EstimateBreed (version 1.0.2)

plast: Soybean plastochron estimation

Description

Estimation of soybean plastochron using average air temperature and number of nodes

Usage

plast(GEN, AAT, STAD, NN, habit = "ind", verbose = FALSE, plot = FALSE)

Value

If the growth habit is determined, the function returns a linear model for the V1 to R1 stages (Early Pheno) and a linear model for the R1 to R5 stages (Late Pheno). If the growth habit is indeterminate, returns three linear models: Early Pheno (V1 to R1), Intermediate Pheno (R1 to R3) and Late Pheno (R3 to R5).

Arguments

GEN

The column with the genotype name.

AAT

The column with the average air temperature values.

STAD

The column with the phenological stages of soybean, as described by Fehr & Caviness (1977).

NN

The column with the number of nodes measured in field.

habit

Growth habit of the genotype (default = "ind"). Use "ind" for indeterminate and "det" for determinate.

verbose

Logical argument. Runs the code silently if FALSE.

plot

Logical argument. Returns a graph with the linear models if TRUE.

Author

Willyan Junior Adorian Bandeira

Ivan Ricardo Carvalho

Murilo Vieira Loro

Leonardo Cesar Pradebon

Jose Antonio Gonzalez da Silva

References

Porta, F. S. D., Streck, N. A., Alberto, C. M., da Silva, M. R., & Tura, E. F. (2024). Improving understanding of the plastochron of determinate and indeterminate soybean cultivars. Revista Brasileira de Engenharia Agricola e Ambiental, 28(10), e278299. tools:::Rd_expr_doi("10.1590/1807-1929/agriambi.v28n10e278299")

Fehr, W. R., & Caviness, C. E. (1977). Stages of soybean development. Iowa State University of Science and Technology Special Report, 80, 1-11.

Examples

library(EstimateBreed)
data("pheno")

mod1 <- with(pheno, plast(GEN,TMED,EST,NN,habit="ind",plot=TRUE))
mod1