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http://fruitsandnuts.ucdavis.edu/Weather_Services/chilling_accumulation_models/Chill_Calculators/?type=chill
156 rows · Cumulative Chill Hours and. Modified Chill Hours. Hours below 45° F. Hours between 32 F and 45° F. November 1 through February 28/29. Cumulative Chilling Portions: Dynamic Model. September 1 through August 31. Chilling Hour & Unit Accumulations:
http://fruitsandnuts.ucdavis.edu/Weather_Services/chilling_accumulation_models/about_chilling_units/
1 hour 61 - 65°F = -0.5 chill units. 1 hour >65°F = -1.0 chill units. 1 hour below 34°F = 0.0 chill unit. 1 hour 34.01 - 36°F = 0.5 chill unit. 1 hour 36.01 - 48°F = 1.0 chill unit. 1 hour 48.01 - 54°F = 0.5 chill unit. 1 hour 54.01 - 60°F = 0.0 chill unit. 1 hour 60.01 - 65°F = -0.5 chill unit. 1 hour >65.01°F = -1.0 chill unit
http://fruitsandnuts.ucdavis.edu/Weather_Services/chilling_accumulation_models/
Cumulative Chill Hours and Modified Chill Hours Hours below 45° F model Hours between 32 F and 45° F model November 1 through February 28/29 Cumulative Chilling Portions: Dynamic Model or Cumulative Chilling Portion model September 1 through August 31. Chilling Hour & Unit Accumulations: Historic Accumulation of Chill Hours, Modified Chill Hours, & Chill Units (Utah Model) Hours below 45° F model
http://fruitsandnuts.ucdavis.edu/chillcalc/index.cfm
Weather-Related Models & Services. These programs provide timely weather-related tree crop information specifically for California fruit and nut growers, researchers, and industry. Air temperatures, collected from the California Irrigation Management Information System (CIMIS) weather stations, are …
https://ucanr.edu/chillcalc/?controller=station&action=index
Cumulative Chilling Hours Please select a station from the list. Alameda; Amador; Butte; Colusa; Contra Costa; El Dorado; Fresno; Imperial; Inyo; Kern; Kings
https://ucanr.edu/sites/fruittree/How-to_Guides/Dynamic_Model_-_Chill_Accumulation/
UC Davis researchers, with the cooperation of many growers, have tested the Dynamic Model as a way of calculating chill accumulation. The model calculates chilling accumulation as ‘chill portions’ using a range of temperatures from ~35-55°F, and accounts for chill cancellation due to fluctuating warm temperatures.
http://postharvest.ucdavis.edu/Commodity_Resources/Fact_Sheets/Datastores/Fruit_English/?uid=9&ds=798
Chilling injury results from exposing bananas to temperatures below 13°C (56°F) for a few hours to a few days, depending on cultivar, maturity, and temperature. For example, moderate chilling injury will result from exposing mature-green bananas to one hour at 10°C (50°F), 5 hours at 11.7°C (53°F), 24 hours at 12.2°C (54°F), or 72 hours at 12.8°C (55°F).
http://homeorchard.ucdavis.edu/8261.pdf
hours and warm spring temperatures. Chill hours are accumulated from November through February when temperatures are between 32° and 45°F. If chill hour accumulation is insufficient, effects such as delayed foliation, delayed or extended bloom, and reduced fruit set and/or quality can result. Most locations in northern California receive between 800 and 1,500 chill hours.File Size: 707KB
http://postharvest.ucdavis.edu/Commodity_Resources/Fact_Sheets/Datastores/Fruit_English/?uid=42&ds=798
Vapor heat treatment: Fruit temperature is raised by saturated water vapor at 44.4°C (112°F) until the center of the fruit reaches that temperature, and then held for 8.5 hours; Forced hot air treatment: 2 hours at 43°C (109.4°F) + 2 hours at 45°C (113°F) + 2 hours at 46.5°C (115.7°F) + 2 hours …
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