Valencia fruit sizes increased: Calcium acid phosphate found effective in outdoor cultures of pure silica sand and nutrient solution
AuthorsA. R. C. Haas
Joseph N. Brusca
Authors AffiliationsA. R. C. Haas is Plant Physiologist, University of California, Riverside; Joseph N. Brusca is Senior Laboratory Technician, University of California, Riverside.
Hilgardia 8(8):11-15. DOI:10.3733/ca.v008n08p11. August 1954.
The Valencia fruit size problem has interrelationships of various factors, and to learn how certain ones operate–when as many as possible of the usual complicating factors are removed–a series of experiments were set up using pure silica sand and nutrient solution. This type of experimental approach makes it possible to synthesize some of the actual orchard nutritional conditions in certain areas where large sizes of fruit often predominate.
Also in this issue:Nitrogen on California cotton: Proper fertilization contributes to good return per dollar invested in San Joaquin Valley farms
Design of livestock shades: Construction and location of shades contribute to animal comfort and maintenance of feed intake
Use of moles for subirrigation: Sutter Basin beans adequately irrigated by improved procedures in ditching and use of artificial moles
New pest of ladino clover seed: Cultural practices believed best control of clover case bearer now established in certain counties
Wind machine tests in citrus: Frost protection studies in 1954 confirmed earlier findings next to be investigated in deciduous trees
Codling moth at linden in 1953: Uccessful control sprays applied in experimental orchard in season of serious infestation at Linden
Biological control of fig scale: From 67% to 100% of scale on twigs sampled in 1954 at colonization sites was found to be parasitized
Temperature and lettuce losses: Variables of time and temperature as they affect deterioration of harvested lettuce investigated
Ornamental flowering plants naturally infected with curly-top and aster-yellows viruses
Weed host range and overwintering of curly-top virus