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Article • Planta daninha 35 • 2017 • https://doi.org/10.1590/S0100-83582017350100088   copy

Non-Destructive Model to Predict Commelina diffusa Leaf Area

Modelo Não Destrutivo para Estimar a Área Foliar de Commelina difusa

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT:

Leaf length (L), leaf width (W), and leaf area (LA) were measured from 100 leaves aiming to determine a simple linear equation (Y=a*X) to predict the leaf area of Commelina diffusa, an important weed infesting annual and perennial crops in Brazil and worldwide. Results indicate the equation LA=0.7*LW reliably estimates the leaf area of C. diffusa, after correlating LA with LW, and then validating that equation by analyzing four new 25-leaf samples.

Keywords:
plant growth; biometry; non-destructive method; mathematical model; climbing dayflower

Sociedade Brasileira da Ciência das Plantas Daninhas Departamento de Fitotecnia - DFT, Universidade Federal de Viçosa - UFV, 36570-000 - Viçosa-MG - Brasil, Tel./Fax::(+55 31) 3899-2611 - Viçosa - MG - Brazil
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