SciELO - Scientific Electronic Library Online

 
vol.36 issue1Characters of seeds, seedlings and young plants of Ormosia arborea (Vell.) Harms and Ormosia fastigiata Tul. (Leg-papilionoideae)Morphological characterization of fruits, seeds and germination of Sideroxylon obtusifolium (Roem. e Schult.) Penn. (Sapotaceae) author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Revista Árvore

Print version ISSN 0100-6762

Abstract

BIERNASKI, Fabricio Antonio; HIGA, Antonio Rioyei  and  SILVA, Luciana Duque. Genetic variability for juvenile characters of Cedrela fissilis vell. Progenies: a subsidy for definition of seed collection zone. Rev. Árvore [online]. 2012, vol.36, n.1, pp.49-58. ISSN 0100-6762.  https://doi.org/10.1590/S0100-67622012000100006.

The objective of this study was to evaluate the genetic differences among three matrix groups of Cedrela fissilis based on quantitative juvenile variables on a progeny test to define seed collecting zones and use of seeds of this species in the study region as well as to evaluate genetic variability of the sampled material. A progeny test was established in a nursery with seeds from 48 seed trees collected in the municipalities of Rio Negrinho, Mafra and São Bento do Sul, state of Santa Catarina, and in the municipalities of Lapa, Rio Negro, Campo do Tenente and Antonio Olinto, state of Paraná. Of the collected seed trees, 33 sampled trees were distributed in three sites and 15 trees were dispersed in the studied region. It was used a complete random block design, with 8 replicates and 20 plants per plot. Evaluated data included: emergency rate; seedling base diameter and height (61, 102 and 145 days after the seeds were sowed); seedling survival; number of leaves per seedling; aerial section dry mass and root dry mass; and the foliar area of the third fully expanded leaf measured from the apical meristem. The Maximum Restricted Likelihood Method (REML) was used, using the software SELEGEN for analysis. It was found that the juvenile characters are strongly genetically controlled and they can be used to estimate genetic variability of population samples of Cedrela fissilis. The three groups of trees spatially limited did not significantly differ among each other, allowing to conclude that the three areas are part of the same tree seed transfer zone.

Keywords : Progeny test; Juvenile characters and Seed zones.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License