Análise de trilha em caracteres de rendimento de clones de batatadoce (Ipomoea batatas (L.) Lam) - DOI: 10.4025/actasciagron.v28i2.1119

Jair Tenório Cavalcante; Paulo Vanderlei Ferreira; Lailton Soares; Vanderley Borges; Paulo Pedro da Silva; José Wilson da Silva

doi:10.4025/actasciagron.v28i2.1119

**Path analysis in characters of yield of sweet potato clones (Ipomoea batatas (L.) Lam)** - DOI: 10.4025/actasciagron.v28i2.1119

Authors

Jair Tenório Cavalcante UFRN Author
Paulo Vanderlei Ferreira UFAL Author
Lailton Soares UFAL Author
Vanderley Borges UFAL Author
Paulo Pedro da Silva UFAL Author
José Wilson da Silva UFAL Author

DOI:

https://doi.org/10.4025/actasciagron.v28i2.1119

Keywords:

correlação genética, rendimento, efeitos diretos, efeito indiretos

Abstract

The sweet potato (Ipomoea batatas (L.) Lam) is a tuberous vegetable of large adaptation, cultivated in all Brazilian regions that is used for human being or animal feeding. In Brazil, it is cultivated 43,900 ha with an average yield of 11.035 kg ha^-1. Despite the importance of this crop to Brazilian agriculture very little is known about the factors involved in the production of commercial roots. The objective of this work was to identify which variables are related to the yield of commercial roots, using path analysis. The following variables were evaluated: yield of commercial roots (YCR), length of the root (LR), diameter of the root (DR), number of commercial roots (NRC), weight of the aerial part (WAP), yield of non commercial roots (YNCR), resistance to the root borer (RRB), and resistance to the white rust (RWR). The results showed that DR is main variable responsible for the YCR variation. The variables LR, NRC, WAP, YNCR, RRB, and RWR did not present significant effects on the YCR.

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Author Biography

Jair Tenório Cavalcante, UFRN

Possui Graduação em Agronomia (UFAL 1995), Especialização Recursos Hídricos (UFAL 1997), Mestrado em Agronomia (Produção Vegetal) pela UFAL - Universidade Federal de Alagoas (2001). É Professor da EAJ/ UFRN-Universidade Federal do Rio Grande do Norte. Atuando nas Ãreas de: Melhoramento de Plantas "Ipomoea batatas", Olericultura, Grandes Culturas, Fruticultura 'Produção de Mudas', Fitossanidade e Irrigação em Capim Elefante Currículo Lattes

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Published

2008-03-13

Issue

Vol. 28 No. 2 (2006)

Section

Genetics and Plant Breeding

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How to Cite

Path analysis in characters of yield of sweet potato clones (Ipomoea batatas (L.) Lam) - DOI: 10.4025/actasciagron.v28i2.1119. (2008). Acta Scientiarum. Agronomy, 28(2), 261-266. https://doi.org/10.4025/actasciagron.v28i2.1119