Fracture in potato tuber parenchyma

被引：37

作者：

Hiller, S ^{[1
]}

Jeronimidis, G ^{[1
]}

机构：

[1] UNIV READING,DEPT ENGN,READING RG6 2AY,BERKS,ENGLAND

来源：

JOURNAL OF MATERIALS SCIENCE | 1996年 / 31卷 / 11期

关键词：

PRESSURE; PLANTS;

D O I：

10.1007/BF00355984

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Experiments have been carried out to assess the fracture behaviour of potato tuber parenchyma tissue from two different varieties (cvs. King Edward and Record) in three different turgor states (turgid, fresh and flaccid). Methods included wedge-penetration fracture tests, razor-blade cutting tests, ball indentation tests and compression tests. Turgor was manipulated by immersion of fresh tissue in osmotica of known concentration, and assessed by means of cell pressure probing. No significant differences in properties were ascribed to the difference in variety. Changes in water status were responsible for appreciable changes in the fracture properties of the tissue. Values of compressive Young's modulus and work of fracture were combined to predict critical crack lengths for different turgor states under given levels of applied stress below the yield stress.

引用

页码：2779 / 2796

页数：18

共 16 条

[1] ON THE RELATION BETWEEN TURGOR PRESSURE AND TISSUE RIGIDITY .1. EXPERIMENTS ON RESONANCE FREQUENCY AND TISSUE RIGIDITY [J].