Leaf water status determination based on mechanical and electrophysiological properties helps determine the inherent as well as instantaneous leaf dehydration tolerance synchronously. The leaf water potential (Ψ_L), physiological capacitance (CP) and gripping force (F) were determined with leaves of Broussonetia papyrifera (L.) Vent. and Morus alba L. Real-time leaf stiffness (LCS_rt) and maximum leaf stiffness (LCS_max) were investigated by compressing a leaf with external gripping force. Results indicated that LT displayed good correlation with F. Compared to M. alba, a better instantaneous dehydration tolerance or pressure resistance in B. papyrifera was correlated to its persistent stronger LCS_rt or LCS_max, respectively. B. papyrifera showed better flexibility and tolerance to wider range of pressure than M. alba. The higher leaf mechanical strength helped to maintain a higher outward pulling force of cell walls; thus, the subsequent negative pressure effectively inhibited cellular water loss. B. papyrifera exhibited better drought resistance than M. alba.

基于机械和电生理特性的叶片水状态确定有助于同步确定叶片固有的和瞬时的脱水耐受性。叶片水势（Ψ_大号），生理电容（CP）和把持力（˚F）用的叶片确定构树（L.）放空。和桑白皮L.实时叶刚度（LCS _RT）和最大叶刚度（LCS_最大）通过压缩与外部夹持力的叶的影响。结果表明LT与F具有良好的相关性。与白尾葵相比，纸芽孢杆菌中较好的瞬时脱水耐受性或耐压性分别与其持久性较强的LCS _rt或LCS _max有关。B. papyrifera表现出比白念珠菌更好的柔韧性和对更大压力范围的耐受性。较高的叶片机械强度有助于维持较高的细胞壁向外拉力。因此，随后的负压有效地抑制了细胞的水分流失。B. papyrifera表现出比Al。M. alba更好的抗旱性。