Blackberry yields increased: Growth regulator sprays tested on Boysen, Olallie, and Thornless Logan varieties in San Diego County in 1955

Bringhurst, R; Crane, J; Voth, V

Blackberry yields increased: Growth regulator sprays tested on Boysen, Olallie, and Thornless Logan varieties in San Diego County in 1955

Authors

R. S. Bringhurst
Julian C. Crane
Victor Voth

Authors Affiliations

R. S. Bring Hurst is Assistant Penologist, University of California, Davis; Julian C. Crane is Associate Pomologist, University of California, Davis; Victor Voth is Assistant Specialist in Pomology, University of California, Daois.

Publication Information

Hilgardia 10(4):5-15. DOI:10.3733/ca.v010n04p5. April 1956.

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Abstract

Seasonal average increases of 12% to 18% in fruit yield have resulted from experimental application of growth regulator sprays on blackberries. The experiments were conducted on the Boysen, Olallie and Thornless Logan varieties at Torrey Pines in 1955. Preliminary experiments completed a year earlier on the Olallie and Boysen varieties in Santa Cruz and Stanislaus counties had given some evidence that growth regulator sprays were effective in this respect.

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