Dear Mom ,

you can use dynamic model to calculate chilling hours in cultivation of fruit trees. whose link is given below.

https://ucanr.edu/sites/fruittree/files/49320pdf.

Thank you very much for the help

There are several models for various fruit crops chill calculation. you can find it easily in internet resources, but more details:

1. For stone fruits (peaches meanly) is used so called - UTAH UNIVERSITY (Logan) model (Richardson and others., 1974)

calculation is based on discrete type of assumptions - CU is accumulated only in range - 1.5 - 12.4 °C.

A. (Chill unit calculation in range between 1.4 - 9.1 °C)

1 hour below

Thank you very much for the help

I agree by Zviad Bobokashvili.

Thank you very much for the help

Is it possible to do the calculation with daily data?

https://assets.researchsquare.com/files/rs-34169/v1/5b86e9a3-54f7-446f-b8e8-7f44c5886d3e.pdf?c=1631843668

https://webapps.msucares.com/chill_hours/.

or

use this software