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    	<h1 class="NyNewDetail_Name">MultispeQ：田间植物病害与光合表型的高通量无损检测技术及应用</h1>
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        	<span><img src="/Skins/350038/images/ico04.png" />更新时间：2026-10-21</span><span><img src="/Skins/350038/images/ico05.png" />点击次数：85</span>
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        	<p><img src="https://img48.chem17.com/9/20261021/639281930913153588673.png" title="image.png" alt="image.png"/></p><p style="text-align: left;"><img style="max-width:800px;max-height:300%;" src="https://img42.chem17.com/9/20261021/639281931263883035655.jpg" title="植物多参数测量仪.jpg" alt="植物多参数测量仪.jpg"/></p><p style="margin: 0px; padding: 0px; box-sizing: border-box; visibility: visible;"><span leaf="" style="visibility: visible;">作为专业的植物表型分析工具，MultispeQ 的 “硬件配置" 与 “检测能力" 双双在线：</span></p><p style="margin: 0px; padding: 0px; box-sizing: border-box; visibility: visible;"><span style="background-color: rgb(210, 243, 186); box-sizing: border-box; visibility: visible;"><strong style="box-sizing: border-box; visibility: visible;"><span leaf="" style="visibility: visible;">1. 硬核配置，精准捕捉信号</span></strong></span></p><p style="margin: 0px; padding: 0px; box-sizing: border-box; visibility: visible;"><span leaf="" style="visibility: visible;">主电路板搭载 4 枚 LED（峰值发射波长 </span><strong style="box-sizing: border-box; visibility: visible;"><span leaf="" style="visibility: visible;">530、605、650、940 纳米</span></strong><span leaf="" style="visibility: visible;">），搭配对</span><strong style="box-sizing: border-box; visibility: visible;"><span leaf="" style="visibility: visible;"> 700-1160 纳米</span></strong><span leaf="" style="visibility: visible;">波长敏感的光电二极管探测器，可精准检测叶绿素荧光及近红外吸光度变化；</span></p><p style="margin: 0px; padding: 0px; box-sizing: border-box; visibility: visible;"><span leaf="" style="visibility: visible;">附加电路板额外配备 4 枚 LED（650、730、850、940 纳米），并搭载带 BG18 带通滤光片的探测器，进一步提升检测精度。</span></p><p style="margin: 0px; padding: 0px; box-sizing: border-box; visibility: visible;"><span style="background-color: rgb(210, 243, 186); box-sizing: border-box; visibility: visible;"><span leaf="" style="visibility: visible;">2. 检测范围，覆盖 “环境 + 植物" 双维度</span></span></p><p style="margin: 0px; padding: 0px; box-sizing: border-box; visibility: visible;"><span leaf="" style="visibility: visible;">无需复杂操作，MultispeQ 一键即可测量：</span></p><p style="margin: 0px; padding: 0px; box-sizing: border-box; visibility: visible;"><strong style="box-sizing: border-box; visibility: visible;"><span leaf="" style="visibility: visible;">环境参数：</span></strong><span leaf="" style="visibility: visible;">光照强度与光谱质量、温度、湿度、CO₂水平、地理位置、时间；</span></p><p style="margin: 0px; padding: 0px; box-sizing: border-box; visibility: visible;"><strong style="box-sizing: border-box; visibility: visible;"><span leaf="" style="visibility: visible;">植物表型参数：</span></strong><span leaf="" style="visibility: visible;">叶片色素含量（叶绿素、花青素等）、光合关键参数（光系统 II 量子产量 &Phi;II、非光化学激子猝灭 NPQ、线性电子传递速率 LEF 等）、相对叶绿素含量（SPAD 值）。</span></p><p style="margin: 0px; padding: 0px; box-sizing: border-box; visibility: visible;"><span style="background-color: rgb(210, 243, 186); box-sizing: border-box; visibility: visible;"><span leaf="" style="visibility: visible;">3. 高效便捷，田间操作无压力</span></span></p><p style="margin: 0px; padding: 0px; box-sizing: border-box; visibility: visible;"><span leaf="" style="visibility: visible;">单次测量仅需 15 秒，设备自动记录位置信息与各项数据，无需专业人员值守，大幅降低田间作业门槛。测量数据可同步至 PhotosynQ 云分析平台，实现快速处理与可视化呈现。