Estimation of leaf area in sweet cherry using a non-destructive method

Leaf area measurement can be a time consuming process and requires sophisticated electronic instruments. The objective of this research was to develop a simple, accurate, non-destructive and time saving predictive model for leaf area (LA) estimation in sweet cherry trees. Linear regression equati...

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Main Authors: E.D. Cittadini, P.L. Peri
Format: Article
Language:English
Published: Instituto Nacional de Tecnología Agropecuaria (INTA) 2006-01-01
Series:RIA: Revista Investigaciones Agropecuarias
Subjects:
Online Access:http://www.redalyc.org/articulo.oa?id=86435110
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author E.D. Cittadini
P.L. Peri
author_facet E.D. Cittadini
P.L. Peri
author_sort E.D. Cittadini
collection DOAJ
description Leaf area measurement can be a time consuming process and requires sophisticated electronic instruments. The objective of this research was to develop a simple, accurate, non-destructive and time saving predictive model for leaf area (LA) estimation in sweet cherry trees. Linear regression equations were fitted and evaluated for three cultivars and two training systems using alternatively the length (L), the width (W) and their product (L*W) as independent variables. Regression using L*W variable fitted the data better (R2 = 0.994) than L or W (R2 = 0.863 and 0.787, respectively). The slopes using L*W as the explanatory variable were between 0.6776 and 0.6442 for different combinations of cultivar and training system. Combinations of cultivar training system showed different slopes (P<0.05), except for «tatura-Bing» and «vase-Lapins». A general equation had a slope of 0.6612 with R2 = 0.993 (slightly lower than considering all combinations of cultivar and training system). Validation of the general equation using extra data from a «Lapins/ Mahaleb» orchard showed high accuracy (R2 = 0.9826), but underestimated LA. However, the general equation can be used for predicting LA for practical purposes, such as estimating Leaf Area Index of commercial orchards.
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spelling doaj.art-eb0eb9d331814bb48d9aef1e54ec1d9e2024-03-21T19:17:46ZengInstituto Nacional de Tecnología Agropecuaria (INTA)RIA: Revista Investigaciones Agropecuarias0325-87181669-23142006-01-01351143150Estimation of leaf area in sweet cherry using a non-destructive methodE.D. CittadiniP.L. PeriLeaf area measurement can be a time consuming process and requires sophisticated electronic instruments. The objective of this research was to develop a simple, accurate, non-destructive and time saving predictive model for leaf area (LA) estimation in sweet cherry trees. Linear regression equations were fitted and evaluated for three cultivars and two training systems using alternatively the length (L), the width (W) and their product (L*W) as independent variables. Regression using L*W variable fitted the data better (R2 = 0.994) than L or W (R2 = 0.863 and 0.787, respectively). The slopes using L*W as the explanatory variable were between 0.6776 and 0.6442 for different combinations of cultivar and training system. Combinations of cultivar training system showed different slopes (P<0.05), except for «tatura-Bing» and «vase-Lapins». A general equation had a slope of 0.6612 with R2 = 0.993 (slightly lower than considering all combinations of cultivar and training system). Validation of the general equation using extra data from a «Lapins/ Mahaleb» orchard showed high accuracy (R2 = 0.9826), but underestimated LA. However, the general equation can be used for predicting LA for practical purposes, such as estimating Leaf Area Index of commercial orchards.http://www.redalyc.org/articulo.oa?id=86435110leaf areaprunus aviumnondestructive estimationleaf lengthleaf width
spellingShingle E.D. Cittadini
P.L. Peri
Estimation of leaf area in sweet cherry using a non-destructive method
RIA: Revista Investigaciones Agropecuarias
leaf area
prunus avium
non
destructive estimation
leaf length
leaf width
title Estimation of leaf area in sweet cherry using a non-destructive method
title_full Estimation of leaf area in sweet cherry using a non-destructive method
title_fullStr Estimation of leaf area in sweet cherry using a non-destructive method
title_full_unstemmed Estimation of leaf area in sweet cherry using a non-destructive method
title_short Estimation of leaf area in sweet cherry using a non-destructive method
title_sort estimation of leaf area in sweet cherry using a non destructive method
topic leaf area
prunus avium
non
destructive estimation
leaf length
leaf width
url http://www.redalyc.org/articulo.oa?id=86435110
work_keys_str_mv AT edcittadini estimationofleafareainsweetcherryusinganondestructivemethod
AT plperi estimationofleafareainsweetcherryusinganondestructivemethod