Journal of Food, Agriculture and Environment

Simple, fast, and non-destructive method to estimate the leaf area in Piper nigrum plants

Author(s):

Raimundo Thiago Lima da Silva ¹*, Lillian Matias de Oliveira ², Ariele Carneiro de Andrade ², Layla Gerusa Souza Lima ², Raimundo Leonardo Lima de Oliveira ², Émile Costa Melo ², Cândido Ferreira de Oliveira Neto ², Allan Klynger da Silva Lobato ³

Recieved Date: 2013-01-20, Accepted Date: 2013-04-30

Abstract:

This study aimed to (i) determine efficient mathematical models, and (ii) estimate the leaf area in Piper nigrum plants, using the dimensional parameters of leaves with different sizes. This study was conducted with Piper nigrum L. (cv. Singapore), being 1200 trees with age of four years. Linear, linear without intercept, quadratic, cubic, logarithmic, exponential and potential models were adjusted between leaf area and length, the width and its products (length x width), and eliminated those that had a coefficient of determination less than 0.90. The statistic used to evaluate the performance of the models was the Pearson correlation coefficient (r), the determination (R²), the root mean square error, mean absolute error, the index d of Willmott and CS index. Measurements of leaf area in Piper nigrum plants can be estimated by linear equations, linear without intercept, quadratic and potential with good accuracy. Therefore, leaf area can be estimated by the following equations: AF = 0.6105(CxL) + 1.8159, AF = 0.6281(CxL), AF = 0.0004(CxL)² + 0.5339(CxL) + 5.2799 e AF = 0.78(CxL)^0.9525.

Keywords:

Equations, mathematical models, Piper nigrum L., leaf area

---

Journal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 2
Category: Environment
Pages: 1480-1486

---

Full text for Subscribers

---

Information:

Note to users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.

Article purchasing

If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.

---

Purchase this Article:   20 Purchase PDF Order Reprints for 15

---

Share this article :