Can SPAD Values and CIE Lab* Scales Predict Chlorophyll and Carotenoid Concentrations in Leaves and Diagnose the Growth Potential of Trees? An Empirical Study of Four Tree Species

IF 4.3 3区材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

ACS Applied Electronic Materials Pub Date : 2024-05-24 DOI:10.3390/horticulturae10060548

Lai Wei, Liping Lu, Yuxin Shang, Xiaodie Ran, Yunpeng Liu, Yanming Fang

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引用次数: 0

Abstract

Photosynthetic pigments are fundamental for plant photosynthesis and play an important role in plant growth. Currently, the frequently used method for measuring photosynthetic pigments is spectrophotometry. Additionally, the SPAD-502 chlorophyll meter, with its advantages of easy operation and non-destructive testing, has been widely applied in land agriculture. However, the application prospects of its test results in horticultural plants have not yet been proven. This study examines the reliability of SPAD values for predicting chlorophyll concentrations. Using fresh and senescent leaves from four common horticultural plants, we measured SPAD values, photosynthetic pigment concentrations, and leaf color parameters. A generalized linear mixed model demonstrated that SPAD values are a reliable indicator for predicting chlorophyll concentrations, yet interspecific variations exist. Based on the predictive power of SPAD values for chlorophyll, we first propose an Enrichment Index (CEI) and a Normal Chlorophyll Concentration Threshold (NCCT). The CEI can be used to compare SPAD values among different species, and the NCCT value can serve as a more accurate indicator for assessing the growth potential of old trees. However, due to a limited sample size, further research with larger samples is needed to refine the diagnosis of plant growth potential and enhance the management of ornamental plant cultivation.

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SPAD 值和 CIE L*a*b* 标度能否预测叶片中叶绿素和类胡萝卜素的浓度并诊断树木的生长潜力？四种树种的经验研究

光合色素是植物光合作用的基础，在植物生长过程中发挥着重要作用。目前，常用的光合色素测量方法是分光光度法。此外，SPAD-502 叶绿素仪具有操作简便、无损检测等优点，已在陆地农业中得到广泛应用。然而，其检测结果在园艺植物中的应用前景尚未得到证实。本研究探讨了 SPAD 值预测叶绿素浓度的可靠性。我们使用四种常见园艺植物的新鲜叶片和衰老叶片，测量了 SPAD 值、光合色素浓度和叶色参数。广义线性混合模型表明，SPAD 值是预测叶绿素浓度的可靠指标，但存在种间差异。基于 SPAD 值对叶绿素的预测能力，我们首先提出了富集指数（CEI）和正常叶绿素浓度阈值（NCCT）。CEI 可用于比较不同树种的 SPAD 值，而 NCCT 值则可作为评估古树生长潜力的更准确指标。不过，由于样本量有限，还需要对更多样本进行进一步研究，以完善植物生长潜力诊断，提高观赏植物栽培管理水平。

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

ACS Applied Electronic Materials Multiple-

CiteScore

7.20

自引率

4.30%

发文量

567

期刊介绍： ACS Applied Electronic Materials is an interdisciplinary journal publishing original research covering all aspects of electronic materials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials science, engineering, optics, physics, and chemistry into important applications of electronic materials. Sample research topics that span the journal's scope are inorganic, organic, ionic and polymeric materials with properties that include conducting, semiconducting, superconducting, insulating, dielectric, magnetic, optoelectronic, piezoelectric, ferroelectric and thermoelectric. Indexed/Abstracted： Web of Science SCIE Scopus CAS INSPEC Portico