modified_dynamic: Dynamic Model Modified

In RPertille/ChillModels: Processing Chill and Heat Models for Temperate Fruit Trees

Description

Quantifies the chill accumulation rates with modified dynamic equation for subtropical climate conditions .

Usage

modified_dynamic(x, total = TRUE)

Arguments

x	Vector containing temperature values (Celsius-degree).
total	TRUE Shows the total value of accumulation, FALSE shows the value of chill for each temperature (TRUE is default).

Details

The model is based on dynamic accumulation, by means of the relationship between temperatures. It is applicable in subtropical climate conditions. This model was calibrated and validated based on observations of orchards in Palmas - PR, Brazil.

Value

The function returns values the chill for each temperature of vector (Total = FALSE), or returns the chill accumulation (Total = TRUE).

Author(s)

Marcos Robson Sachet, Idemir Citadin & Rafael Henrique Pertille

References

FISHMAN, Svetlana, EREZ, A. & COUVILLON G. A. (1987). The Temperature Dependence of Dormancy Breaking in Plants: Computer Simulation of Processes Studied Under Controlled Temperatures. J. Theor. Biol.

Examples

x <- rnorm(500, 15, 8)
modified_dynamic(x)
modified_dynamic(x, FALSE)

RPertille/ChillModels documentation built on July 19, 2020, 7:36 p.m.