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Effects of foliar sprays for frost protection in test with young citrus trees

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Authors

R. M. Burns, Ventura County

Publication Information

California Agriculture 24(11):10-11.

Published November 01, 1970

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Abstract

Abstract Not Available – First paragraph follows: A number OF new chemical sprays were tested for frost protection of young citrus during the winter of 1969-70. Fifteen commercial compounds were sprayed on container-grown grapefruit nursery trees and young lemon trees in the field. Most of the compounds were antitranspirants (film-forming, stomata closing, and reflecting types). Growth inhibitors used were maleic hydrazide (MH), potassium salt of 6-hydroxy-3-(2H)-pyridacinone (KMH), and ethyl hydrogen 1-prophylphosphonate (NIA-10637). Freezing the grapefruit nursery trees in a cold chamber resulted in no significant differences in the amount of cold protection given by any of the sprays. Temperatures in the field where the young lemon trial was located never reached freezing, but there were significant differences in growth response to the different sprays.

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Author notes

Nursery trees were provided by the Sespe Land and Water Company in Fillmore, California. Field trial trees were provided by J. R. West, Santa Paula, California. Statistical analysis was by R. A. Brendler, Farm Advisor, Ventura County.

Effects of foliar sprays for frost protection in test with young citrus trees

R. M. Burns
Webmaster Email: wsuckow@ucanr.edu

Effects of foliar sprays for frost protection in test with young citrus trees

Share using any of the popular social networks Share by sending an email Print article
Share using any of the popular social networks Share by sending an email Print article

Authors

R. M. Burns, Ventura County

Publication Information

California Agriculture 24(11):10-11.

Published November 01, 1970

PDF  |  Citation  |  Permissions

Author Affiliations show

Abstract

Abstract Not Available – First paragraph follows: A number OF new chemical sprays were tested for frost protection of young citrus during the winter of 1969-70. Fifteen commercial compounds were sprayed on container-grown grapefruit nursery trees and young lemon trees in the field. Most of the compounds were antitranspirants (film-forming, stomata closing, and reflecting types). Growth inhibitors used were maleic hydrazide (MH), potassium salt of 6-hydroxy-3-(2H)-pyridacinone (KMH), and ethyl hydrogen 1-prophylphosphonate (NIA-10637). Freezing the grapefruit nursery trees in a cold chamber resulted in no significant differences in the amount of cold protection given by any of the sprays. Temperatures in the field where the young lemon trial was located never reached freezing, but there were significant differences in growth response to the different sprays.

Full text

Full text is available in PDF.

Author notes

Nursery trees were provided by the Sespe Land and Water Company in Fillmore, California. Field trial trees were provided by J. R. West, Santa Paula, California. Statistical analysis was by R. A. Brendler, Farm Advisor, Ventura County.


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