
Abstract
Not available – first paragraph follows: Fruit rot in the California canning tomato crop is an important problem because state standardization laws require that fruit having 5% or more rot at the time of inspection be rejected as unfit for processing.
Expanded Abstract | PDF

Potato scab control: Applications of sulfur to increase soil acidity effective in reducing disease in experiments in Kern County
by John W. Oswald , David N. Wright
pp11-12, doi#10.3733/ca.v004n04p11
Abstract
Not available – first paragraph follows: The most promising approach in the prevention of potato scab development has been to increase the acidity of the soil by the addition of sulfur.
Expanded Abstract | PDF

Sweet corn: Growth and yield affected by irrigation in semiarid areas
by John H. MacGillivray
pp13, doi#10.3733/ca.v004n04p13
Abstract
Not available – first paragraph follows: Growth of sweet corn is greatly affected by insufficient soil moisture, as measured by yield of marketable ears, size of plant, and dry matter produced.
Expanded Abstract | PDF

Egg washing field trials: Studies indicate clean unwashed eggs are most suitable for satisfactory storage
by F. W. Lorenz
pp15, doi#10.3733/ca.v004n04p15
Abstract
Not available – first paragraph follows: Washing eggs before storage is a risky business. The only safe eggs to store are clean eggs produced clean and unwashed.
Expanded Abstract | PDF

General Information

Dairy cow replacements: About 90% of Los Angeles County in-shipments in 1949 came from areas other than the milkshed
by Edwin C. Voorhies, Nathaniel S. Mewhinney
pp2, doi#10.3733/ca.v004n04p2
PDF