</span></p><p style="margin: 0px; padding: 0px; box-sizing: border-box; visibility: visible;"><span leaf="" style="visibility: visible;"><img src="https://img48.chem17.com/9/20261021/639281933568538773332.png" title="image.png" alt="image.png"/></span></p><p style="margin: 0px; padding: 0px; box-sizing: border-box; visibility: visible;"><span leaf="" style="visibility: visible;"><strong style="box-sizing: border-box;"><span leaf="">（一）田间病害诊断与空间分布分析</span></strong></span></p><p style="margin: 0px; padding: 0px; box-sizing: border-box;"><span leaf="">以大豆镰孢菌侵染病害监测为研究对象，采用 MultispeQ 对大豆冠层 3 个不同高度（V1：下部、V3：中部、V5：上部）进行多次重复检测，通过 PhotosynQ 云分析平台将检测标记自动叠加于卫星图像，基于 SPAD 值绘制田间植物特性空间变异图，如图1。</span></p><p style="margin: 0px; padding: 0px; box-sizing: border-box; visibility: visible;"><span leaf="" style="visibility: visible;"><img src="https://img52.chem17.com/9/20261021/639281933952741381426.png" title="image.png" alt="image.png"/></span></p><p style="margin: 0px; padding: 0px; box-sizing: border-box; visibility: visible;"><span leaf="" style="visibility: visible;">从等高线图（图2）可看出，田间SPAD 值存在明显变异，地图右下角区域植株SPAD较低，c-e图显示，各冠层高度存在类似差异，且SPAD低值区域大致相同。</span></p><section style="box-sizing: border-box;"><p style="margin: 0px; padding: 0px; box-sizing: border-box;"><span leaf="">其原因为该区域的大豆出现了镰孢菌侵染的现象，导致了Rubisco大亚基的降解。</span></p></section><p><br/></p><section style="box-sizing: border-box;"><p style="margin: 0px; padding: 0px; box-sizing: border-box;"><strong style="box-sizing: border-box;"><span leaf="">（二）冠层光合特性与环境因子相互作用分析</span></strong></p><p style="margin: 0px; padding: 0px; box-sizing: border-box;"><span leaf="">通过 MultispeQ 对大豆冠层不同高度（V1、V3、V5）叶片进行连续监测，系统分析了光合有效辐射（PAR）的时间动态变化及线性电子传递速率（LEF）与 PAR 的响应关系（图 3），并探究了冠层部位对光合相关参数的影响（图 4）。</span></p></section><p><br/></p><p style="margin: 0px; padding: 0px; box-sizing: border-box; visibility: visible;"><span leaf="" style="visibility: visible;"><img src="https://img49.chem17.com/9/20261021/639281935330262229357.png" title="image.png" alt="image.png"/></span></p><p style="margin: 0px; padding: 0px; box-sizing: border-box; visibility: visible;"><span leaf="" style="visibility: visible;">通过对每组数据中LEF与对应的拟合分析，可得到光合作用的光饱和曲线:PAR达到 500 μmol electrons m⁻² s⁻¹ 时，LEF达到其最大值的一半(半饱和点)。进一步对比不同冠层位置的数据，可发现关键特征:</span></p><p style="margin: 0px; padding: 0px; box-sizing: border-box;"><span leaf="">💥在弱光区间(PAR＜200 μmol photons m⁻² s⁻¹)，各冠层叶片的散点几乎重合，表明本试验中不同叶龄和叶位的叶片 PSII 最大量子效率较为一致；</span></p><p style="margin: 0px; padding: 0px; box-sizing: border-box;"><span leaf="">💥而在高光强条件下，不同冠层叶片的拟合曲线出现明显偏离，体现出叶位差异对光合电子传递的影响。</span></p><p style="margin: 0px; padding: 0px; box-sizing: border-box; visibility: visible;"><span leaf="" style="visibility: visible;"><br/></span><img src="https://img50.chem17.com/9/20261021/639281935737468236925.png" title="image.png" alt="image.png"/></p><p style="margin: 0px; padding: 0px; box-sizing: border-box; visibility: visible;"><span style="background-color: rgb(255, 192, 0);">MultispeQ 凭借其高通量、无损化、集成化的技术优势，在植物科学研究与农业生产实践中具有广泛的应用前景：在科研领域，可为植物遗传学、分子育种学、植物生理学等学科提供精准的田间表型数据，加速抗逆高产作物品种的筛选与培育进程；在农业生产领域，可实现作物病害早期诊断、生长状态实时监测、环境胁迫响应评估，为精准施肥、精准灌溉、精准防控等精细化农业管理措施的制定提供数据支撑，进而降低农业生产成本、提升作物产量与品质；在生态环境领域，可用于评估植物对全球气候变化及环境胁迫的响应机制，为生态系统保护与修复提供科学依据。</span></p><p style="margin: 0px; padding: 0px; box-sizing: border-box; visibility: visible;"><span style="background-color: rgb(255, 192, 0);"></span></p><p style="text-align: left;"><img src="https://img49.chem17.com/9/20261021/639281936683375810825.jpg" alt="IMG_6160.JPG" style="width:800px;"/></p><p style="margin: 0px; padding: 0px; box-sizing: border-box; visibility: visible;"><span style="background-color: rgb(255, 192, 0);"></span><br/></p>
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