atsum

Calculates the daily and accumulated thermal sum, considering the subtraction
of the average air temperature by the lower cardinal temperature for each crop.

Performs analyzes and estimates of environmental covariates
and genetic parameters related to selection strategies and development
of superior genotypes. It has two main functionalities, the first being
about prediction models of covariates and environmental processes, while
the second deals with the estimation of genetic parameters and selection
strategies. Designed for researchers and professionals in genetics and
environmental sciences, the package combines statistical methods
for modeling and data analysis. This includes the plastochron estimate
proposed by Porta et al. (2024) <doi:10.1590/1807-1929/agriambi.v28n10e278299>,
Stress indices for genotype selection referenced by Ghazvini et al. (2024)
<doi:10.1007/s10343-024-00981-1>, the Environmental Stress Index described by
Tazzo et al. (2024) <https://revistas.ufg.br/vet/article/view/77035>,
industrial quality indices of wheat genotypes (Szareski et al., 2019),
<doi:10.4238/gmr18223>, Ear Indexes estimation (Rigotti et al., 2024),
<doi:10.13083/reveng.v32i1.17394>, Selection index for protein and grain yield
(de Pelegrin et al., 2017), <doi:10.4236/ajps.2017.813224>, Estimation of the
ISGR - Genetic Selection Index for Resilience for environmental resilience
(Bandeira et al., 2024) <https://www.cropj.com/Carvalho_18_12_2024_825_830.pdf>,
estimation of Leaf Area Index (Meira et al., 2015)
<https://www.fag.edu.br/upload/revista/cultivando_o_saber/55d1ef202e494.pdf>,
Restriction of control variability (Carvalho et al., 2023)
<doi:10.4025/actasciagron.v45i1.56156>, Risk of Disease Occurrence in Soybeans
described by Engers et al. (2024) <doi:10.1007/s40858-024-00649-1> and
estimation of genetic parameters for selection based on balanced experiments
(Yadav et al., 2024) <doi:10.1155/2024/9946332>.

Willyan Junior Adorian Bandeira

EstimateBreed

Estimation of Environmental Variables and Genetic Parameters

Ivan Ricardo Carvalho

Murilo Vieira Loro

Leonardo Cesar Pradebon

Jose Antonio Gonzalez da Silva

atsum function

<dl><dt>AAT</dt>
<dd>The column with the average air temperature values.</dd>
<dt>crop</dt>
<dd>Parameter to define the culture. Use 'maize' for maize, 'soybean'
for soybean, 'flax' for flaxseed, 'trit' for wheat or 'oat' for oat crop.</dd>
<dt>lbt</dt>
<dd>Parameter to define the value of the lower basal temperature to be
used in the calculation. If not informed, the function will use the values of
10, 5, 2, 2 and 0 \(^{\circ}C\) for maize, soybeans, flaxseed, wheat and
oats, respectively.</dd>
<dt>verbose</dt>
<dd>Logical argument. Runs the code silently if FALSE.</dd>
<dt>plot</dt>
<dd>Logical argument. Plot a graph of thermal accumulation if TRUE.</dd></dl>

Arguments

Willyan Junior Adorian Bandeira
Ivan Ricardo Carvalho
Murilo Vieira Loro
Leonardo Cesar Pradebon
Jose Antonio Gonzalez da Silva

Author

Accumulated Thermal Sum — atsum

<dl>

<dt>AAT</dt>
<dd>The column with the average air temperature values.</dd>


<dt>crop</dt>
<dd>Parameter to define the culture. Use 'maize' for maize, 'soybean'
for soybean, 'flax' for flaxseed, 'trit' for wheat or 'oat' for oat crop.</dd>


<dt>lbt</dt>
<dd>Parameter to define the value of the lower basal temperature to be
used in the calculation. If not informed, the function will use the values of
10, 5, 2, 2 and 0 \(^{\circ}C\) for maize, soybeans, flaxseed, wheat and
oats, respectively.</dd>


<dt>verbose</dt>
<dd>Logical argument. Runs the code silently if FALSE.</dd>


<dt>plot</dt>
<dd>Logical argument. Plot a graph of thermal accumulation if TRUE.</dd>

</dl>

atsum: Accumulated Thermal Sum

Description

Usage

Value

Arguments

Author

Examples