Pi statistics underlying the evaluation of stability, adaptability and relation between the genetic structure and homeostasis in popcorn - DOI: 10.4025/actasciagron.v32i2.7312

Thiago Otávio Mendes de Paula; Antonio Teixeira do Amaral Júnior; Leandro Simões Azeredo Gonçalves; Carlos Alberto Scapim; Luiz Alexandre Peternelli; Vanessa Quitete Ribeiro da Silva

doi:10.4025/actasciagron.v32i2.7312

Pi statistics underlying the evaluation of stability, adaptability and relation between the genetic structure and homeostasis in popcorn - DOI: 10.4025/actasciagron.v32i2.7312

Thiago Otávio Mendes de Paula UFV
Antonio Teixeira do Amaral Júnior UENF
Leandro Simões Azeredo Gonçalves UENF
Carlos Alberto Scapim UEM
Luiz Alexandre Peternelli UFV
Vanessa Quitete Ribeiro da Silva UENF

DOI: https://doi.org/10.4025/actasciagron.v32i2.7312

Keywords: Zea mays, genotype interaction by environment, phenotypic stability

Abstract

The purpose of this study was to evaluate the interaction between genotypes and environments, evaluate adaptability and stability, and study the relationship between genetic structure and homeostasis. In addition to landrace, the study evaluated recommended genotypes or genotypes in experimental recommendation stages (varieties and hybrids) in three environments in northern and northwestern Rio de Janeiro State. Eight traits were measured, including grain yield and popping expansion. The individual analysis of variance revealed significant differences for all traits at 1% probability. In the combined analysis of variance, the genotype by environment interaction was significant at 1% probability for all traits except ear height. The interaction was simple for all traits except mean number of ears. The method of Lin and Binns detected the most suitable and stable genotypes, and also the most productive. UNB2U-C4 and IAC112 contained the lowest values of general P_i. Of those, UNB2U-C4 contributed least to the interaction, and IAC112 ranked fourth in interaction. UNB2U-C4 stood out with the best adaptation to favorable and unfavorable environments. No association between the genetic structure and stability degree in popcorn was observed.

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Author Biographies

Thiago Otávio Mendes de Paula, UFV

É doutorando em Genética e Melhoramento pela Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, 36570-000, Viçosa, MG, Brasil.

Antonio Teixeira do Amaral Júnior, UENF

É Professor Associado do Laboratório de Melhoramento Genético Vegetal – Universidade Estadual do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000, Parque Califórnia, 28013-602, Campos dos Goytacazes, RJ, Brasil.

Leandro Simões Azeredo Gonçalves, UENF

É doutorando em Melhoramento de Plantas no Laboratório de Melhoramento Genético Vegetal – Universidade Estadual do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000, Parque Califórnia, 28013-602, Campos dos Goytacazes, RJ, Brasil.

Carlos Alberto Scapim, UEM

É Professor Associado do Departamento de Agronomia, Pós-Graduação em Agronomia e Genética e Melhoramento – Universidade Estadual de Maringá, Av. Colombo, 5790, 87020-900, PR, Brasil.

Luiz Alexandre Peternelli, UFV

É Professor Associado do Departamento de Informática – Área de Estatística – Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, 36570-000, Viçosa, MG, Brasil.

Vanessa Quitete Ribeiro da Silva, UENF

É Doutoranda em Produção Vegetal no Laboratório de Melhoramento Genético Vegetal – Universidade Estadual do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000, Parque Califórnia, 28013-602, Campos dos Goytacazes, RJ, Brasil.

Published

2010-04-27

How to Cite

Paula, T. O. M. de, Amaral Júnior, A. T. do, Gonçalves, L. S. A., Scapim, C. A., Peternelli, L. A., & Silva, V. Q. R. da. (2010). Pi statistics underlying the evaluation of stability, adaptability and relation between the genetic structure and homeostasis in popcorn - DOI: 10.4025/actasciagron.v32i2.7312. Acta Scientiarum. Agronomy, 32(2), 269-277. https://doi.org/10.4025/actasciagron.v32i2.7312

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Issue

Vol 32 No 2 (2010)

Section

Genetics and Plant Breeding

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