| SeedCalc-package {SeedCalc} | R Documentation |
Seed germination and seedling growth indexes
Description
Functions to calculate seed germination and seedling emergence and growth indexes.
The main indexes for germination and seedling emergence, considering the time for seed germinate are: T10, T50 (Farooq et al., 2005), T90 e MGT (Labouriau, 1983); considering the germination speed are: Germination Speed Index (Maguire, 1962), Mean Germination Rate (Labouriau, 1983); considering the homogeneity of germination are: Coefficient of Variation of the Germination Time (Carvalho et al., 2005) and Variance of Germination (Labouriau, 1983); Uncertainty (Labouriau & Valadares, 1976) and Synchrony (Primack, 1980).
The main seedling indexes are Growth, Uniformity and Vigour (Sako, 2001; Medeiros & Pereira, 2018).
Details
| Package: | SeedCalc |
| Type: | Package |
| Version: | 1.0.0 |
| Date: | 2018-10-31 |
| License: | GPL (>= 2) |
Author(s)
Laercio Junio da Silva laerciojdsilva@gmail.com.br
Andre Dantas de Medeiros medeiros.seeds@gmail.com
Ariadne Morbeck Santos Oliveira ariadneoliveira86@gmail.com
Maintainer: Laercio Junio da Silva laerciojdsilva@gmail.com
References
CARVALHO, M. P., SANTANA, D. G., RANAL, M. A. (2005) <doi:10.1590/S0100-84042005000300018>
FAROOQ, M., BASRA, S. M. A., AHMAD, N., HAFEEZ, K. (2005) <doi:10.1111/j.1744-7909.2005.00031.x>
LABOURIAU L. G., VALADARES, M.B. (1976, ISSN:0001-3765)
LABOURIAU, L. G. (1983) Uma nova linha de pesquisa na fisiologia da germinação das sementes. Anais do XXXIV Congresso Nacional de Botânica. SBB, Porto Alegre, 11–50.
MAGUIRE, J. D. (1962) <doi:10.2135/cropsci1962.0011183X000200020033x>
MEDEIROS, A. D. DE, PEREIRA, M. D. (2018) <doi:10.1590/1983-40632018v4852340>
PRIMACK, R.B. (1980) <doi:10.2307/2259460>
SAKO, Y., MCDONALD, M. B., FUJIMURA, K., EVANS, A. F., BENNETT, M. A. A system for automated seed vigour assessment. Seed Science and Technology, v. 29, n. 3, p. 625–636, 2001.