Individual modelling of leaf area in cress and radish using leaf dimensions and weight

Aminifard, Mohmmad Hossein; Bayat, Hassan; Khayyat, Mehdi

doi:10.22077/jhpr.2018.1564.1024

Document Type : Original Article

Authors

¹ Assistant Prof, Department of Horticultural Science and Special Plants Regional Research centre, College of Agriculture, University of Birjand, Iran

² Department of Horticultural Science, Faculty of Agriculture, University of Birjand, Iran.

https://doi.org/10.22077/jhpr.2018.1564.1024

Abstract

Purpose: The objective of this study was to establish equations to estimate leaf area (LA) using length (L), width (W), fresh weight (FW) and dry weight (DW), length × width (L×W), width/length (W/L) of cress leaves as a leafy vegetable and radish leaves as a root vegetable. Research method: An experiment was carried out under greenhouse conditions to study the relationship between leaf dimension and weight with LA of these two vegetable plants. Observed LA was obtained by an automatic measuring device and leaf dimensions were measured by a ruler. Regression analyses of LA versus L, W, FW, DW, L×W and W/L led several models that could be used for estimating the area of individual cress and radish leaves. Findings: A linear model employing FW as an independent variable [LA=0.295 (Fresh W.)+ 1.430] resulted the most accurate estimate (R² = 0.912, RMSE = 1.52) of cress LA. For radish, a linear model using W as an independent variable [LA=22.50 (W) + 7.46] showed the most accuracy (R² = 0.874, RMSE = 11.26) for estimating LA. Validation of the regression models showed that the correlation between measured and simulated values using these equations was quite acceptable for radish and cress (R² = 0.922, 0.876), respectively. Research limitations: Evaluation of more leafy vegetables possibly had better results. Originality/Value: The results showed that cress and radish LA could be monitored quickly, accurately, and non-destructively by using the leaf FW and leaf W models, respectively.

Keywords

Main Subjects

Olericulture

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Journal of Horticulture and Postharvest Research

Individual modelling of leaf area in cress and radish using leaf dimensions and weight

References

References

Volume 2, Issue 1 - Serial Number 3
March 2019
March 2019
Pages 83-94

Individual modelling of leaf area in cress and radish using leaf dimensions and weight

References

References

Volume 2, Issue 1 - Serial Number 3March 2019March 2019Pages 83-94

Volume 2, Issue 1 - Serial Number 3
March 2019
March 2019
Pages 83-94