SciELO - Scientific Electronic Library Online

 
vol.35 issue6Morphophysiological responses of açacu (Hura crepitans L.) plants from Amazon river floodplains: anoxic soil effectsMorphophysiological characteristics associated to quality of Eucalyptus urophylla seedlings produced on different substrates author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Revista Árvore

Print version ISSN 0100-6762

Abstract

LUCIO, Alessandro Dal Col; OLIVEIRA, Fernanda de  and  LOPES, Sidinei José. Confidence limits to variables in seeds analysis of exotic forest species. Rev. Árvore [online]. 2011, vol.35, n.6, pp. 1165-1171. ISSN 0100-6762.  http://dx.doi.org/10.1590/S0100-67622011000700002.

The objective of this work was to propose patterns for standardization of the indexes of analyses of seeds forest species. Thus, it was used results of the analysis of seeds of forest species from 1997 until 2007, belonging to the archives of Laboratório de Análise de Sementes da Fundação Estadual de Pesquisa Agropecuária (FEPAGRO - Laboratory of Seeds Analysis of Agricultural Research State Foundation - FEPAGRO - located in Santa Maria, Rio Grande do Sul. The limits of reliability were constructed from an analysis of data normality and the use of evaluation criteria for pseudo-sigma. The confidence limits set a minimum acceptable value so that a plot of seeds can be commercialized, proposing that the germination values within the confidence limits which are very low or low must be discarded, because they do not present acceptable indices of germination.

Keywords : Forest seeds; Confidence limits; Evaluation criteria.

        · abstract in Portuguese     · text in Portuguese     · pdf in Portuguese