An allometric model to estimate total leaf area of banana plants of the cultivar Vitoria

The plants physiological processes such as tr[a.sup.ns]piration and photosynthetic efficiency are directly related to leaf area, which is difficult to quantify in a nondestructive manner. To generate a model to estimate the total leaf area of plants of banana cv. Vitoria, simple and multiple linear...

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Bibliographic Details
Published in:Ciência rural Vol. 52; no. 10; p. 1
Main Authors: da Penha Padovan, Maria, Taques, Renato Correa, Marques, Nathielly Bertollo, Grangeiro, Leticia Paula Perdigao, Lazzarini, Alciro Lamao, Culik, Mark Paul, Ventura, Jose Aires
Format: Journal Article
Language:English
Published: Universidade Federal de Santa Maria 01-10-2022
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Summary:The plants physiological processes such as tr[a.sup.ns]piration and photosynthetic efficiency are directly related to leaf area, which is difficult to quantify in a nondestructive manner. To generate a model to estimate the total leaf area of plants of banana cv. Vitoria, simple and multiple linear regressions utilizing the length and width of the third leaf, the product of length and width of the third leaf, and the total number of leaves of 'Vitoria 'plants, were tested. The data to develop the model were obtained from 'Vitoria' banana plants from different edafoclimatic conditions and management. The best performance of the model was obtained using stepwise multiple regression with [r.sup.2]=0.93 and [r.sup.2]= 0.94. Validation of the model resulted in an [r.sup.2] of 0.74. Key words: Musa, genotype, regression, nondestructive method. Processos fisiologicos das plantas como transpiragao e eficiencia fotossintetica estao diretamente relacionados a area foliar, a qual e difcil quantificar de forma nao destrutiva. Para gerar um modelo para estimar a area foliar total de plantas da cv. Vitoria, foram testadas regressoes lineares simples e multiplas utilizando comprimento e largura da terceira folha, o produto comprimento e largura da terceira folha e numero total de folhas. Os dados para desenvolver o modelo foram obtidos de cultivos com diferentes condicoes edafoclimaticas e de manejo. O melhor modelo foi obtido por meio de regressao multiplastepwise com [r.sup.2] = 0,93 e [r.sup.2] = 0,94. A validagao do modelo resultou em [r.sup.2]de 0,74. Palavras-chave: Musa, genotipo, regressao, metodo nao destrutivo.
ISSN:0103-8478
DOI:10.1590/0103-8478c[r.sup.2]0210403