Language: No linguistic content / Location: Riverside (Calif.) / Names: University of California, Riverside. Citrus Research Center and Agricultural Experiment Station - UCLA Library Digital Collections Search Results

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Lateral root of a navel orange tree (No. 1085) at the Rubidoux location of the Citrus Experiment Station, Riverside, 1933

Lateral root of a navel orange tree (No. 1085) at the Rubidoux location of the Citrus Experiment Station, Riverside, 1933

Navel orange tree (No. 1085) at the Rubidoux location of the Citrus Experiment Station, Riverside, 1933

Navel orange tree (No. 1085) at the Rubidoux location of the Citrus Experiment Station, Riverside, 1933

Grapefruit trees in tanks 5, 6, and 7 at the Citrus Experiment Station, Riverside, 1934

Grapefruit trees in tanks 5, 6, and 7 at the Citrus Experiment Station, Riverside, 1934

Valenica orange trees in tanks at the Citrus Experiment Station, Riverside, 1934

Valenica orange trees in tanks at the Citrus Experiment Station, Riverside, 1934

Valenica orange trees in tanks at the Citrus Experiment Station, Riverside, 1934

Valenica orange trees in tanks at the Citrus Experiment Station, Riverside, 1934

Covercrop of mustard and vetch in a field S-3 at the Citrus Experiment Station, Riverside, 1935

Covercrop of mustard and vetch in a field S-3 at the Citrus Experiment Station, Riverside, 1935

Trench for the study of root development of citrus at the Citrus Experiment Station, Riverside, 1934

Trench for the study of root development of citrus at the Citrus Experiment Station, Riverside, 1934

Trench for the study of root development of citrus in Field S-3 at the Citrus Experiment Station, Riverside, 1934

Trench for the study of root development of citrus in Field S-3 at the Citrus Experiment Station, Riverside, 1934

Shelter over a cover crop at the Citrus Experiment station, Riverside, 1935

Shelter over a cover crop at the Citrus Experiment station, Riverside, 1935

Trench for the study of root development of citrus at the Citrus Experiment Station, Riverside, 1934

Trench for the study of root development of citrus at the Citrus Experiment Station, Riverside, 1934

Trench for the study of root development of citrus at the Citrus Experiment Station, Riverside, 1934

Trench for the study of root development of citrus at the Citrus Experiment Station, Riverside, 1934

Trench for the study of root development of citrus at the Citrus Experiment Station, Riverside, 1934

Trench for the study of root development of citrus at the Citrus Experiment Station, Riverside, 1934

Effects of size of trees on growth of weeds, plot 6, rows 15 and 16, field S-3, at the Citrus Experiment Station, Riverside, 1936

Effects of size of trees on growth of weeds, plot 6, rows 15 and 16, field S-3, at the Citrus Experiment Station, Riverside, 1936

Leaves of the 1st, 2nd and 3rd cycle of growth of a navel orange tree from field S-3 at the Citrus Experiment Station, Riverside, 1936

Leaves of the 1st, 2nd and 3rd cycle of growth of a navel orange tree from field S-3 at the Citrus Experiment Station, Riverside, 1936

Navel orange with splitting from field S-3 at the Citrus Experiment Station, Riverside 1936

Navel orange with splitting from field S-3 at the Citrus Experiment Station, Riverside 1936

Tangerine hybrid tree in Dr. Frost's collection in field S-1 at the Citrus Experiment Station, Riverside, 1927

Tangerine hybrid tree in Dr. Frost's collection in field S-1 at the Citrus Experiment Station, Riverside, 1927

Wilted orange tree leaves following the freeze of January 1937 (18 1/2 degrees fahrenheit), at the Citrus Experiment Station, Riverside, 193

Wilted orange tree leaves following the freeze of January 1937 (18 1/2 degrees fahrenheit), at the Citrus Experiment Station, Riverside, 193

Wilted orange tree leaves following the freeze of January 22, 1937 (18 1/2 degrees fahrenheit), at the Citrus Experiment Station, Riverside, 1937

Wilted orange tree leaves following the freeze of January 22, 1937 (18 1/2 degrees fahrenheit), at the Citrus Experiment Station, Riverside, 1937

Sunflower plant after wilting, at the Citrus Experiment Station, Riverside, 1937

Sunflower plant after wilting, at the Citrus Experiment Station, Riverside, 1937

Breaking sub-soil furrow beside 1 year old citrus trees at the Citrus Experiment Station, Riverside, 1930

