Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/40415
Type: Artigo de Periódico
Title: Plot size by the variance comparison method for with 'gigante' cactus pear
Authors: Bruno Vinícius Castro Guimarães
Sérgio Luiz Rodrigues Donato
Ignacio Aspiazú
Alcinei Mistico Azevedo
Abner José de Carvalho
Abstract: Appropriate plot size is recognized as a means of maximizing experimental accuracy and contributes to efficient treatment assessment. This study aimed to estimate the optimal plot size for experiments with ‘Gigante’ cactus pears using the comparison of variances method (CVM). A uniformity trial was conducted to assess plant height (PH), number of cladodes (NC), yield (Y), cladode area index (CAI), cladode length (CL), width (CW), thickness (CT) and cladode area (CA) in a cactus pear crop. A rectangular-shaped plot consisting of 10 rows of 50 plants each was used, totaling 500 plants, with 384 basic units (BU), corresponding to the study area. A hierarchical classification approach was adopted, simulating a split-plot design in which each plant was denominated a basic unit (BU), and considering the effects of blocks (B), plots (P)/B, subplots (S)/P/B, rows (R)/S/P/B and plants (Pln)/F/S/P/B. This resulted in five plots sizes, consisting of 1, 12, 24, 48 and 96 basic units. Plots with 12, 24, 48 and 96 BU were statistically equal for the variables Y, PH, NC, CAI, CL, CW and CT, with lower variances than the plot with 1 BU. As such, 4.8 m² with 12 basic units is the optimal experimental plot size for ‘Gigante’ cactus pears.
Subject: Cacto
Análise de variância
language: eng
metadata.dc.publisher.country: Brasil
Publisher: Universidade Federal de Minas Gerais
Publisher Initials: UFMG
metadata.dc.publisher.department: ICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS
Rights: Acesso Aberto
metadata.dc.identifier.doi: 10.5539/jas.v11n18p206
URI: http://hdl.handle.net/1843/40415
Issue Date: 2019
metadata.dc.url.externa: https://doi.org/10.5539/jas.v11n18p206
metadata.dc.relation.ispartof: Journal of Agricultural Science
Appears in Collections:Artigo de Periódico

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