DJ-WP01植物水势�?参数-价格-中国粉体罐�/title>

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$(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }); }); </script>  <div class="cpjj"> <p><strong></strong></p><p><span><strong><span>用途：</span></strong></span><span>DJ-WP01</span><span>植物水势仪用于测定植物水势（��）和它的组成成分及压取木质部导管汁液供成分分析用的一种仪器。可用它研究植物的水分关系和植物与环境的关系。适用于植物生理学、生态学、农学、林学及牧草等研究。据此指导作物及林草的合理用水和抗旱育种工作，是教学和科研工作的重要仪器之一。它操作简便、快速，适用于室内和室外野外作业、�/span></p><p><span><strong><span>测定原理</span><span>:</span></strong><span>植物在土壤—植物—大气连续系统中，根不断从土壤中吸收水分，而叶片又不断向周围环境散失水分，在这种水势梯度系统中，植物根—茎—叶也存在水势梯度，使木质部导管中的细小水柱受空气低水势的负压影响，形成水分向上运输的拉力。当植物枝条或叶片被切下时，导管中这种被拉紧的水柱断裂，水柱会从切口处向上端内部收缩。将切下的材料装入仪器的压力室内（操作程序见下），使切口一端伸出室外密封起来，加压，使枝条或叶片内的张力重新平衡把小水柱推回恰到切口表面为止，所有的压力即为植物的水势值、�/span></p><p><span><strong><span>技术规格：</span></strong></span><strong></strong></p><table cellspacing="0" cellpadding="2" border="1" bordercolor="#f2f2f2" width="100%"><tbody><tr><td><p><span>测量范围９�/span></p></td><td><p><span>0</span><span>–�/span><span>10.00 MPa</span><span>；数字显示读�?/span></p></td></tr><tr><td><p><span>读取精度９�/span></p></td><td><p><span>0.01MPa</span></p></td></tr><tr><td><p><span>外形体积９�/span></p></td><td><p><span>550mm</span><span>��</span><span>280mm</span><span>��</span><span>350mm</span></p></td></tr><tr><td><p><span>仪器净重：</span></p></td><td><p><span>9kg</span></p></td></tr></tbody></table><p><span><strong><span>产地：中囼�/span></strong></span></p><p><strong></strong></p><p><span>Email: </p><p> Shanghai@Dianjiangtech.com(</span><span>上海<span>) </p><p> Beijing@Dianjiangtech.com(</span>北京<span>)</p><p> Kunming@Dianjiangtech.com(</span>昆明<span>)</p><p> Hefei@Dianjiangtech.com(</span>合肥<span>) </span></p><p><span>扫描点将科技官方微信，获取更多服务：</span></p><p><span></span></p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; 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