Non-destructive linear model for leaf area estimation in Vernonia ferruginea Less

Brazilian Journal of Biology

Mc. Souza¹  Cl. Amaral¹ 

关键词: Asteraceae;    cerrado;    savanna;    statistical model;    validation;    Asteraceae;    cerrado;    modelos estatísticos;    savana;    validação;   

DOI  :  10.1590/1519-6984.09813

来源: SciELO

【 摘 要 】

Leaf area estimation is an important biometrical trait for evaluating leaf development and plant growth in field and pot experiments. We developed a non-destructive model to estimate the leaf area (LA) of Vernonia ferruginea using the length (L) and width (W) leaf dimensions. Different combinations of linear equations were obtained from L, L2, W, W2, LW and L2W2. The linear regressions using the product of LW dimensions were more efficient to estimate the LA of V. ferruginea than models based on a single dimension (L, W, L2 or W2). Therefore, the linear regression “LA=0.463+0.676WL” provided the most accurate estimate of V. ferruginea leaf area. Validation of the selected model showed that the correlation between real measured leaf area and estimated leaf area was very high.

【 授权许可】

CC BY   
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