Allometric models for non-destructive leaf area estimation of Jatropha curcas

Jatropha curcas received a lot of attention as a biodiesel feedstock in several countries around the world. The leaf area (LA) estimation is important for biological research due to its close relationship to soil fertility, plant physiological parameters, and photosynthetic efficiency. Allometric models for reliable and accurate models for estimating the leaf area of Jatropha curcas plants based on non-destructive measurements of leaf length (L), width (W), and/ or leaf margins length (P) were developed. Jatropha plant leaves were randomly selected for model construction to estimate the leaf area using L, W, and P leaf values. Simple and accurate equations were obtained, based on leaf width (AL = W1.795), R2 = 0.987, rib length (AL = L32.081), R2 = 0.989, width and rib length (AL = LW0.320), R2 = 0.997, rib length and leaf periphery segment (AL = LP1P120.274), R2 = 0.995, and half rib and width length (AL = LW/0.50.467), R2 = 0.994. The equations were accurate for estimating leaf area of small, medium, and large size of Jatropha leaves.

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Non-destructive leaf area estimation in banana

Scientia Horticulturae ◽

10.1016/0304-4238(91)90070-f ◽

1991 ◽

Vol 45 (3-4) ◽

pp. 251-254 ◽

Cited By ~ 18

Author(s):

M.V. Potdar ◽

K.R. Pawar

Keyword(s):

Leaf Area ◽

Area Estimation ◽

Non Destructive

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Simplifying procedure for a non-destructive, inexpensive, yet accurate trifoliate leaf area estimation in snap bean (Phaseolus vulgaris)

Journal of Applied Horticulture ◽

10.37855/jah.2017.v19i01.03 ◽

2017 ◽

Vol 19 (01) ◽

pp. 15-21 ◽

Cited By ~ 2

Author(s):

Benyamin Lakitan ◽

Laily Ilman Widuri ◽

Mei Meihana

Keyword(s):

Phaseolus Vulgaris ◽

Leaf Area ◽

Trifoliate Leaf ◽

Snap Bean ◽

Area Estimation ◽

Non Destructive

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

Brazilian Journal of Biology ◽

10.1590/1519-6984.09813 ◽

2015 ◽

Vol 75 (1) ◽

pp. 152-156 ◽

Cited By ~ 8

Author(s):

MC. Souza ◽

CL. Amaral

Keyword(s):

Linear Regression ◽

Leaf Area ◽

Leaf Development ◽

Linear Equations ◽

Accurate Estimate ◽

Area Estimation ◽

Leaf Dimensions ◽

Non Destructive ◽

Linear Regressions ◽

Very High

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.

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A Simple, Cost-Effective Method for Leaf Area Estimation

Journal of Botany ◽

10.1155/2011/658240 ◽

2011 ◽

Vol 2011 ◽

pp. 1-6 ◽

Cited By ~ 44

Author(s):

S. K. Pandey ◽

Hema Singh

Keyword(s):

Leaf Area ◽

Cost Effective ◽

Botanical Garden ◽

Area Estimation ◽

Graph Paper ◽

Cost Effective Method ◽

Cost Effective Alternative ◽

Cost Efficient ◽

Non Destructive ◽

Paper Method

Easy, accurate, inexpensive, and nondestructive methods to determine individual leaf area of plants are a useful tool in physiological and agronomic studies. This paper introduces a cost-effective alternative (called here millimeter graph paper method) for standard electronic leaf area meter, using a millimeter graph paper. Investigations were carried out during August–October, 2009-2010, on 33 species, in the Botanical garden of the Banaras Hindu University at Varanasi, India. Estimates of leaf area were obtained by the equation, leaf area (cm2) = x/y, where x is the weight (g) of the area covered by the leaf outline on a millimeter graph paper, and y is the weight of one cm2 of the same graph paper. These estimates were then compared with destructive measurements obtained through a leaf area meter; the two sets of estimates were significantly and linearly related with each other, and hence the millimeter graph paper method can be used for estimating leaf area in lieu of leaf area meter. The important characteristics of this cost-efficient technique are its easiness and suitability for precise, non-destructive estimates. This model can estimate accurately the leaf area of plants in many experiments without the use of any expensive instruments.

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