Breaking sub-soil furrow beside 1 year old citrus trees at the Citrus Experiment Station, Riverside, 1930

Irrigation experimental citrus planting in a field at the Citrus Experiment Station, Riverside, 1930

Irrigation experimental citrus planting in a field at the Citrus Experiment Station, Riverside, 1930

Citrus orchard irrigated by furrows and a water distibutor at the Citrus Experiment Station, Riverisde, 1930

Citrus orchard irrigated by furrows and a water distibutor at the Citrus Experiment Station, Riverisde, 1930

Cover crop of mustard and vetch before discing in field S-3, at the Citrus Experiment Station, Riverside, 1932

Cover crop of mustard and vetch before discing in field S-3, at the Citrus Experiment Station, Riverside, 1932

Cover crop of mustard and vetch in field S-3, at the Citrus Experiment Station, Riverside, 1932

Cover crop of mustard and vetch in field S-3, at the Citrus Experiment Station, Riverside, 1932

Cover crop of mustard and vetch in field S-3, at the Citrus Experiment Station, Riverside, 1932

Cover crop of mustard and vetch in field S-3, at the Citrus Experiment Station, Riverside, 1932

Tank experiments at the Citrus Experiment Station, Riverside, 1934

Tank experiments at the Citrus Experiment Station, Riverside, 1934

Weighing lysimeter at the Citrus Experiment Station, Riverside, circa 1934

Weighing lysimeter at the Citrus Experiment Station, Riverside, circa 1934

Citrus tree in a tub beside a trough at the Citrus Experiment Station, Riverside, 1934

Citrus tree in a tub beside a trough at the Citrus Experiment Station, Riverside, 1934

Trench for the study of root development of citrus at the Citrus Experiment Station, Riverside, 1934

Trench for the study of root development of citrus at the Citrus Experiment Station, Riverside, 1934

Trench for the study of root development of citrus at the Citrus Experiment Station, Riverside, 1934

Trench for the study of root development of citrus at the Citrus Experiment Station, Riverside, 1934

Cover crop of mustard and melilotus in field 1 at the Citrus Experiment Statin, Riverside,

Cover crop of mustard and melilotus in field 1 at the Citrus Experiment Statin, Riverside,

Cover crop with melilotus in field 1 at the Citrus Experiment Station, Riverside, 1936

Cover crop with melilotus in field 1 at the Citrus Experiment Station, Riverside, 1936

Cover crop of mustard in field 1 at the Citrus Experiment Station, Riverside, 1935

Cover crop of mustard in field 1 at the Citrus Experiment Station, Riverside, 1935

Penetration of rain into sandy soil on the south side of field S-1 at the Cirtus Experiment Station, Riverside, 1936

Penetration of rain into sandy soil on the south side of field S-1 at the Cirtus Experiment Station, Riverside, 1936

Penetration of rain into sandy soil on the south side of field S-1 at the Cirtus Experiment Station, Riverside, 1936

Penetration of rain into sandy soil on the south side of field S-1 at the Cirtus Experiment Station, Riverside, 1936

Navel orange with splitting at the Citrus Experiment Station, Riverside 1936

Navel orange with splitting at the Citrus Experiment Station, Riverside 1936

Navel orange with splitting at the Citrus Experiment Station, Riverside 1936

Navel orange with splitting at the Citrus Experiment Station, Riverside 1936

Navel orange with splitting at the Citrus Experiment Station, Riverside 1936

Navel orange with splitting at the Citrus Experiment Station, Riverside 1936

Cover crop in an orchard at the Citrus Experiment Station, Riverside 1937

Cover crop in an orchard at the Citrus Experiment Station, Riverside 1937

Citrus trees in field S-3 at the Citrus Experiment Station, Riverside, 1935

Citrus trees in field S-3 at the Citrus Experiment Station, Riverside, 1935

Furrow irrigation experiment plots at the Citrus Experiment Station, Riverside, 1931

Furrow irrigation experiment plots at the Citrus Experiment Station, Riverside, 1931

Doyle and Picker soil sampling at the Citrus Experiment Station, Riverside, 1930

Doyle and Picker soil sampling at the Citrus Experiment Station, Riverside, 1930

Citrus Home-made land leveler beside a completed sub-soil furrow at the Citrus Experiment Station, Riverside, 1931

Citrus Home-made land leveler beside a completed sub-soil furrow at the Citrus Experiment Station, Riverside, 1931

Cover crop of mustard and vetch before discing in field S-3, at the Citrus Experiment Station, Riverside, 1932

