Comparison of methods for estimating the optimum plot size for sorghum and showy rattlebox

Authors

DOI:

https://doi.org/10.30612/agrarian.v15i55.15207

Keywords:

Uniformity trial, Modified maximum curvature, Linear response with plateau model

Abstract

This study aimed to compare two methods of estimating the optimum plot size to evaluate the fresh matter of sorghum (Sorghum bicolor (L.) Moench) and showy rattlebox (Crotalaria spectabilis Roth.). Fifteen uniformity trials were carried out sorghum and showy rattlebox cultivated alone and intercropped. Fresh matter was evaluated in 540 basic experimental units (BEU) of 1 m × 1 m (36 BEU per trial). The optimum plot size was determined using the methods modified maximum curvature and linear response with plateau model. Largest optimum plot size and, consequently, greater experimental precision is obtained by the linear response with plateau model compared to modified maximum curvature method. The optimum plot size to evaluate the fresh matter of sorghum and showy rattlebox cultivated alone or intercropped is 8.23 m2.

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Author Biographies

​Alberto Cargnelutti Filho, ​Universidade Federal de Santa Maria

Departamento de Fitotecnia

Estatística Experimental; Experimentação Vegetal ; Modelos Biométricos; Estatística Aplicada; Amostragem

Daniela Lixinski Silveira, Universidade Federal de Santa Maria

Discente de doutorado do Programa de Pós-Graduação em Agronomia

Valéria Escaio Bubans, Universidade Federal de Santa Maria

Discente de mestrado do Programa de Pós-Graduação em Agronomia

Felipe Manfio Somavilla, Universidade Federal de Santa Maria

Acadêmico do Curso de Agronomia

Bruno Fillipin Osmari, Universidade Federal de Santa Maria

Acadêmico do Curso de Agronomia

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Published

2022-12-30

How to Cite

Cargnelutti Filho, ​Alberto, Silveira, D. L., Bubans, V. E., Somavilla, F. M., & Osmari, B. F. (2022). Comparison of methods for estimating the optimum plot size for sorghum and showy rattlebox. Agrarian Journal, 15(55), e15207. https://doi.org/10.30612/agrarian.v15i55.15207

Issue

Vol. 15 No. 55 (2022)

Section

Paper - Agronomy

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Copyright (c) 2023 ​Alberto Cargnelutti Filho, Daniela Lixinski Silveira, Valéria Escaio Bubans, Felipe Manfio Somavilla, Bruno Fillipin Osmari

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