Adaptability and phenotypic stability in guarana clones

Authors

  • Firmino José do Nascimento Filho Embrapa
  • Andre Luiz Atroch Embrapa Amazonia Ocidental
  • Cosme Damião Cruz UFV
  • Pedro Crescêncio Souza Carneiro UFV

DOI:

https://doi.org/10.1590/S1678-3921.pab2009.v44.1936

Keywords:

<i>Paullinia cupana</i>, genotype x environment interaction, analysis methods

Abstract

The objective of this work was to determine parameters of adaptability and phenotypic stability of guarana clones (Paullinia cupana) in the state of Amazonas, Brazil. Ten trials were carried out in three counties, where 27 preselected guarana clones were evaluated in a four-year period. A randomized complete block design with two replicates were used, with plots formed by three plants spaced at 5x5 m. Four methods of adaptability and stability were evaluated. The nonparametric method of Lin & Binns modified showed satisfactory results and discriminated the clones performance both in favorable and unfavorable environments, and according to their stability levels. The CMU871 had good adaptability and high phenotypic stability. The CMU619 and CMU609 had specific adaptability to favorable and unfavorable environments, respectively.

Author Biographies

Firmino José do Nascimento Filho, Embrapa

Embrapa Amazônia Ocidental Pesquisador

Andre Luiz Atroch, Embrapa Amazonia Ocidental

Embrapa Amazônia Ocidental Pesquisador

Cosme Damião Cruz, UFV

Universidade Federal de Viçosa Departamento de Biologia Geral Professor

Pedro Crescêncio Souza Carneiro, UFV

Universidade Federal de Viçosa Departamento de Biologia Geral Professor

Published

2010-11-29

How to Cite

Filho, F. J. do N., Atroch, A. L., Cruz, C. D., & Carneiro, P. C. S. (2010). Adaptability and phenotypic stability in guarana clones. Pesquisa Agropecuaria Brasileira, 44(9), 1138–1144. https://doi.org/10.1590/S1678-3921.pab2009.v44.1936

Issue

Section

GENETICS