Path-coefficient analysis in guaraná seedlings

Authors

  • Firmino José do Nascimento Filho "Centro de Pesquisa Agroflorestal da Amazônia Ocidental, Centro de Pesquisa Agroflorestal da Amazônia Ocidental.
  • Akihiko Ando "Universidade de São Paulo, Escola Superior de Agricultura Luiz de Queiroz, Departamento de Genética.
  • Cosme Damião Cruz
  • Terezinha Batista Garcia "Empresa Brasileira de Pesquisa Agropecuária, Centro de Pesquisa Agroflorestal da Amazônia Ocidental, Embrapa Amazonia Ocidental.

DOI:

https://doi.org/10.1590/S1678-3921.pab1993.v28.3896

Keywords:

clones, plant breeding, <i>Paullinia cupana</i>

Abstract

A path-coefficient analysis was made on six characters in guaraná (Paullinia cupana var. sorbilis H.B.K.) seedlings. The data utilized were obtained from a study of the genetic correlation between the characters of shoots and roots. The basal diameter of the stem was the shoot character that showed the highest direct positive effect in the correlation with the dry weight of the roots. On the other hand, the dry weight of the whole shoot showed the highest direct negative effect. It was concluded that the basal diameter of the stem is the character that may be considered as the indicator of the root system size.

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Published

1993-04-01

How to Cite

Filho, F. J. do N., Ando, A., Cruz, C. D., & Garcia, T. B. (1993). Path-coefficient analysis in guaraná seedlings. Pesquisa Agropecuaria Brasileira, 28(4), 447–452. https://doi.org/10.1590/S1678-3921.pab1993.v28.3896

Issue

v.28, n.4, abr. 1993

Section

GENETICS