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The heat balance of apple buds and blossoms part ii. the water requirements for frost protection by overhead sprinkler irrigation



The heat balance of apple buds and blossoms part ii. the water requirements for frost protection by overhead sprinkler irrigation



Agricultural and Forest Meteorology 37(2): 159-174



Measured changes in the temperatures of apple fruit buds subjected to water sprinkling for frost protection during natural and simulated frosts were compared with those predicted from heat transfer theory. Agreement was improved when allowance was made for the partial wetting of the buds during the early stages of frost protection and for the consequences of ice accretion, which changed the "bud" dimensions and heat transfer coefficients. The heat balance equation derived to take these factors into account makes possible accurate calculation of the water requirement for sprinkling under varying environmental conditions.

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Accession: 006686175

Download citation: RISBibTeXText

DOI: 10.1016/0168-1923(86)90006-7



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