SPECTRAL REFLECTANCE OF IPê-AMARELO LEAVES UNDER DIFFERENT FORMS OF STORAGE AND COLLECTION TIME

Juliana Tramontina; Pamela Suélen K?fer; Tássia Fraga Belloli; Denise Cybis Fontana

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SPECTRAL REFLECTANCE OF IPê-AMARELO LEAVES UNDER DIFFERENT FORMS OF STORAGE AND COLLECTION TIME

机译：不同储存和收集时间下IPê-AMARELO叶的光谱反射

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The application of spectroradiometry techniques to the study of tree species allows the acquisition of information related to plant physiology and morphology, which can be used in conjunction with orbital images. However, it is known that when a leaf is extracted the senescence process is started, which is characterized by cell constituents degradation, loss of water and modifications of the foliar mesophyll structure. In this context, this study aimed to evaluate the influence of the collection time and storage form on the spectral response of ipê-amarelo leaves. Thus, 32 leaves were collected in distinct times (1h, 2h, 24h and 48h) and conditioned with(C) and without(S) thermal storage. The data were evaluated from the visual analysis of the spectral curves, derivative analysis and statistical analysis. The experiment was conducted in a Randomized block design and data were submitted to analysis of variance (ANOVA) and Tukey test (p = 0.05). Results indicated that thermal storage might delay the senescence process of the leaves. Both the collection time and the storage form affect the pattern of spectral behavior of the leaves of ipê-amarelo. The collection time has not shown significant differences between 1-2h. The largest differences were found between 2-24h after collection.

机译：光谱辐射技术在树木种类研究中的应用可以获取与植物生理和形态有关的信息，这些信息可以与轨道图像结合使用。但是，已知在提取叶子时开始衰老过程，其特征在于细胞成分降解，水分损失和叶肉叶肉结构的改变。在这种情况下，本研究旨在评估收集时间和贮藏形式对ipê-amarelo叶光谱响应的影响。因此，在不同的时间（1h，2h，24h和48h）收集了32片叶子，并在（C）和没有（S）蓄热条件下进行了调理。通过光谱曲线的视觉分析，导数分析和统计分析对数据进行评估。该实验以随机区组设计进行，数据提交至方差分析（ANOVA）和Tukey检验（p = 0.05）。结果表明，蓄热可能会延迟叶片的衰老过程。收集时间和存储形式都影响ipê-amarelo叶片的光谱行为模式。收集时间在1-2小时之间未显示出明显差异。收集后2-24小时之间发现最大差异。

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《Floresta》 |2019年第2期|共10页
作者
Juliana Tramontina; Pamela Suélen K?fer; Tássia Fraga Belloli; Denise Cybis Fontana;
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中图分类森林生物学;
关键词
SpectroradiometrySpectral ResponseTree SpecieDerivative analysis;

机译：光谱辐射法光谱响应树物种导数分析;

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SPECTRAL REFLECTANCE OF IPê-AMARELO LEAVES UNDER DIFFERENT FORMS OF STORAGE AND COLLECTION TIME

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