Mathematical model for estimating the leaf area of cured dry tobacco using linear measurements

IF 0.8 4区农林科学 Q3 AGRONOMY

Ciencia Rural Pub Date : 2023-04-14 DOI:10.1590/0103-8478cr20220432

Fujian Zhang, Wenjie Bian, Haojun Wang, Bo Yang

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引用次数: 0

Abstract

ABSTRACT: Leaf area of dried Flue-cured tobacco is a reflection of climate and stage of growth of fresh tobacco in field; it also serves as the foundation for calculating a number of significant physical properties of tobacco. So the purpose of this paper was to establish a model to estimate the leaf area of dried Flue-cured tobacco in China from linear dimensions. Three Hundred eight tobacco leaves from different growing area and stalk position were sampled randomly and separated for model selection among linear, proportional and power model type and external evaluation individually. Results showed that there was a significant and strong correlation between leaf area and length×width , The equation LA = 0.495(L×W), where LA is the leaf area and L×W is the product of leaf length and width, was optimum and adequate for the estimation of leaf area of dried tobacco in China examined by Fisher’s test, Akaike delta information criterion (AIC) and Bayesian information criterion (BIC). Growing area and stalk position had minor effect on the parameter before (L×W). The equation can sufficiently predict the area of leaf for external evaluation.

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用线性测量估计干烤烟叶面积的数学模型

摘要:烤烟干叶面积是田间气候和鲜烟生长阶段的反映;它还作为计算烟草若干重要物理特性的基础。因此，本文的目的是建立一个从线性维度估算中国烤烟干叶面积的模型。随机抽取不同种植面积和茎部位置的烟叶308片，分别进行线性、比例和幂型模型选择和外部评价。结果表明，叶面积与length×width之间存在显著且强的相关性，其中LA为叶面积，L×W为叶长与叶宽的乘积，公式LA = 0.495(L×W)最适合于Fisher检验、赤池氏三角洲信息准则(AIC)和贝叶斯信息准则(BIC)对中国干烟草叶面积的估计。在此之前，生长面积和茎位对参数的影响较小(L×W)。该方程能充分预测叶片面积，为外界评价提供依据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Ciencia Rural AGRONOMY-

CiteScore

1.70

自引率

0.00%

发文量

233

审稿时长

2-4 weeks

期刊介绍： The purpose of Ciência Rural is to publish the results of original research, note and reviews which contribute significantly to knowledge in Agricultural Sciences. Preference will be given to original articles that develop news concepts or experimental approaches and are not merely repositories of scientific data. The decison of acceptance for publication lies with the Editors and is based on the recommendations of Editorial Comission, Area Committee and/ or ad hoc reviewers. The editors and reviewers are external to the institution.