Cover crop of mustard and vetch before discing in field S-3, at the Citrus Experiment Station, Riverside, 1932

Truck and air compressor for soil sampling at the Citrus Experiment Station, Riverside, 1930

Truck and air compressor for soil sampling at the Citrus Experiment Station, Riverside, 1930

Lateral root of a navel orange tree (No. 1085) at the Rubidoux location of the Citrus Experiment Station, Riverside, 1933

Lateral root of a navel orange tree (No. 1085) at the Rubidoux location of the Citrus Experiment Station, Riverside, 1933

Completed sub-soil furrow in field S-3 at the Citrus Experiment Station, Riverside, 1930

Completed sub-soil furrow in field S-3 at the Citrus Experiment Station, Riverside, 1930

Main root system of a navel orange tree (No. 1085) at the Rubidoux location of the Citrus Experiment Station, Riverside, 1933

Main root system of a navel orange tree (No. 1085) at the Rubidoux location of the Citrus Experiment Station, Riverside, 1933

Grapefruit and lemon trees in tanks 9- 12 at the Citrus Experiment Station, Riverside, 1934

Grapefruit and lemon trees in tanks 9- 12 at the Citrus Experiment Station, Riverside, 1934

Grapefruit and lemon trees in tanks 8-12 at the Citrus Experiment Station, Riverside, 1934

Grapefruit and lemon trees in tanks 8-12 at the Citrus Experiment Station, Riverside, 1934

Grapefruit and lemon trees in tanks 8-12 at the Citrus Experiment Station, Riverside, 1934

Grapefruit and lemon trees in tanks 8-12 at the Citrus Experiment Station, Riverside, 1934

Trench for the study of root development of citrus in Field S-3 at the Citrus Experiment Station, Riverside, 1934

Trench for the study of root development of citrus in Field S-3 at the Citrus Experiment Station, Riverside, 1934

Trench for the study of root development of citrus in Field S-3 at the Citrus Experiment Station, Riverside, 1934

Trench for the study of root development of citrus in Field S-3 at the Citrus Experiment Station, Riverside, 1934

Grapefruit trees in tanks at the Citrus Experiment Station with orchard trees in the background

Grapefruit trees in tanks at the Citrus Experiment Station with orchard trees in the background

Lemon trees in tanks 10 and 11 at the Citrus Experiment Station, Riverside, 1934

Lemon trees in tanks 10 and 11 at the Citrus Experiment Station, Riverside, 1934

Covercrop of mustard and vetch in field S-3 at the Citrus Experiment Station, Riverside, 1932

Covercrop of mustard and vetch in field S-3 at the Citrus Experiment Station, Riverside, 1932

Navel orange with splitting from field S-3 at the Citrus Experiment Station, Riverside 1936

Navel orange with splitting from field S-3 at the Citrus Experiment Station, Riverside 1936

Navel orange with splitting at the Citrus Experiment Station, Riverside 1936

Navel orange with splitting at the Citrus Experiment Station, Riverside 1936

Wilted orange tree leaves following the freeze of January 22, 1937 (18 1/2 degrees fahrenheit), at the Citrus Experiment Station, Riverside, 1937

Wilted orange tree leaves following the freeze of January 22, 1937 (18 1/2 degrees fahrenheit), at the Citrus Experiment Station, Riverside, 1937

Tree Y-1-2 in field S-3 at the Citrus Experiment Station, Riverside, 1937

Tree Y-1-2 in field S-3 at the Citrus Experiment Station, Riverside, 1937

Close up of cover crop of filaree and malva in an orchard in field S-3 at the Citrus Experiment Station, Riverside, 1937

Close up of cover crop of filaree and malva in an orchard in field S-3 at the Citrus Experiment Station, Riverside, 1937

Cover crop of filaree in an orchard in field S-3 at the Citrus Experiment Station, Riverside 1937

Cover crop of filaree in an orchard in field S-3 at the Citrus Experiment Station, Riverside 1937

Sunflower plant before wilting, at the Citrus Experiment Station, Riverside, 1937

Sunflower plant before wilting, at the Citrus Experiment Station, Riverside, 1937

Basin irrigation plots in field S-3 at the Citrus Experiment Station, Riverside, 1939

Basin irrigation plots in field S-3 at the Citrus Experiment Station, Riverside, 1939

Plant in a tin can as part of a plant-water relations study at the Citrus Experiment Station, Riverside, 1938

Plant in a tin can as part of a plant-water relations study at the Citrus Experiment Station, Riverside, 1938