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).
| Package: | SeedCalc |
| Type: | Package |
| Version: | 1.0.0 |
| Date: | 2018-10-31 |
| License: | GPL (>= 2) |
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 germina<U+00E7><U+00E3>o das sementes. Anais do XXXIV Congresso Nacional de Bot<U+00E2>nica. SBB, Porto Alegre, 11<U+2013>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<U+2013>636, 2001.