A simple method for non-destructive estimation of total shoot leaf area in tree fruit crops

Spann, Timothy M.; Heerema, Richard J.

doi:10.1016/j.scienta.2010.04.033

Cited by 29 publications

(28 citation statements)

References 18 publications

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“…However, according to the high determination coefficients for lanceolate (0.9634), bilobed (0.9488) and trilobed (0.9194) leaves, the model that estimates leaf area using the product between the length and width of leaf was chosen for determining the leaf area in the different morphological patterns of passion fruit leaves (Table 2). Spann and Heerema (2010) determined the leaf area using non-destructive measurements (linear) in different species of fruit trees (citrus, pear, olive and walnut) and found high R 2 values for the models obtained (ranging from 0.7258 to 0.9340). In fig tree 'Roxo de Valinhos', determination coefficients above 0.6991 were obtained when determining various mathematical models using linear measurements (Souza et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

“…According to the authors, the leaf area is an important parameter in experimental studies of fruit crops because, according to Spann and Heerema (2010), it can influence photosynthesis, transpiration, and leaf expansion, and it affects the growth rate and the quality of production. With the validation of mathematical models using precise and accurate indices, the equations in the study can be used to measure the area of different morphological patterns of passion fruit leaves quickly, accurately and non-destructively, as also observed by Morgado et al (2013) in obtaining the leaf area of wild Passiflora species.…”

Section: Resultsmentioning

confidence: 99%

“…The evaluation of leaf expansion is important to understand light interception that influences physiological processes related to respiration, transpiration, photosynthesis, use and mobilization of nutrients flowering, fruiting, and crop yield (Silva et al, 2015;Spann and Heerema, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Equational models for determining leaf area have been widely used in fruit crops, standing out the models for peach, banana, fig, guava, olive, citrus and strawberry (Sachet et al, 2015;Silva et al, 2015;Souza et al, 2014;Spann et al, 2010;Zuculoto et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

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Non-destructive estimation of leaf area in passion fruit (Passiflora edulis L.)

Souto¹,

Cordeiro²,

Rosado³

et al. 2017

Aust J Crop Sci

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The yellow passion fruit is the most commonly cultivated species of the genus Passiflora in commercial plantations in Brazil. Obtaining accurate and easy to perform measurements for determination of leaf area in passion fruit is crucial to understand the interaction between the plant and the environment. The objective of this study was to develop reliable mathematical equations to directly estimate leaf area in passion fruit using linear measurements. Passion fruit leaves may exhibit varying morphology across phenological stages, with lanceolate, bilobed or trilobed leaves. For each morphological pattern, 100 leaves without defects were collected. The real leaf area was measured with a LI-COR 3100 area meter and regression equations were estimated for real leaf area and measurements of length, width, and their corresponding products, using a millimeter ruler. The results showed that determination of leaf area can be easily and accurately performed for passion fruit leaves of varying morphology, using the product of the linear measurements of length and width. The linear equations chosen for determining leaf area through the product of width and length were 0.25 + 0.64x (lanceolate), -4.82 + 0.69x (bilobed) and -0.81 + 0.54x (trilobed).

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Non-destructive estimation of leaf area in passion fruit (Passiflora edulis L.)

Souto¹,

Cordeiro²,

Rosado³

et al. 2017

Aust J Crop Sci

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“…Estudos têm mostrado a viabilidade de estimar a área foliar e a biomassa foliar seca a partir de medidas lineares do limbo (comprimento, largura ou seu produto) para aplicações na fruticultura (WILLIANS III & MARTINSON, 2003;FALLOVO et al, 2008;ZUCOLOTO et al, 2008;AMARANTE et al, 2009;SPANN & HEEREMA, 2010).…”

Section: Introductionunclassified

Estimativas da área da folha de figueiras 'Roxo de Valinhos' usando dimensões lineares do limbo foliar

et al. 2014

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A simple model for nondestructive leaf area estimation in bedding plants

Giuffrida¹,

Rouphael²,

Toscano³

et al. 2011

Photosynt.

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Measurement of leaf area is commonly used in many horticultural research experiments, but it is generally destructive, requiring leaves to be removed for measurement. Determining the individual leaf area (LA) of bedding plants like pot marigold (Calendula officinalis L.), dahlia (Dahlia pinnata), sweet William (Dianthus barbatus L.), geranium (Pelargonium × hortorum), petunia (Petunia × hybrida), and pansy (Viola wittrockiana) involves measurements of leaf parameters such as length (L) and width (W) or some combinations of these parameters. Two experiments were carried out during spring 2010 (on two pot marigold, four dahlia, three sweet William, four geranium, three petunia, and three pansy cultivars) and summer 2010 (on one cultivar per species) under greenhouse conditions to test whether a model could be developed to estimate LA of bedding plants across cultivars. Regression analysis of LA versus L and W revealed several models that could be used for estimating the area of individual bedding plants leaves. A linear model having LW as the independent variable provided the most accurate estimate (highest R2, smallest mean square error, and the smallest predicted residual error sum of squares) of LA in all bedding plants. Validation of the model having LW of leaves measured in the summer 2010 experiment coming from other cultivars of bedding plants showed that the correlation between calculated and measured bedding plants leaf areas was very high. Therefore, these allometric models could be considered simple and useful tools in many experimental comparisons without the use of any expensive instruments

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A simple method for non-destructive estimation of total shoot leaf area in tree fruit crops

Cited by 29 publications

References 18 publications

Non-destructive estimation of leaf area in passion fruit (Passiflora edulis L.)

Non-destructive estimation of leaf area in passion fruit (Passiflora edulis L.)

Estimativas da área da folha de figueiras 'Roxo de Valinhos' usando dimensões lineares do limbo foliar

A simple model for nondestructive leaf area estimation in bedding plants

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