Repeatability of stability parameters in herbaceous cotton

Authors

  • Francisco José Correia Farias
  • Magno Antônio Patto Ramalho
  • Luiz Paulo de Carvalho
  • José de Alencar Nunes Moreira
  • Joaquim Nunes da Costa

DOI:

https://doi.org/10.1590/S1678-3921.pab1998.v33.4864

Keywords:

cotton, adaptability

Abstract

Yield data of seed cotton from 56 experiments of cultivar evaluation were evaluated in the Northeast of Brazil, from 1985 to 1992, seeking to estimate the repeatability of stability parameters. Repeatability estimates for stability index (Pi), linear regression coefficient (β1) and determination coefficient (R2) were, most of them, from medium to high. The values ranged from 0.45 to 0.67 for the 1985 to 1990 period and 0.45 to 0.96 for 1991 to 1992. These results suggest that selection of these traits may give reasonable gains.

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Published

1998-04-01

How to Cite

José Correia Farias, F., Antônio Patto Ramalho, M., Paulo de Carvalho, L., de Alencar Nunes Moreira, J., & Nunes da Costa, J. (1998). Repeatability of stability parameters in herbaceous cotton. Pesquisa Agropecuaria Brasileira, 33(4), 457–461. https://doi.org/10.1590/S1678-3921.pab1998.v33.4864

Issue

v.33, n.4, abr. 1998

Section

GENETICS